Golf/GTI VI :: Strange Knocking Noise From Motor - RMP Gauge Dipping Then Going Back Up
Nov 30, 2010
My girlfriends 2010 Golf 2.5 is worrying me. We went on a weekend vacation to Boston so the car sat for 3 days. I go to turn it on tonight and it just immediately stalls. I was like okay thats weird so I turn it back on and instead of stalling, the RMP gauge keeps dipping and then going back up and theres a strange knocking noise, so I turn it off and then decide to try again. Same thing happens so I go to open the hood and the noise is pretty loud. I noticed a strange smell outside the car while the motor was running, but I can't really explain it. So I turn it off for about 2 minutes and then start it again and its just back to normal, I'm so confused. I drove it about 5 miles and it seems fine, aside from idling slightly rougher than normal. What this could be?
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The R has 48K miles on it. The other day i realized after driving it, a choppy noise coming from almost directly under the spark plugs. As the car was cooling down while still on the noise stopped for a few seconds and then started again. Any clue of what this might be?
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Okay just installed a newer 24v into my existing 24v VR6 GTI both with 135k. I have heard the motor run before it was pulled and sold to which sounded fine. Upon receiving the motor I put new timing chains, guides, headgasket and new gaskets all around. The timing was right on the mark and I tightened everything up to torque spec and I'm getting this noise which sounds like it's from the timing cover area. A code just popped on which I'm going to scan as soon as I get my hands on one. The car was running great for about 20 minute and I shut it off then turned it back on about 5 minutes later and experiencing these scary noises. I tried pulling each individual coil with no results to get the noise away. What could this be?
[URL] .....
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When I got home from work last night i discovered i had this strange noise coming from my gs430. not sure what is it but there was some smoke coming from my passenger side of the motor but I couldn't see what it was exactly due to the night hour. please view the short video clip to see what it could be.
What is this noise? - YouTube
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The truck always made a few strange noises after shutdown, but this is new and annoying.
Here's the scenario: Truck is warm and no CEL. A few seconds after shutdown, I hear all the normal(?) noises and then a noise that sounds like a vacume pump running starts and continues for about 20 to 30 seconds. Cycling the key, but not starting the motor will cause the noise to happen again and again on each key on/off cycle.
The noise seems to be coming from the top front of the motor. Could this be fuel pressure bleeding off? Is there a check valve that is maybe not doing it's job??
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I've had this strange knocking noise ever since may coming from my motor. I thought, it might go away if i push the car a little. But it's been 6 months, and the thing is still going hard. What I'm experiencing is kind of a knocking noise, something akin to marbles being shaken up in some kind of jar, and it is only at partial throttle. Starts at 2000 rpms and goes all the way until redline. What it could be? Engine sounds perfectly fine at idle, power is still there. MPG's are the same... I've also read a couple threads that indicate that it could be my intake manifold, I am really not that good with cars, shameful but i admit.
Btw while i was browsing found a repair manual on the net [URL] ....
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The other morning I went out to the garage and heard a strange noise coming from the rear (underneath the 3rd row seating/storage area) of my GX460. It sounded like a pump or something running continuously. I was in the garage for 10 minutes and the noise had started before I entered the garage and continued after I left. When I went back out to the garage 3-4 hours later it had stopped so I am not certain how long it was running for. I previously owned a 2006 GX470 with the rear air suspension and this was not the sound that was coming from my new GX. The car had not been running or driven in over 8 hours and I am at a loss as to what it could be. I figured I would check here first before delving into the 700+ page owners manual to troubleshoot.
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I have an 04 F150 Lariat with the 5.4. I get alot of noise out of the top of the motor. I hear lots of stories of sludge issues, is that the problem or do I need to have the motor gone through? the knock is not horrible but when the motor is warm the noise is pretty apparent!
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I have a 2000 celica gt... My motor is making a loud knocking noise at all time.. The other day it completely stop working. It started back after a couple of attempts... I think I need a new motor but idk... What kind of motor will fit and how much or what can I get for the car if i sale it..
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Sometimes when my car as sitting at an idle in either drive or reverse the motor starts to make a knocking noise from the back of the motor towards the firewall side on the top of the motor. I have a video. The car has 114k I just changed the oil I thought maybe it's low but it's not and hasn't moved since it was changed.
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I have a 2015 Sonata 2.0T limited, and there is a noise coming from the back, driver's side, after shutting off the motor. I've taken it in 3 times for this, and each time they say nothing is wrong; but, I've driven a lot of cars and trucks, and I've never heard a noise like this.
I'm guessing it's some kind of gas tank related valve that's closing, but it's making a very loud noise each time.
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I have a 2007 elantra. I drove it for a while, then my ma needed a car (her tercel was a little unsafe) so I traded her. She loves the car, but as sometimes is the case, her dealer is not very nice. She has a severe side to side knocking noise in the steering- can be easily duplicated by sitting with the car idling and turning the wheel back and forth, even a little. Doesn't correspond with driving over bumps unless the wheel is inadvertently turned by the bump. If the suspension is unloaded (front wheels off the ground), noise disappears. No EPS lights, no codes in any system.
Listened with a stethoscope inside the car- not that loud through column within car. Inner and outer tie rods are tight, noise is not heard loudly with stethoscope through struts, upper mounts, lower arms. Under the car with loaded suspension (rhino ramps), noise is deafening in the rack, with a stethoscope. Dealer told her it needs a steering rack, I definitely understand why they would say that as the noise is clearly audible through the aluminum housing directly below the entrance of the column shaft into the rack. Only TSB I found was for a worm shaft flexible coupling, but the TSB says this is bump related.
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I have a 2010 Santa Fe V6 2WD. When I rock my steering wheel back and forth, I hear a knocking sound when engine is off. Sounds like maybe the steering gear box has play in it.
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2005 Jetta.
I had the AC on and after an hour or so the fan made this dieing noise and crapped out. I shut it off and turned it back on and almost no air came out - even when the AC was not engaged - it just made a weak whining noise.
10 min later I turned it back on and it worked fine, then did the same thing 20 min later. This cycle keeps happening now, what could be causing it? (The compressor is brand new, just had it replaced a week ago, so I don't think it's that).
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So this morning I was in rush hour traffic, stopped at a traffic light when all of a sudden, I get the bong that signals "refuel" I have just under 1/2 tank, though. Glanced down at the fuel gauge to see it drop down to E and then a few moments later back up to just under 1/2. All the will car was running and seemed fine otherwise. The refuel sign stayed on though ...... even when switched off (while MFD was still on) Restarted the car and refuel message was no longer displayed. What could this be? fuel pump on the way out?
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Last night when I went out into the garage, I heard the sound of a small, lower RPM electric motor. After walking around a bit, I found it coming from the underside of the back of the Camry. I got in and turned the key to the "on" position and it went away. The car had been parked for about 5-6 hours. I've never heard this noise before.
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I'm trying to figure out this noise I'm hearing whenever I accelerate. I can't tell if it's the turbo or something else. It doesn't have the smooth turbo spool sound like my mk4 GTI so I'm wondering if something is wrong or this is just how the car is....
It sounds like some kind of air induction but a little clangy at the same time. I'd try to record it but I don't think my iphone would pick it up.
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When the car is in neutral or in gear at a standstill there's a noise right around 1000rpm that sounds like a serious rattle or knocking. It sounds as if the car is puttering out. So essentially, I give it gas to around 2000 and then take my foot off and on its way back to idle it will putter at 1000rpm.
If the clutch is fully depressed or fully disengaged the noise is no different. I haven't noticed the noise in any other situation other than when the car is stationary but it's still a very disconcerting noise and likely just being drowned out by other noises when moving.
Does this sound like something engine related or could it be DMF chatter? Could I possibly pick up on an issue by running tests or logging with VAGCOM?
Some background on the car:
-Modified with APR Turboback and Stage 1/2 file 1.3 (the noise is present with and without tune file)
-I run 93 only
-Most miles are highway miles, currently sitting at 23k miles
-I don't notice any issues with shifting, albeit some slipping when tuned in 6th gear (no slipping when using stock file)
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So as I was driving my R32 home today, and as I came to a stop, it let out a crazy groan/noise.. It continued even as I was stopped. At first I thought it was the brakes just making noise since it was raining. The pitch of the sound was much different than a brake squeal too..
The only thing I can think of is I parked overnight under a carport, which that and the driveway is a decently steep grade.. Maybe its e-brake related? However I just changed my e brake cables.
The car drives great still. I drove 60 miles then it made that noise. Also I checked on a dirt road to see if my haldex was still working.
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So for the past few months my car was making a strange noise under my car, it turned out it was the dogbone bolt that stretches to the bottom part of the transmission. Some how it got loose and was literally hitting my transmission. So we tried bolting it back on and won't screw which was kind of scary it had some type of play. Do I have to get a new 02m for a little ass bolt, do I weld it, or is there a subframe piece I can buy to replace the Broken part of the transmission.
[URL].............................
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Just bought a '15 Golf TSI S/sunroof with the 5MT (night blue, for the curious). Anyway, I've been getting a strange noise that was not present on the test drives, but that I first heard driving home from the dealer about a week ago. Since then it has happened intermittently, and not reliably enough that I've brought it back to inquire about. It is hard to describe, but sounds something like a whir and whine together. Typically it starts when I am in gear -- 4th, usually, though I can't figure why that would matter -- and then take my foot off the gas. If, however, I put the clutch in or put my foot back on the gas, it won't stop right away. It does stop when the car comes to a full stop. I'm beginning to suspect that it happens more when the car and/or the day is very hot. The times I've heard it most often, it has been over 90* outside, and the car has been driven for at least about 10 minutes.
I drove around for 25 minutes this morning and it finally did it, so I hit the sound recorder on my iPad. For reference, this morning it was about 81* out.
Here's a video link to it. It occurs at the 1:13 mark, if you want to skip ahead, but it's pretty faint over the background hum. The sound is clearer on the actual recording when I play it back on my iPad. [URL]........................................
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