I have an 89 VW Jetta GL 4cyl 8v. Just had a used transmissi...

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Question by jeff
Submitted on 9/28/2003
Related FAQ: rec.autos.vw [W] INTRO, FREQUENTLY ASKED QUESTION (FAQ)
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I have an 89 VW Jetta GL 4cyl 8v. Just had a used transmission installed and the mechanic replaced the motor and transmission mounts. The car now has noticeably more vibration at idle and when the AC is turned on the whole car shakes badly at idle. when I accelerate above 1000 rpm the vibration lessens alot. Any ideas would be greatly appreciated. the car runs fine other that the vibration.

Answer by mikey58
Submitted on 1/31/2004
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check you exhaust mounts and gasket

Answer by baby blade
Submitted on 2/1/2004
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its the motion shaft in the box its self gets distorted wen removed n can collaps

Answer by evan
Submitted on 7/14/2004
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if its more of a rattling its definitley the exhaust mounts cause i had that same problem a low rpm rattle that disapears after 1k

Answer by melvin
Submitted on 9/8/2004
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The carburator or injecector vacumn switch needs to be checked it probably does not shoot out when the a/c is turned on,thats why the engine shakes.its function is to inrease the running of the engine when the a/c is turned on so as to create a balance from the effect of the a/c compressor on the engine.it is more noticable when the car is an idle mode.u'll also need to increase the rpm level whether a/c or not but with the a/c and no vacumn u wont get the rpm balance level u need because if you increase the rpm when it a/c is off it'll be higher than usual.So u need the vacumn swithch to work for the a/c.

Answer by josh
Submitted on 2/8/2006
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its the rods one most be bent i had the same problem in my 89 lambo

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