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Search: Posts Made By: robcarnut
Forum: V6 Tech   01-13-2018, 06:24 PM
Replies: 3
Views: 1,703
Posted By robcarnut
motor and trani mounts are brand new. smoke...

motor and trani mounts are brand new.
smoke test did not come up with any cracks in intake manifold.
I can feel the vibration in my legs when leaning over the front of the car when the idle has...
Forum: V6 Tech   05-15-2017, 01:11 PM
Replies: 3
Views: 1,703
Posted By robcarnut
Engine Vibration at idle

2000 Pontiac Firebird, 3800 V6, has engine vibration at idle-750 RPM. Apply gas, motor smoothes out. Come to a stop at a light, idle comes down, vibration returns. Had vacuum checked, fine. Good oil...
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