Golf V R32 :: Sucking Sound Coming From Engine Bay When Throttle Was Pressed
Feb 18, 2013
Ok, driving home tonight from boarding (semi hard driving) car started running and shifting weird, loss of power, weird shifts in drive. At first red light I could hear a sucking sound when the throttle was pressed,or downshift tranny in manual mode. If you put the car in neutral going down the road and stab the pedal about the third time throttle will maintain 3g rpm. Babied it home, popped the hood blipped the throttle and there's def. a huge sucking sound coming from engine bay. I lightly sprayed intake/vacuum hoses/airbox etc with starting fluid and no change in idle. cant see anything loose. WTH?
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Today I should make trade for MKIV R32 and I only thing I'm bit worried is this one sound. It appears when speed is over 40 mph/60 kmh. And especially then when I set my gas pedal loose / idle. The sound seems to be coming from back and it reminds the sound when you leave your window just little open and wind blows in making very similar sound. It is high frequency sound and not loud but still can clearly be heard. Almost like whistling type of sound. Then when speed decreases below 40 mph the sound disappears.
The car has milltek resonated exhaust.
Only thing I could think of is that if there could be some hole in exhaust pipe or in window caulk/seal..
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So I drive a 2008 R32/U.S. spec and I was in neutral when I pressed the throttle and it would not rev over 4000 rpms and was wondering why??
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The last couple months I have noticed what I call a "sucking" sound when driving. It is not constant and not noticeable at idle. It is more noticeable when first starting and driving for a while. seems to be getting worse and more constant. 2013 Sante Fe Sport 2.0 ...
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2009 F150 STX with 4.6L 3 valve engine. When first started there is a pulsating sucking noise (sounds like a small vacuum pump at where I work) that has started to come from under the hood. Only does this for about 10 seconds or so and then goes away. The colder the engine is when started the worse it is. I have also noticed that about 10 or so seconds after you shut the engine off you can hear a valve of some sort opening up and a rush of air. I think this is coming from the passenger side by the radiator. Where this sucking noise is coming from? And is this valve release at the end normal? The truck has about 48K miles on it so don't know if this would be a warranty thing or not.
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Going through the drive thru tonight and I heard a weird noise coming from the engine area. Get home and pull into the garage and here a flutter sound when my clutch pedal was pressed down, let go of the pedal no noise. While driving the car around clutch pressure seems fine and no slippage of any kind.
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I've had this car for awhile now and it's always had this weird whining sound coming from the engine.I had the transmission serviced thinking maybe that was the sound and it wasn't. I've taken off the serpentine belt and spun all the pulleys. I can't figure it out, I'm thinking maybe timing chain but I'm not sure.
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I recently started to notice what sounds like a vacuum cleaner coming from the engine at start up, usually in the morning. The sound continues for about a minute or less then goes away. Haven't noticed it after repeated starts during the course of the day. Car runs fine, no CEL's.
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Pulled out of the restaurant I ate dinner at tonight and I lost most power and there's a loud air sucking sound. I felt around all the boots and didn't feel any air, but it was really hot and couldn't feel a whole bunch. It's a 2003 7.3 with 295k. There is a little smoke/soot coming from the turbo area, any chance that's related? I'm perplexed...
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2003 Ford F150 XLT - Truck hesitates (or bucks) as the throttle is pressed. Not from a stop though. It starts / runs fine, but no matter how how fast, what gear, hot or cold, it feels like the fuel cuts out for 1/2 second. Also it is not a specific point in the throttle motion. It does it when it is halfway, 3/4 or fully depressed, but is not consistent. It does happen more frequently now than two weeks ago. I am not getting a check engine light.
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I have this 03 3.0 flex fuel that as of lately (2 months) has developed a whistle when throttle is pressed half way or more.... not sure what or where its coming from..
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Ok, did an intake manifold cleaning on my 99 Accord the other day, and now I have problems...
Long story short, some time ago my car started to have a very rough idle. Took me awhile to find the problem. Turned out the air hose, between the filter and throttle body, had developed a big hole on the underside. So I replaced it and while I was at it used some throttle body cleaner, spraying into the intake manifold chamber. Lot of junk blew out the tailpipe. The car ran much better, but the idle could still be a little rough. I ran it that way for awhile, and finally the other day decided there was probably still some junk in there and it was time to really clean it out. So I took ff the throttle body and intake manifold housing. There was a lot of junk in there! The small intake on the passenger side was completely clogged shut. (I understand this isn't surprising on these cars.) I used a bunch of rags and 2 cans of Valvoline throttle body cleaner and a lot of elbow grease and cleaned it out. I was thinking to myself that whatever I didn't get with the rags flushed through OK, but I didn't want to take the whole intake manifold out.
So I put it all back together. (I took a video before I started, so I'm pretty sure it's all back together right.) But now I have problems. The car starts. It idles fine mostly, but can be a bit rough. But the trouble starts when I put the pedal down. If I do it in Park, well, if I push it quick the engine just dies. If I push it slow, the engine revs then quits, revs and quits, over and over. Similar if it's in gear. If I push it hard, the engine stalls. If I push it gentle, it revs up, but chugs along a bit.
I've run some seafoam through it, thinking it was clogged up with all that junk, and sure enough, lots of smoke comes out, but nothing is improving so far. What have I done wrong?
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2003 F350 6.0 cc 4x4 with 291k... Not sure if I have a problem or not, it happened at a signal light: The light turned green, I pressed the throttle and started to move. As I pressed more, there was no response. Second later it took off and I have had no more problem. What the cause maybe?
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I have been having the dredded EPC light coming on and according to the vag scan its the throotle body. What I need to know is if one off a 2003 2.0 jetta will work on my 2004 2.0 jetta. The number on the side of mine 06A 133 062s is not the same number on the 03. I was told that they must match to work properly.
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So i have been hearing a whistle under acceleration for some time. Normally comes at 1/2 to full throttle. I also have had check engine light for a bad o2 sensor for about the same amount of time(2months). Fast forward to last week. finally replaced sensor. Check engine is gone. Open her up a little on and on ramp, Whistle is still there and the CEL comes back. Have it scanned, and it come back load calculation cross check 17551. I need an sticker so i rest the ecu (no light) and drove it like a grandma 50miles to get the sticker. No CEL. Get sticker. Just to make sure i wasn't crazy i gave her some gas on the way out of the inspection lot, and there is the CEL.
In conclusion, Between the whistle, CEL, and the fact that i drove it 50 miles with out the CEL coming back under very light throttle, and i just replaced the MAF with a new Bosch 2 months ago, i am pretty sure it is some kind of vac leak.
I have a new TB gasket in the mail, but my question is, Is there other places where such a vac leak is common in these cars? Other info on car.
UM tune
evoms intake
HPA downpipes (whistle started after these where installed)
Flapper
no res
74k on the clock
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It's a 96 850 Naturally Aspirated. There is a whistle sound (usually about one second in duration) when I let off the throttle.
Based on what I've been able to find out so far it is most likely at Vacuum line or a gasket somewhere in the intake line. The more common source of this is the Throttle body gasket but that doesn't seem to be the case.
I think the sound is originating on the left portion of the engine, somewhere between the oil cap and the timing cover.
Any good ways to test the vacuum lines or gaskets?
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I've noticed that I don't get a consistent engine roar from my sound generator when I throttle hardly. I get more of a roar when the engine is cold and I floor it. Any other time I accelerate hard it doesn't sound like my sound generator is working.
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So starting with the specs: I have a Stage III+ Golf R with about 39k Miles on it. Stage III+ was added at 17k miles and has treated me pretty good. The car is driven about 3 days a week and has the oil change interval of 3k miles.
Things that I've checked or done recently:
- Cam Follower: Wasn't too bad but seemed like the outer coating was wearing off on it so I replaced it.
- Oil change: Changed the oil about 1 week ago but hadn't driven it since then until yesterday were we did about a 50 mile road trip. (No unusual things noticed)
When we came back home and parked in the garage, I noticed the sound when I turned the ignition off. It was pretty noticeable as you will see in the video. Could I possibly have a bad throttle body on my hands?
[URL] ....
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