Passat (B6) :: Loud Rattle From Under The Hood When Car Started
May 14, 2007
I drove the family to the lake yesterday and returned with no problems at all. This morning I started the car and there was a really loud rattle from under the hood. I popped the hood and listened more closely. It sounded like it was coming from the top-end. When it shut down it seemed to whine a bit and kind of ground to a halt, almost like a belt was rubbing something. I tried to start again. Now it turns over but doesn't start. The oil's maybe .5-quart low, none on the driveway underneath and no strange smells.
I'm going to have it towed to the dealer today. I'm a bit concerned though I do have the security lockout feature. I also noticed the last time I washed it that both tail lights had moisture inside the lens and my power lock buttons are bubbling up. This one may take a while. I'll update as I know more.
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I bought a 2004 F250 super duty 4x4 with the 6.0 a couple weeks ago and have a few questions. Hopefully all of these things are normal, but I thought I would ask you experienced drivers.
1) Occasionally while driving when I lift off the accelerator pedal I can hear a sort of loud rattle under the hood. I assume this is the turbo shutting down? Is that normal?
2) 4x4 and locking hubs... I have the 4x4 hi and low switch on the dash. Do I need to also manually lock the hubs to go into 4x4? After reading the manual it seems like I can just turn the dash switch and they should automatically lock, but I'm not sure. The hubs are not marked, but going by the pictures in the manual I think I know which is "lock" and which position is "auto" or off.
3) Front wheels hop at full turn. I expected wheel hop in 4x4 or with the hubs locked, but even in 2WD with the hubs in the auto position the tires still "hop" or knock a bit at sharp turns. Is this normal?
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Have been chasing a rattling noise for a while on a 2002 Camry 4 cyl AT.
Here's a brief video: [URL] .....
The conditions when the noise appears are as follows:
Start car, turn AC on, place into drive/reverse. Rattle is present initially, then goes away after driving a bit.
The noise seems to be worse after the car has been sitting overnight.
If car is started and placed in drive/reverse without turning on the AC, then the noise is not present.
If the car is started and the AC turned on and the car is in park/neutral, then the noise is not present.
The tensioner pulley seems to be moving quite a bit in the video. Is this normal?
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Haven't posted in a long while because...on the coldest day of winter this year (it was around 5 degrees) I took off for work early one morning and before I made it to the highway, my oil light started blinking...I kind of ignored it for a moment because I have a small leak that requires I add about a quart a week (ok maybe this was a good leak already) in any event I had just topped off the oil that morning so I knew I should be alright and since it was so cold I reasoned that it was just an electrical fluke that was gonna clear up once we got warmed up.
Shortly after that I noticed I wasn't really accelerating as quickly as would be normal...so I kinda thought about the blinking light for a second and ended up shutting her down. When I hopped out to look under the hood there was oil everywhere...as well as a trail leading all the way back to my spot in the driveway. I ended up towing her home and she has been sitting since.
Today was the first nice day and I couldn't wait to see what was up so I filled her up with oil again and waited for the leak...nothing. So I put her on the charger and figured it would have to be fairly obvious where the leak was coming from if I fired her up for a second.
I have to say she sounded awful...valves clambering away...but the oil leak revealed itself and I shut her down immediately. I am really hoping that I didn't do that much internal damage and that all the valve noise is primarily from it not being started for so long...but I guess I will have to wait and see on that.
The leak is coming from just to the right of and slightly above the oil filter casing. Its definitely not the casing itself or anything to do with the oil filter...it appears to be just above this thing, what it is but it has a large bolt holding it on (large like the 36mm on the oil filter itself).
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I have a 2000 VW Passat 1.8T Automatic. During a cold start, I notice a rather loud noise like a motor whirring that lasts for approximately 30 seconds. My RPMs also run about 200 higher than idle during this time. After the 30 secs the noise goes away (sounds like this motor powers down) and the RPMs return to normal.
It doesn't happen every time I start the car, just when it has been sitting for more than 4-5 hours or overnight. What this is and what if anything I should do?
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My wife was driving the car on the freeway and flames started coming out of the hood/vents/etc. We just picked the car up from service on Friday...Today is Monday. Whats the standard protocol for a car that's is still under warranty that goes up in flames?
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So I just picked this car up, (2000 20v turbo passat) 93k miles and I did a tune up (plugs, air filter, oil change w/ oil stabilizer, and injector cleaner) when i was out beating on the car a little, afterward I got to a stop sign, and i heard a VERY LOUD noise coming from the passengers side under the hood, it almost sounded like a loud motor, or the turbo but it was too loud to really determine... it was only there for about 10 sec then turned off but came on again about 1 min later. is this a bad bearing in the turbo? or what might it be?
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My 07'Passat 2.0T has this annoying loud rattle sound coming from somewhere behind dash board whenever the car was left outside ( under ~55F) overnight. The problem was gone after the car sit under the sun for hours. Is it cause by cheap material VW used in 07 model or assembly ?
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While I was pulling off and boost started to build up I heard a loud "pop' ( sounds like when you disconnected the hose from an air compressor ). After this happen the car doesn't wanna idle or rev up past 2k rpm'ish. I was getting a ton of black smoke from the exhaust and had a very heavy scent of gas. Does this sound like a blown turbo symptoms?
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Ever since day one with my new MKVII GTI, there has been a consistent metallic (tinny - like the sound of someone shaking a soda can with the tab inside) coming from what seems like the passenger side footwells. This rattle can only be heard at low RPM. I can hear it most around 2,000 RPM, and I can force it to happen by applying light pressure to the gas peddle. I don't know if the rattle doesn't happen at higher RPM, or if I just can't hear it over the engine and the typical road noise. The rattle is pretty consistent in tempo.
I've done some research, but can't determine if it's the waste gate actuator, fuel lines, or something else. I'm new to maintaining cars properly and I'm not the most mechanically savvy person, but I want to learn. So, I haven't tried to locate the actuator because I don't know where to start and I haven't tried to "tie down" the fuel lines because I'm not comfortable doing this fix on my own.
I've taken the car to the dealership once, and I was told that the waste gate actuator doesn't even exist on the MKVII. Interestingly, two different techs told me this. They deny that the actuator is even real, much less causing any problems. I suppose it could also be the armrest, as some people say it tends to sound like it's coming from the passenger side.
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The front of the hood on the right towards the headlight is rattling pretty bad, but stops whenever I place pressure on the hood on the right side. The hoods shut all the way so I'm not sure whatsup. Not a big deal just pretty annoying.
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yesterday I heard a faint rattle coming from under the hood while the a/c was on, when I had my son turn it off, it went away. Right now it's barely noticeable, but I don't want it to turn into something major. I own a '08 ES with 88,000 miles and all my service is done at the dealership.
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I was driving our '11 Sonata Limited 2.4 today with wife and infant son... While merging onto a main road, I accelerated to switch lanes without slowing traffic and noticed the car felt oddly underpowered.. I kept my foot on the gas, and a substantial rattle emerged from under the hood so I let off and drove steady on... We made it to our destination and I popped the hood to find oil soaked into the valve cover and head... I checked the oil and the stick was still wet, but since the car was just running I'm not sure the exact level...
Unfortunately, I recognize the noise it made on the road, and I'm 99% certain it spun a rod bearing... In other words, the engine is shot. 63,362 miles, synthetic oil changes every 4k-5k miles, dealer maintained...
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I took my car in for an oil change and they said I should get the fuel injector and upper intake manifold and valve cleaning treatment. When I picked up the car I noticed a rattle or low pitched ticking sound coming from under the hood. The car has an automatic transmission and the noise frequency increases and decreases with the rpm's. It only happens with the car in "drive". For the seasoned followers, it sounds like the sound we got from fastening baseball cards onto our bike frames to make noise as the wheels turned - just describing the sound. When I took it back to the Mini dealership in Phoenix (who shall remain anonymous), they said I needed a new transmission.
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A relatively loud under hood squeak at idle has developed.
Applying some pressure to the metal fuel lines by the engine works.
Is this noise associated with the TSB that addresses the fuel line noise under the passenger seat ?
It seems to be a different issue.
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I have a 2002 honda accord dx. We have had to get it fixed a few months ago. It had something to do with the cooling system. Ran fine until recently. It ran hot. I pulled over. Let it cool. Never happened again. I watch my temperature gauge and only drive it around town.
Today, I left it running for a short time while I picked up my son to keep the air conditioner running. As I was walking out the door, I heard a loud pop and smoke started pouring out from under the hood. I ran out and turned the car off immediately. I'm freaking out! I'm letting it cool now. I haven't popped the hood yet.
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2.7L V6 here. It's got a loud ticking noise under the hood that sounds like it is coming from about the middle of the head closest to the front. It's been doing this for a long time now and is finally bugging me. The noise is related to RPMs meaning that as you rev the motor it gets faster (but not really louder). When I pulled the valve cover about a year ago both heads had lots of gunked up old burned oil which I cleaned up as much as possible. It doesn't throw any codes and runs just fine.
I'm about 99.9% sure I've got a collapsed lash adjuster(s). Is there a way to test it without pulling it? Can I pull the valve cover and have someone turn the engine over a few times to check for oil pumping from the lash adjusters? Is there a way to press it and see if it moves without pulling the cams? Any options to try and clean them while still in the motor?
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It's cold and raining quite hard out and I just took my car out to the store and when I pulled into the parking spot a very loud squealing noise began coming from under the hood (sounded like driver side). I turned the car off and restarted and it was still there. I turned it off again and started it and it was gone. I drove the car home without issue and restarted a couple of times with no noise. The car ran great otherwise. What that was? I know very little about cars. It scared the crap out of me--it sounded quite loud--more of a screeching sound.
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I have a 2007 Mazda 6 with 133000 miles on it. Recently it has started making a very loud sound that comes from under the hood. The sounds is comparable to the sound a semi truck makes if it is idling. The noise is not constant, usually happens when I put the car in park or if I'm driving at low speed (under 20mph). The sound lasts around one minute.
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I was driving today at maybe 55mph on the highway my car has 82,000 miles and I started to hear a loud jackhammer like noise come from under my hood I pulled over and popped my hood I didn't really see anything mind you I'm no mechanic but I was able to make it home but when I accelerated it got louder, what could be causing this problem? It is a 2006 Ford Mustang 4.0l v6....
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The wife came home with a really loud screaming noise coming out from under the hood. I used my stethoscope and I'm 95% sure it's the alternator. It was a pretty easy removal process, sending it out to be rebuilt tomorrow. I guess at 90k I have no reason to complain.
I chose to get it rebuilt because of info that I had heard true or not, that Toyota alternators have an internal clutch and aftermarkets may not work properly.
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