Hard CLUNK when I let off the gas?
Thread Starter
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2nd Gear
Joined: Nov 2006
Posts: 934
From: LaCrescent, MN
Hard CLUNK when I let off the gas?
Well my car has always occasionally done this but now that I have got chipped it seems to happen more often and it is more pronounce. Anyway basically sometimes when I let off the gas the car will jolt and make kind of a clunk noise.What on earth could that be?? Is there ANY possibility that it is just my stock DV going bad from the extra boost? I kinda doubt it... but if you guys can help me narrow it down and figure it out then I can attack it! Thanks!
1st Gear
Joined: Mar 2007
Posts: 398
From:
RE: Hard CLUNK when I let off the gas?
My tip tranny does that to.. but from 4th to 5th.. it will jolt like i slammed on my brakes and make the clunk noise.. but if i am on WOT and switch from 4th to 5th it will be fine.. Im not sure what the problem is either? so i need some help as well
2nd Gear
Joined: Aug 2006
Posts: 1,340
From:
RE: Hard CLUNK when I let off the gas?
your clutch may be going. it could be ur engine getting a bit away from the clutch becuase its almsot gone, adn when u let off the engine jumps down to its speed.
i got a new clutch tho and if i work it right, i can still get that noise, which shouldnt be right because the clutch is rated for 300hp adn i only ahve like 220 ish
i got a new clutch tho and if i work it right, i can still get that noise, which shouldnt be right because the clutch is rated for 300hp adn i only ahve like 220 ish
Senior Member
Joined: Dec 2006
Posts: 1,953
From: Redding, California 1998.5 A4 1.8TQM
RE: Hard CLUNK when I let off the gas?
It may be a big vac leak...when my hose for my boost guage came off the T, whenever I let of the gas there would be a very noticeable bump/kick feeling...when I put the hose back on it was gone, check for vac leaks...do you have a boost guage?
Senior Member
Joined: Sep 2006
Posts: 2,634
From: Lancaster, PA
RE: Hard CLUNK when I let off the gas?
It could be a bad motor/tranny mount causing the engine or transmission to rock excessively and therefore making contact with anotherpiece which causes the unwanted clunking noise. It's hard to say without being there and this is just a guess but try rocking the motor by hand.
Thread Starter
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2nd Gear
Joined: Nov 2006
Posts: 934
From: LaCrescent, MN
RE: Hard CLUNK when I let off the gas?
ORIGINAL: qUaTtRoA4
It may be a big vac leak...when my hose for my boost guage came off the T, whenever I let of the gas there would be a very noticeable bump/kick feeling...when I put the hose back on it was gone, check for vac leaks...do you have a boost guage?
It may be a big vac leak...when my hose for my boost guage came off the T, whenever I let of the gas there would be a very noticeable bump/kick feeling...when I put the hose back on it was gone, check for vac leaks...do you have a boost guage?
I am just really scared that my tranny is going but this all might be leading to a vac leak! I REALLY hope so!
By the way , I am getting my boost gauge in the mail like in a couple days that can help me out too I am sure.
1st Gear
Joined: Aug 2006
Posts: 127
From:
RE: Hard CLUNK when I let off the gas?
yeah mine did the same, i ordered the poly snub mount from neuspeed for $29.99 and it is a whole new car if you dont believe me try it. it took 15 minutes to install and love it!! everyone who drives it is amazed at how well it responds now. the only downfall is at idle you will get engine vibration in the seat of your pants...small price to pay though.
p.s.
hot chick dude!
p.s.
hot chick dude!
Senior Member
Joined: May 2006
Posts: 889
From: NJ
RE: Hard CLUNK when I let off the gas?
ORIGINAL: alias747
HEY!!! Ok I think I might be starting to get down to something! I have another question for you... When I am in TIP mode and I keep in second gear and get on the accelerator at about 2K rpm at about 3K rpm the gear "hesitates" a little bit and then again around 4-5k. If I have a vac leak it could cause a symptom like this too couldn't it?
I am just really scared that my tranny is going but this all might be leading to a vac leak! I REALLY hope so!
By the way , I am getting my boost gauge in the mail like in a couple days that can help me out too I am sure.
ORIGINAL: qUaTtRoA4
It may be a big vac leak...when my hose for my boost guage came off the T, whenever I let of the gas there would be a very noticeable bump/kick feeling...when I put the hose back on it was gone, check for vac leaks...do you have a boost guage?
It may be a big vac leak...when my hose for my boost guage came off the T, whenever I let of the gas there would be a very noticeable bump/kick feeling...when I put the hose back on it was gone, check for vac leaks...do you have a boost guage?
I am just really scared that my tranny is going but this all might be leading to a vac leak! I REALLY hope so!
By the way , I am getting my boost gauge in the mail like in a couple days that can help me out too I am sure.