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Registered
Join Date: Nov 2000
Location: Tampa Bay
Posts: 774
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My car vibrates at idle
Well whenever i turn the car on or stop at a stop light i hear these little vibrations....my mirror starts vibrating and i can here my dash rubbing up against something when vibrating. THe vibration is not to bad and once i put the accelerator on just lightly it stops vibrating....... Is my problem Engine mounts?
------------------ 85.5 Porsche 944 |
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03-10-2001, 08:13 AM
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Join Date: Oct 2000
Location: Corona, California
Posts: 1,132
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yup
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03-10-2001, 08:43 AM
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Join Date: Jan 2001
Posts: 891
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check your idle rpm too, could be too low.
If a car is able to run at low rpms and not stall, that means one thing: change your cam  The 924 cam is ridiculous, my car can run at like 300 rpm. Too bad they don't make good cams, a grind isn't enough. |
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03-10-2001, 11:26 AM
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Join Date: Jun 2000
Location: Michigan, USA
Posts: 28
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If the vibration goes away ~1200 rpm, it is most likely the engine mounts...the old style engine mounts were hydromounts...which would leak the fuild and then your engine can ground out agains the crossmember, which can cause vibration in the rest of the car...you might also notice some excessive harshness over certain road inputs because the engine is very heavy and when it is jossled around without isolation, you will feel it...
sounds like you have already noticed that the vibration goes away when you give it a little throttle...next time you are in the car, see if it goes away ~1200 rpm my car (85.5 951) had the same problem...after I replaced the engine mounts, I noticed that the vibration went completely away, and the ride was also a bit more civilized... good luck |
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03-10-2001, 12:55 PM
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Registered
Join Date: Nov 2000
Location: Tampa Bay
Posts: 774
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yeah it is at about 1200 rpm....Thanks a lot
------------------ 85.5 Porsche 944 |
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03-10-2001, 08:22 PM
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Also check to see if your idle screw is there! Mine has been gone and I just replaced it, and no more vibration at idle! I had the exact same problem. Might be a cheaper fix =)
------------------ ßrªÐL£µ 88' 951 2k VW Golf 1.8L TURBO Reluctantly crouched at the starting line... |
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03-11-2001, 01:50 AM
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Join Date: Feb 2000
Location: Athens Ga
Posts: 184
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Also keep in mind that these cars will SHAKE no matter what. When I first got my auto it had a broken mout shook like crasy at idle. Now with 2 new mounts I still has some jitter at idle @900rpm. I swear it becomes smooth as silk if I bump it up to 901rpm's. Just something I live with. I wish Porsche made the 944 a 5 cyl.
[This message has been edited by Ven (edited 03-11-2001).] |
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03-11-2001, 08:46 AM
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