1994 Buick Lesabre Car shakes while driving, idling, or goi

1994 BUICK LESABRE
155,000 MILES • 6 CYL • FWD • AUTOMATIC
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JOSEVELA88
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Its an 3800 V6 GM engine, car shakes while driving, idling, and going reverse. But the Check Engine Light is NOT ON! I changed the spark plugs and the wires, also cleaned the o2 sensor, cat. converter is fine. Please help I know about cars but Im stuck with this problem
Jun 1, 2010 at 10:17 PM
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MMPRINCE4000
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If engine is not misfiring, check motor mounts.
Jun 3, 2010 at 8:23 AM
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JOSEVELA88
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Its not the mounts, but when i turn on the car it doesn't shake or anything, but once its warm the car in park starts to shake little bit, when i shift it to reverse or drive the rpm goes below the 1 rapidly and is having trouble staying on. I put on neutral press the gas and it shakes even worse. When i drove it the last time i was heading home and if i was going faster than 60 one little tap on the gas it shakes really bad.
Jun 3, 2010 at 11:54 AM
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MMPRINCE4000
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Do you have a check engine light?
Jun 4, 2010 at 7:09 AM
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JOSEVELA88
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Check engine light is not on.
Jun 4, 2010 at 3:39 PM
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MMPRINCE4000
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
Well I would suspect convertor, but you say it is OK, and if engine is not missing and mounts are good, then it has to be transmission related.

Possible TCC solenoid sticking.
Jun 5, 2010 at 8:52 AM
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