Quick q recently just got a gli and I've noticed a knocking sound when accelerating and shifting from stops could this be my motor mounts ? I was thinking my tranny or clutch but everything runs smooth and goes into gear fine...
View 1 RepliesQuick q recently just got a gli and I've noticed a knocking sound when accelerating and shifting from stops could this be my motor mounts ? I was thinking my tranny or clutch but everything runs smooth and goes into gear fine
View 5 RepliesMk4 12v vr6 afp. 170k ish. No real mods except a cleaned up bay. Was death knocking LONG before I started the bay. Probably 6k miles. My car knocks/rattles bad in low rpm but promptly stops all noise at 4k and up. Makes the noise in any gear but only when throttle is applied. Even does it when revved up in neutral. No CEL other than one explained later.
Suspecting wrist pins as con rod bearings are brand new (replaced for no reason they were fine) and i removed head and no problems were found. Lifters tick a bit but that's all. Cleaned and put back with new headgasket. Shined up the pistons of course. Timing chains also done. <10k miles on oil pump. I even tried taking the shifter rod completely out and driving to verify if that was the rattle and no change. What could be left mechanically?
I was afraid the noise was preignition because I was getting codes for knock sensor out of range, so I replaced the knock sensors multiple times each, coil pack, wires, new ngk bkr5e plugs gapped correctly, fuel filter and pump. Have ran multiple tanks of premium 94 from different stations as well.
The ecu pulls timing back to 0 btdc and it is still knocking so I just decided that the knock sensors are picking up a mechanical knock rather than pinging. Only thing left is wrist pins or piston slap. Maybe injectors causing a lean condition?
Here's a pic of my car for attention ....
Car was running fine, on the way home from work I noticed it having a loud squeal while accelerating, down shifting.
The car squealed all the way home fine, no power loss really no smoke no anything, I let the car sit for a little, warmed it up and decided to go to drive it around so I could diagnose the problem better.. While doing so now let me describe the sound.. it's like the sound when you go in reverse and back up, that winding sound.. that's what it sounded like.
Back to the story while driving to diagnose the problem more within 5 minutes it made a loud sound like an axle falling out almost on the passenger side of the engine, once I got out I could hear it more and more and looked under the car it looked wet and it looked like oil running down but also could of been something else I'm not sure.. I took a video [URL] .....
The car made it home safe and sound and parked but I don't know if my engine is done. To note I only saw one drip of oil come down while I was underneath of the car but shown in the video you can see where it looks wet was not there before I drove it.
2001 F150 5.4 v8 ... In the past few months my truck has been a bit strange, but in the past few weeks it's gotten to the point I'm nervous to drive it. Usually when shifting around 30-35, the engine revs up and stops accelerating and I have to take my foot off the pedal to make it return to normal. It doesn't do this after I do that, but the past time I tried to drive I couldn't get above 35 and the rpm was in the upper 2000s going at a constant 35. When I stop for any reason such as making a turn, when it shifts it lurches forward and I hear a loud clunk.
Naturally, I've checked all the fluids and fuses and they're all fine. The mechanic I regularly visit insists that nothing is wrong with it.
So, I have a 2005 gti 1.8t, has 110k on it, just did a 3" straight pipe, and while a buddy and I were installing my new pipe, and straight pipe, he said my turbo seals were going bad. I could get the k04 cause it handles better, or get a rebuild kit. Well, today when I give it throttle, it almost makes a knocking sound from the turbo? Not from the front of the car, but at the end of straight pipe, you can hear it in that constant spool. What could this be? Time for the k04. Car has unitronic stage 2, so it gets ran hard sometimes.
View 21 Replies1999.5 gls vr6 ... 113k on the clock
Timing chain hasn't been changed yet .. Has new spark plugs & wires ..
Water pump was replaced & pulleys look fine ..
No CEL .. Yes there's oil in it.
I get a knocking sound at idle and it has absolutely no rhyme or rhythm which makes me think it's not a valve or rod(wouldn't that make a constant noise?). The sound comes from the passenger side floor board. Only happens at idle, and if you rev the engine, it will go away. Even if you don't rev the engine some times it goes away then comes back. Sometimes I hear it when i pull up to a red light real loud & most of the time the engine purrs like a kitten. I even sat in the car and told my dad when it was making the knocking/ticking noise and he went all over the top and bottom end with a mechanical stethoscope & heard absolutely nothing. Am I missing something obvious?
I've got a 2003 Jetta with the 20v 1.8t, today I was driving along and when I slowed down coming into town, my car started making this sound that I can only describe as sounding like a tractor. It sounds like something is rattling under the valve cover.
Here's a video with the sound : [URL] ....
My 2000 Jetta GLS is producing a clunking/knocking sound from the front end (possibly left-front) ONLY while coasting and going straight. It mostly goes away if I turn left or right and totally goes away when I give the wheels engine power or when I brake.
I recently replaced my front-left control arm due to a thrashed rear bushing. I didn't replace the bearing as I didn't have a pickle fork. Not sure if this is related.
There is a knocking sound in the rear passenger side area. Cannot diagnose the cause, what it could be. I checked the bushings for the anti sway Bar but that was not it.
View 1 Replies. MK IV 1.8T .... Title says it all ....
View 14 Replies2004 Jetta GLI - I am getting a hissing sound when accelerating. Could it be the Turbo?
View 2 RepliesThere's this 1.8t gti I'm buying this week from a family member and we've been trying to solve an issue that we ran into. When accelerating the car there is a hissing noise, safe to say that it is air. Then when accelerating a little harder and you feel the turbo pulling you everything seems fine. But a second or so after , the turbo dies off and so does the hissing noise. Then I can let go of the gas and repeat the process and it happens again.
My issue is that I cant figure it out since I Need to be driving to hear the hissing and the turbo cut off. I looked around the threads but nothing really seems to match my issue. No codes either. On top of that I've never owned a 1.8t and don't know much about its turbo.
My 2003 Jetta GLI was making a terrible grinding/knocking noise when i would turn and occasionally make this "Bong" sound especially when reversing. I took it to my local shop and they say my spring in the front left is "either broken or unattached" and that i need spings/struts. I have like 150k miles on this car so the timing is probably right. So my question is, how much should they charge for this? Also, what should i have them order and install? Im not trying to lower or anything like that, OEM or a slight upgrade is what im looking for....
View 9 RepliesA clunk sound coming from the front end. Drivers side and Passenger side. Not really a metal on metal sound. The problem started after coilover install. The sound occurs while braking and accelerating over bumps. So what I've replaced:
-Strut Mounts and Bearings
-Lower control arm bushings (R32 bushings)
-Drivers Side CV axle
What I've checked:
-Tie rod ends have no play
-Ball joints have no play.
-I have no sway bar, so not the sway bar bushings.
-Its not the axle hitting the frame.
Could possibly be the dog bone mount but when I installed the 1' motor mounts I saw no issue but could possibly be the bushing. feel the clunk in my foot as well.
MK4 2000 Jetta 2.0 5speed With Raceland Ultimo Coilovers (Junk)
I got my R flashed about a month ago and decided to do a little run 2 days ago at my local track (BYW I am APR stage 1+) Because I thought the software removed the speed limiter of 125 MPH, I was suprised when car got to 135 and completely stopped accelerating. When I slowed down, it was like the car had no turbo. I would press on the gas and it would barely move.
Idk if it was the turbo or the software. When I stopped I turned off the car and turned it right back on and BOOM, it was back to normal. So yesterday, the same thing happened at 110 MPH and I restarted it and everything was back to normal but now the Engine Malfunction Light is on but everything is working fine.
When I turn on the turn signal it blinks once or twice and stops, but my emergency signal works! Could it be relay??
View 3 RepliesStarts right up, runs fine. No CEL. No warning. No symptoms. It just stops running. It may or may not start right back up, but when it does start back it runs as fine as it was running before it quit.
View 2 RepliesI have a 2001 jetta 5 speed. While driving yesterday, I had trouble shifting into second gear. When I took the car out of second, I would hear a slight popping sound. Shifting into the other gears was fine.
View 2 Replies02J-EGT 5spd. OEM axles.
Sounds like it's coming from the front. I noticed a few months ago my inner passenger CV boot was cracked, put motor mount spacers in which should have hopefully brought that axle up to okay standards. My initial reaction is to say the howling is from that CV joint however it's very odd it only happens after 35 and when I'm not heavy accelerating or deaccelerating- only when holding the car at a constant speed.
This also came after doing the TDI 5th. I notice it a little bit after passing 35mph in 3rd but really can hear it in 4th/5th when the engine revs drop. Am I right in thinking CV boot? Or transmission internal?
Whenever I let off the gas there's a rubbing/knocking noise under the car, the sound will slow down as the car slows down but as soon as i press the gas pedal it starts again, it also doesn't do it if I am stopped and in neutral and rev the engine not sure what this could be?
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