Hissing Sound From Engine Bay

So when I parked it I could hear a loud hissing sound coming from just under the passenger side front bay everytime I revved the engine, The truck idles fine, starts fine and you can rev it up without an issue but as soon as you try to drive it is like you are towing a huge trailer and it is holding you back. He got the engine turned over again, but the van only lurched to one side on its rear wheels. I'm hearing a weird hissing sound from the engine bay that intensifies with RPM. It has always been designed as a soft-roader; much more accomplished on the road than on dirt, and has. Loud sucking/ hissing noise coming from engine bay? 3 Answers. The Gen 1 RDX power steering pump inlet line can sometimes leak, allowing air into the PS pump, which foams the fluid and makes a whining sound that you can hear from the engine bay when making low speed turns. On accelerating, especially under load in 3rd gear and up there is a high pitched hissing or fizzing sound coming from the engine bay (?RHS of RHD car). There are different levels of hissing, as we'll explain here, but the bottom line is that hissing isn't a sound you want to ignore, especially with summer just around the corner. CAI (cold air intake) A modified replacement intake system, often bypassing the stock airbox, meant to supply the engine with cold air from outside of the car (as opposed to hot air from under the bonnet). 8 T gas engine. common areas to look for are: rubber hoses, radiator expansion tank, water pump, radiator cooling fin, etc) - left to right, cheap to more ex. A motorcycle frame is that part that combines performance, practicality, and style to a bike. I took ouy my air intake silencer and changed the filter to a better flowing one than stock and I can hear it suck in air when I accelerate. Sounds like a hissing/squeaky electrical interference sound. 06 focus noise on decel, 2012 ford fiesta noise from engine bay on passanger side, 2012 ford focus making a hissing sound on passenger side, 2013 ford focus noise coming from front in park, 2016 focus metal rattles, focus rs rattle noise, focus st hissing passenger, ford focus rattling engine noise from passenger side,. In this article, I present some of the possible causes of whining noise while accelerating. Will cost approx. Nothing of the sort in the engine bay or under the truck. Offers computer pc cases, pc and computer cooling systems, cpu coolers, power supplies and custom pc mods for best computer performance and cooling. My car is corolla 2003 se saloon auto. you can set up a pressure tester by getting an adapter with a pressure gauge and hooking an air compressor up to the intake, then let enough air in until the system is pressurized to about 5 psi. They are also called tidal waves. Remember that the fan belt is needed to operate not only these critical components but the engine as well. 6 copper seals + o-rings bought from Germany (was around 1/4 of the price of Audi) and fitting in a few hours today. Goodmorning, my car sounds different but i dont have a check engine light on ive had it for a couple months now and i just got my breaks fixed and got a oil change. The noise sounds likes it is coming from the area in between the radi. If the sound stops when one of the belts is. The first one related to transmission shifting, and indeed, car would not go into Autostick mode. I have read on here about secondary air injection pumps making this sound but from what i can see this applied to the mk1 tt not so the mk2. I'm hearing a weird hissing sound from the engine bay that intensifies with RPM. An 8-pin plug connects the decoder to the locomotive beneath the cab footplate. Within the first half-hour (when the engine warms up), the sound disappears. It's this middle range pitch, hum, that just stays constant. About the size of a pencil. It is not the blower motor because when the AC is off but the fan is on, I don't hear it. I just purchased an AUDIOVOX ADV SIRPNP2 and I am completely unsatisfied because of the hissing background sound. The silencer is the part of the exhaust that usually needs attention first, as it is the furthest away from the engine and is the most likely to be corroded by acidic moisture. Make sure any loose change in interior compartments isn't deceiving you. Propane gas leaks, a clogged burner, or a natural disaster can quickly become a problem if simple safety guidelines are not followed. It was a fainter noise than after my long hot drive a couple of day ago, so it seems to be related to the engine temperature, and more noticeable as the engine gets hotter. Hissing or "Pfffttt" sound from engine bay. Walked out to my garage to hear a loud buzzing sound coming from the engine bay of my Hellcat. Came home and inspected the underside of the car, and the engine bay above. went back to normal. [Archive] '05 TB LT making hissing sound at rearend area OEM Issues K&N recharging and cleaning, and deep detailing the engine bay. There are different levels of hissing, as we’ll explain here, but the bottom line is that hissing isn’t a sound you want to ignore, especially with summer just around the corner. Now that I'm listening for it, I can definitely hear a hissing sound from the engine bay with the car running. General Board. Today when I parked up with the engine hot and opened the bonnet, I could hear a faint hissing sound and the sound of water or something fizzing. * Light clattering sound when you first start the engine – A rapid tap-tap-tap-tap (or tick-tick-tick) sound that goes away within seconds after the engine is first started after it’s been sitting overnight (or longer) is usually no cause for concern. Took about 2 hours for both and I was really taking my time. The noise itself is more than a hissing sound, it's more like a wheezing sound, like a violin It picks up as the engine speeds up, but only noticeable when I drive slow, say 30km/h. I was thinking i'd take it back tot he exhaust place just to check it out since its been a few months. It hisses as soon as I turn on the ignition, and stays on. The vehicle itself is based on the first generation Lexus IS (also known as the Toyota Altezza), with a few minor influences drawn from a range of second. Also the pedal instantly lost the power assist after the engine was off, whereas with no split the vacuum holds for a while/ few pumps of the pedal. Remember that the fan belt is needed to operate not only these critical components but the engine as well. I have a 2011 Mini Cooper S and it’s in the shop now with the check engine light on. whizzed , whiz·zing , whiz·zes v. Â Well there are some ways to. Couple more of the engine bay for good measure - Im guessing that the jaffa is the original and they just couldn't be bothered to take the engine out to spray. Valve and hydraulic lifter noise has a clicking sound that usually quiets down as you raise the engine RPM’s. if the hissing sound is coming from the inside then the diaphragm has a hole in it, but if its coming from the engine compartment then it is the vacuum hose connection. So what does a hissing sound mean?. When the engine speed drops to a certain RPM -- such as shifting to the next higher gear, the hissing stops. If the loose piece of an old drive belt is slapping around the engine at high speed, it can sound like an engine rattle. I have noticed a Hissing sound on my Vento TDI initially thought it was air leak from the front right tire. Hennessey brought to the arid test venue a fire-breathing Venom 600 roadster hissing with attitude. When there's white smoke, check first for coolant leak. Usually in the morn I hear this faint hissing sound and I've checked all hoses in and around fuel injection and no leaksany ideas out there?:. Oh and I think I can also hear a hissing sound coming from the engine bay, cannot determine where from though, I have got a piece of old pipe and listened to the engine bay and I think its some where around the EGR pipe near the firewall. When she reaches above 2500rpm she starts making a hissing flutter sound from the engine bay. Actually, a couple of consistent sections on my way to work. While the 6. Sizzling is like a slice of bacon in a hot griddle. Will cost approx. It would cycle every 3 seconds. My VS Acclaim with air bags has started making a hissing noise (similar to changing the vents) when turning the steering wheel. some of these are just metal probe. I did a second round of the throttle-body-cleaner test, but didn't find any hot spots. Extremely faint but noticeable. That appears more likely since it was noted that the A/C didn't cool when it was tried later. I thought mine was hissing in the summer and it was a rubber hose that had perished near the bulkhead, but then was coming out under the car. hissing sound from intake manifold Posted by Sephroth57 all the little black hoses running around your engine bay are vac. Sounds like a hissing/squeaky electrical interference sound. I popped the hood and it seemed to be coming from the passenger side of the radiator or the engine block near the engine mount I thought I might of had a. When I released the brake pedal, the sound again came. When I got it home and opened the bonnet I could hear a hissing/vacuum like sound coming from under the plastic cover. I also get this hissing sound sometimes so I had mine checked by a friend who’s an auto mechanic. Zzzzzing Noise From Engine Bay. Hissing sound may be vacuum line leaking from a loose connection or crack in pipe somewhere, or the normal bleeding. Explain the difference between a focus and an epicenter. New Booster and hissing sound is gone 2. About the size of a pencil. Problem: The blower motor does not function on fan settings 1 or 2. No sound above or below and can last several seconds if I maintain that RPM. Hissing noise coming from engine bay (self. Hissing noise under dash it enters the bulkhead from the left of the engine bay next to the 2 big water pipes and it goes to the recirculation on the left of the. First I heard a strange hissing sound for about 3 second then it died. Sometimes (bout 1 out of every 10 times) when I'm accelerating (can be WOT or not) there is a hissing noise in the engine compartment. 78,000 Miles QX56 With Whining Noise At Startup Check engine light comes on intermittently. Whistling type noise from engine bay Dealership just called, they replaced the intake manifold and either a hose or a hose clamp and that appears to have taken care of the whistle. The vehicle itself is based on the first generation Lexus IS (also known as the Toyota Altezza), with a few minor influences drawn from a range of second. With the engine off, inspect the drive belts for tension, wear, and cracks. 06 focus noise on decel, 2012 ford fiesta noise from engine bay on passanger side, 2012 ford focus making a hissing sound on passenger side, 2013 ford focus noise coming from front in park, 2016 focus metal rattles, focus rs rattle noise, focus st hissing passenger, ford focus rattling engine noise from passenger side,. (I live in Canada btw). It can be as simple as it is cold outside, and your fuel injectors are rattling or your engine is low on oil. While there are things in the engine bay of your F-150 that could fail and cause a hissing noise, if your truck is running correctly when you hear this hissing noise on shutdown, the odds are good that it is just the air conditioning system depressurizing. Took about 2 hours for both and I was really taking my time. Thanks guys, Rjudgey, my car is only two years old, 46k miles. Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? I'm not sure. Like you, I thought it was a car in front of me, but quickly realised it was coming from my engine bay. I had a hissing brake pedal on my 1992 Cutlass Supreme Convertible (3. The compressor was not on, nothing was on inside the car, but it sounded like it was cutting on and off. Like I said I come to a stop, idle is fine then idle jumps up a bit, hissing sound is heard, after several moments it goes away and idle returns to normal. Enlist a barbaric orc warrior onto the battlefield in your next game! Introducing Epic Stock Media’s fresh new voice sound pack – “AAA Game Character Orc”. But the sound isn't coming from that area at all. They can be used commercially in things like movies, games, and anything else you might need a cool sound for. Hissing Sound. Since you probably have the blower turned off or on low, you will hear like slight hissing/bubbling sound of the gas, this noise is always there when the compressor starts up. When I got it home and opened the bonnet I could hear a hissing/vacuum like sound coming from under the plastic cover. VerticalScope Inc. The car in question is a 2007 Nissan Altima 2. During high-traffic times this could take a few moments. My wife's 2007 GTI has started idling really lumpy when warm, will sometimes randomly surge on revs, & when the engine is turned off I can here a hissing noise from the right hand side of the engine bay (As you look into the car standing at the front). It hasn't affected performance, no faults have come up on VAG and the dealers can't find anything wrong. This is not that noise. Identifying Weird Car Noises. Hey Guys, Lately I've noticed a Hissing sound, more like "A can full of bees" when I'm already hitting Vtec at 6k rpm. It makes a hissing noise when first started up and for about 10-15 minutes thereafter. Still a hissing sound from left engine. It really does sound like a diesel when its moving. Also, when I put in gear (reverse, drive, neutral) it slows off but then comes on again. The car feels very slow but it does sound OK. What you have to understand is that there are plenty of hoses in your engine bay that perform a variety of functions. and when i drove it home when i applied pressure to the brakes i could hear like a hissing sound of air coming from the brakes and its still doing it now. When I select Reverse I hear a hissing sound that seems to be coming from the Transmission, I can hear it when I stick my head under the car, I thought it was coming from engine bay near Alternator but it seems to be coming from Under the transmission. Hissing sound may be vacuum line leaking from a loose connection or crack in pipe somewhere, or the normal bleeding. Personally I'd have a good look under the bonnet. in the engine bay it is not noticeable with the engine running. Get Hissing Sounds from Soundsnap, the Leading Sound Library for Unlimited SFX Downloads. New Sounds for Korg Kronos MOD-7 Sound Engine 64 Programs - 32 Combis Korg Kronos KRS-81 - Sonix Bliss - Kid Nepro's first library of sounds for the Kronos MOD-7 sound engine is now available at the Korg Kronos Web Shop. This is all new to me. This is more of a whistle sound (kinda like a tea pot) 3. also the same noise sounds like it 'dumps' when i lift off. Normally last about few seconds only Comes on and off wondering if it may be the fan belt. Hissing noise found, I think. Hissing sound from engine area. When there's white smoke, check first for coolant leak. Valve Train Noise. It's a fluttering/hissing sound. Sounds fine at idle. What does it mean when I hear hissing when I apply the brake? in the engine bay (steel wall between cabin and engine bay), is 6"-7" dia. The lights suddenly went out and the craft descended making a hissing sound. And is RPM related (about 1800ish. Basically when I press throttle pedal very gently RPM drops from 700 to let's say 550 while making this sound and then start to increase. Hello, I am trying to diagnose a sound that is coming from my 2001 Camry 2. When I switch on AC now, there is a gurgling/hissing sound. booing, hissing. The sled is in break in period at about 13hours. (Today)noticed the hissing sound as. Engine Front Squeak or Ticking Noise. Personally I'd have a good look under the bonnet. 05-19-2017 10:22 AM #1. My engine idles perfectly fine and my brake pedal is fine as well. We came to the conclusion that if it wasn't a hole in the gas tank, then it had to be the fuel line or something. _____ 03-13-2012, 09:28 AM Modshack Low Profile Engine Bay Trim,. Now that I'm listening for it, I can definitely hear a hissing sound from the engine bay with the car running. Hello All, My girl has a 2014 Jetta automatic. It is controlled by a round pulley called a tensioner that keeps the line taught as it. No change in frequency with accels. I'm hearing a weird hissing/whooshing sound from the engine bay that intensifies with RPM. The compressor was not on, nothing was on inside the car, but it sounded like it was cutting on and off. Other typical chapters in the manuals include: wiring diagrams, suspension, brakes, drive belts and chains, electrical systems, exhaust, clutch and the engine. This may be a stupid question, but I'm asking anway. We took a bungee and hooked one end to the solenoid linkage, ran it down under the frame and hooked the other end to another point to hold the solenoid closed. The same noise occurs with new set up and same spot it's just joined by another noise when I routed the tubing around he master cylinder along the passenger side engine bay wall. A good way to check the hoses for cracks is to use pliers to pinch off all the hoses at the source one at a time and listen for the noise to subside. When I got it home and opened the bonnet I could hear a hissing/vacuum like sound coming from under the plastic cover. Definate sound of air hissing which on an American car would be in the drivers side but in my Aussie car is in the passenger footwell. Sound happens when brakes are not in use. I have not driven my car much, it's 113,000km right now and it's a Alpina B8 from 1995. Subtle Hissing / Fluttering Noise coming for Drivers Side of Car General E46 Forum Subtle Hissing / Fluttering Noise coming for Drivers Side of Car - E46Fanatics User Name. This sound can be heard even when idling, but goes as soon as the brake pedal is touched, even lightly. The compressor was not on, nothing was on inside the car, but it sounded like it was cutting on and off. Same sort of sound. A sound is a noise, something you can hear if you're in the right spot and it's loud enough. What's that high-pitched whistle coming from my car? the sound either disappears or it's very faint. A folding cab apron spans the scale 2-foot gap between the engine and tender. The clutch is then released and the RPMs pick up again. The whine would stop and start as I unplugged and plugged the alternator. I have not noticed it b4 thursday, and I have had this truck since Nov 2005. The silencer is the part of the exhaust that usually needs attention first, as it is the furthest away from the engine and is the most likely to be corroded by acidic moisture. So it does appear when the vehicle is not moving and the RPM's are revving. It's normal. It's a simple metal used to protect the engine, seat, and suspension. After driving and i shut off my car i hear a hissing sound or something like it coming out of the engine bay but its not loud and it stops when the engine cools down. When i took it out the last time and it shut off on me the engine was actually responding to me attempting to crank it. DREAMS AND MYTHOLOGY OF CATS, AND OTHER FELINES. But the sound isn't coming from that area at all. Indeed, any hissing sounds near or in the air box with engine running indicates a leak. Cause: These three sounds often go hand-in-hand with an overheating engine. 6 exhaust sound. Not that anyone would ever do that. Define whiz through. While there are things in the engine bay of your F-150 that could fail and cause a hissing noise, if your truck is running correctly when you hear this hissing noise on shutdown, the odds are good that it is just the air conditioning system depressurizing. i'm fairly certain it's coming from the engine bay - it almost sounds like some aftermarket intakes i've had before. When I switch on AC now, there is a gurgling/hissing sound. went back to normal. Explore KOHLER toilets, faucets, sinks, showers and other kitchen and bathroom products. it seems like it's hissing right there. You can verify it is working by listening to a "hissing" sound coming from the engine bay for the first few min. That appears more likely since it was noted that the A/C didn't cool when it was tried later. In drive, idling at a stop approx 550 RPMS. It then turned bluish in color and began to hover. RE: Hissing noise! Please help! IP: Logged Message: I have the same noise when engine is idleing but when I give it gas it almost disapears. MechanicAdvice) submitted 1 year ago by reggit99. (Link to the sound - ). Sometimes (bout 1 out of every 10 times) when I'm accelerating (can be WOT or not) there is a hissing noise in the engine compartment. Coincidentally, my radio has begun to produce the sound of the engine through the speakers on and off. I then consulted with my father and the original mechanic (owner of Lodi Smog & Services) of the vehicle, as well as, other mechanically knowledgeable sources - ALL concurred that the engine had been effected/damaged by previous oil loss - the rattling sound within engine compartment being the most telling sign. Define whiz through. it's tube by the back of intake ram ripped. Your car idles rough and you can hear a slight hissing sound coming from the. Fixing Common Vacuum Leaks and my brakes are not working well I hear a hissing noise I have a 1997 c180. He got the engine turned over again, but the van only lurched to one side on its rear wheels. The plastic cover over the air intake plenum,by the wipers, is the only part that needs to be removed. So it does appear when the vehicle is not moving and the RPM's are revving. "Whitefish Bay makes top 10 on list of 50 of the best cities to live in. Identifying Weird Car Noises. A folding cab apron spans the scale 2-foot gap between the engine and tender. Outside of knowing how to change oil and air filter, I don't know much of anything else about fixing cars. Plumbing Supply piping noises, including a high-pitched hissing or whistling sound may be heard as water runs through building supply piping. Had a look in the engine bay and couldnt notice anything that was obviously wrong with it, anyone experienced this before or got any suggestions what it might be?. One fender lost it’s air but otherwise I cannot find any defects. Mufflers and Resonators reduce the sound of the engine’s exhaust gases running through the exhaust pipes and out to the back of your car to a minimal sound level. To make a whirring or hissing sound, as of an object speeding through air. introduction ; books ; articles ; credo ; fiction ; journal ; videos ; wit ; logs ; poems ; photographs ; requiem ; chart ; lists ; contact. But I can't locate it specifically, and I'm not sure whether it's nornal or not. The clutch is then released and the RPMs pick up again. The hissing noise lasts about 3 seconds and then stops. It almost sounds as if something is "caught" or is dragging on some rotating object. I also hear a co. Hello All, My girl has a 2014 Jetta automatic. Should users dominate the internet go searching engine recent results during your niche, then you happen to be ruling industry. I immediately drove back home. When I stuck my head near the driver-side rear under carriage (near the rear tire), I heard the noise coming somewhere from. Walked out to my garage to hear a loud buzzing sound coming from the engine bay of my Hellcat. First the sucking sound when within a second of the engine being shut down was coming from the intake area. No change in frequency with accels. the 300ZX's engine bay is. I have a 2011 Mini Cooper S and it’s in the shop now with the check engine light on. I'll try other duct settings with A/C on to see if the noise changes. It could also be some sound proofing has fallen away, or even that you've only just noticed it and are concerned. common areas to look for are: rubber hoses, radiator expansion tank, water pump, radiator cooling fin, etc) - left to right, cheap to more ex. Valve Train Noise. hissing sound when shutting off engine of 2002 f-150 Post by dzodzo » Thu May 14, 2015 8:54 pm There is a sound like air pressure releasing when I turn off the engine of my 2002 f-150. Then I sent a message to Clifton via PM about the Walbro pump that he had purchased; eventually, the conversation went to the " hissing " noise from the engine bay. more of a psychological thing (since installing it, i think it should. What you have to understand is that there are plenty of hoses in your engine bay that perform a variety of functions. At first, I thought it was my water heater, but no. F30 / F31 / F32 Model Year: 2012 + E90 / E91 / E92 / E93 Model Year: 2006 - 2011 4; 5. Sometimes, it will emit a hissing sound that can be heard from the engine bay. and when i drove it home when i applied pressure to the brakes i could hear like a hissing sound of air coming from the brakes and its still doing it now. Humming sound coming from engine keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Bealach Óisín, Co. The car in question is a 2007 Nissan Altima 2. Delta Liquid Energy's primary concern is that of customer safety. When the engine speed (not car speed) reached a certain RPM, the Hissing kicks in, constant frequency hiss. Our certified mobile technicians come to you 7 days a week between 7 AM and 9 PM. 0i engine bay hissing noise If this is your first visit, be sure to check out the FAQ by clicking the link above. In fact I don't notice anything strange with my brake feel or how my engine runs. When I select Reverse I hear a hissing sound that seems to be coming from the Transmission, I can hear it when I stick my head under the car, I thought it was coming from engine bay near Alternator but it seems to be coming from Under the transmission. | This sound should stop immediately when you turn off any fixture that is running water in the building. I immediately drove back home. and then I heard a small blink sound when the. went back to normal. Additional PPE might be goggles or a face shield. common areas to look for are: rubber hoses, radiator expansion tank, water pump, radiator cooling fin, etc) - left to right, cheap to more ex. I'm not sure if it's the down. when i press down on the pedal a littlle to accelerate a weird hissing whistling sound comes from the engineseems to be from the intake manifoldbest way i can describe it is that it sounds like a turdo charger spoolingalmost like air is leaking out of somewherei havent the foggiest idea what the hell it is. It's quite unnerving because it ties in with coming back from the service. My engine seized today in the mountains. When I stuck my head near the driver-side rear under carriage (near the rear tire), I heard the noise coming somewhere from. Hi guys, I recently changed cars to a ~3 year old / ~40k miles Altea XL with the 1. Soundbars are special speaker enclosures that rival the sound quality of regular stereo speakers. 4L Power Stroke production run only lasted a few years, International's last engine for the Ford Super Duty proved to be a pace setter in the light duty truck market during its production. It gets louder as the engine revs up, as well as the turbo whistling, sounds like a mad snake under the bonnet! Nice one guys!. Rattle: Check the exhaust and its hangers, and your brake calipers and pads to ensure they're tight. Four Common Car Noises, Their Causes, and How to Fix Them. in the case of the Edge, on the inside front most portion of the door (towards the engine) there is a black arm that pushes into the door when closed. The compressor was not on, nothing was on inside the car, but it sounded like it was cutting on and off. Online Tone Generator offers three flavours of noise: white, pink and brown. NHTSA — Engine Problems. Hissing when accelerating. To make a whirring or hissing sound, as of an object speeding through air. I know that's not near the driveshaft but I don't know of anything down there that would make a hissing sound. It's been a few days, I heard sound come from the engine bay like is sucking air. The hissing means your cooling system has possibly developed a leak. Check levels weekly; Check level when engine is warm. Discussion in if you had the engine off the noise you are hearing is the slow depressurisation of the cooling system. 2nd Gen Ram Tech - Hissing Sound When I Accelerate - I have a 98 Ram 1500 4x4 with a 318 engine. A faulty exhaust manifold gasket will produce an exhaust leak that will sound like a hissing or tapping sound This may result in a burning smell coming from the engine bay as a result of the. Hissing noise when shutting off engine. I drove it home yesterday and when I parked it noticed a hissing sound coming from the engine bay. 2012 ford fiesta noise from engine bay on passanger side, 2012 ford focus making a hissing sound on passenger side, 2013 ford focus noise coming from front in park, 2016 focus metal rattles, focus rs rattle noise, focus st hissing passenger, ford focus rattling engine noise from passenger side, ford focus spinning loud sound on passenger side. 08-28-2009, 03:29 PM. When I switch on AC now, there is a gurgling/hissing sound. Hi everybody, Took the car for a drive a couple of days ago ran great, had loads of pullthen went to start her up yesterday and it didn't sound right at all, there is a hissing noise coming from behind the engine (near fuel lines?) and it makes a weird popping (?) sound sometimes when i stop revving and/or when i turn the engine off, there is also a strong smell of petrol in the engine bay. The Volkswagen Group is systematically refunding owners for EGR failures after the emissions “fix” Posted on February 1, 2017 by Karl — 324 Comments ↓ Our article regarding EGR failures after the VAG emissions “fix” prompted many of our readers to get in touch looking for urgent help and advice. Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on? I'm not sure. A few months ago, I began hearing an intermittent but loud hissing sound through the headphones. I have a buzzing/humming sound somewhere around. either way you need a new brake booster. in an aerosol can and spray it around the engine bay with the engine running. With the engine running use a length of rubber tube to listen to the intake 'hiss' from each carburettor. It has been pretty cold in the mornings in north ga, 30's. The engine may run well at higher RPMs, but surges, runs rough and struggles to maintain stable RPMs at idle. SO I noticed on thursday a hissing / shhhhhhhh sound constantly coming from the engine bay, i can hear it while inside also. There are several common causes of engine vibration in a car, and they all result in shaking and noises that can be quite alarming and sometimes scary. ) in-line four cylinder engine is a double over head camshaft with hydraulic lifters and four valve per cylinder design. This video is after the replacement was installed. Since winter started, I notice a loud sucking/ hissing sound coming from my engine bay, the colder it gets, the louder it gets. Hissing or "Pfffttt" sound from engine bay. 05-22-2011 08:45 PM hissing sound n smoke from engine. Outside of knowing how to change oil and air filter, I don't know much of anything else about fixing cars. What's that high-pitched whistle coming from my car? the sound either disappears or it's very faint. When the weather got hot it became a brief fog horn sound with the sucking sound. Hi guys, I recently changed cars to a ~3 year old / ~40k miles Altea XL with the 1. Modern air conditioning systems like the one in the F-150 hiss when powered down, but it is normal. They sometimes reach heights of over 50 feet. Engine size, design, and features play one of the biggest parts in it. I'm unsure if the air is continuously leaking, you definitely get a loud 'psshh' after stabbing the accelerator, it quietens after that and if it is continuing, it's drowned out by engine noise. I got my oil changed at the dealership a while back and when I got back in my car is when I noticed it. Sometimes when i give my car light throttle i hear this spinning metal sound, kinda like a whirring noise, its hard to describe. When I accelerate there is a load humming noise coming from the engine. Its floor casting includes a circular grill that protects a downward-facing speaker mounted inside a sound box. Since winter started, I notice a loud sucking/ hissing sound coming from my engine bay, the colder it gets, the louder it gets. Join the F-150 Online forums now!. What's that high-pitched whistle coming from my car? the sound either disappears or it's very faint. No sound above or below and can last several seconds if I maintain that RPM. A sound is a noise, something you can hear if you're in the right spot and it's loud enough. The PCV regulator diaphragm has a round non-removable cap on the driver side of the valve cover. so my question is, if my boost gauge is showing the turbo boosting, but im not. Not sure if this is normal or not but when the engine is running and the door is open I hear a constant very high pitched hissing noise from the engine bay. Hi guys, I recently changed cars to a ~3 year old / ~40k miles Altea XL with the 1. There wasn't a huge amount of fuel in her (90 mile range, no reserve light) so I've stuck £60 in just incase but its not helped. It lasts for about 15 seconds and is followed by what sounds like an electronic hum for like 3-4 seconds then. Then noise comes out (that mean noise comes out when engine running with load). You may have noticed that when you turned off your modern Ford truck or SUV, there is an odd hissing coming from the engine bay. The brake servo is forced into a strange existence; half in the engine bay, and half under the wing.