Vibration at idle - Page 2

interested! · 06-11-2012, 01:13 PM

Quote:

Originally Posted by CarpeDiem

2nd owner- bought it in 2000 w/ ~ 20K miles.
Yes, vibration reduces substantially when I shift to neutral. Have never checked transmission fluid though I would have expected that mechanics have. "Tooth on starter ring gear on flywheel"... all Greek to me! I guess I can suggest that to a mechanic?
It occurs to me that sometimes vibration seems to worsen when I go from low gas tank level to a fill-up. Then again maybe I'm dreaming.

Hi again ! the flywheel has a ring of teeth around it fanning outwards ( like daisy petals ) this is the means that the engine is turned by the starter motor to start the engine . If one is missing or chipped ( part of the tooth is missing ) , the flywheel is out of balance by one tooth / chip - by diameter of the flywheel and the crankshaft will vibrate , this MAY be the cause , and the fluid in the torque converter may be compensating by moving at greater speed to offset the imbalance , it's only a theory but may also be worth checking by getting underneath the car and removing the plate at the rear of the engine / transmission and turning the crank 360 degrees to check for a missing tooth / chipped tooth .

pwpanas · 06-12-2012, 06:35 PM

Quote:

Originally Posted by CarpeDiem

2nd owner- bought it in 2000 w/ ~ 20K miles...

Has it been vibrating like this since you bought it w/20K miles? If not, when did the vibration start (and did it follow any maintenance or unusual event you can recall)?

CarpeDiem · 06-13-2012, 08:18 PM

No the vibration started about 3 years ago and I had several shops try to diagnose the problem with no luck. Nothing changed that I could point toward as a cause.

pwpanas · 06-26-2012, 01:17 AM

Quote:

Originally Posted by CarpeDiem

No the vibration started about 3 years ago and I had several shops try to diagnose the problem with no luck. Nothing changed that I could point toward as a cause.

Again, please post up the results of the compression test. At this point, that seems to be the most appropriate next troubleshooting step.

Mk2guy · 06-26-2012, 04:49 AM

It could be a clogged injector as well. Or maybe a bad one. In reality it could be anything. But the moderator is right. without test results of com, tests, injector sets and using all the diagnosis tools available it is impossible to diagnose your car. If you told us what test were performed by the mechanics that have already looked at the car. That would be helpful. Very helpful.

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06-13-2012, 08:18 PM	#13
CarpeDiem Stock Join Date: Jun 2012 Location: Maryland Posts: 6	No the vibration started about 3 years ago and I had several shops try to diagnose the problem with no luck. Nothing changed that I could point toward as a cause.

06-26-2012, 04:49 AM	#15
Mk2guy Stock Join Date: Jun 2012 Location: In Worthless Idaho Posts: 22	It could be a clogged injector as well. Or maybe a bad one. In reality it could be anything. But the moderator is right. without test results of com, tests, injector sets and using all the diagnosis tools available it is impossible to diagnose your car. If you told us what test were performed by the mechanics that have already looked at the car. That would be helpful. Very helpful.