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

Tiny
JOSEVELA88
  • MEMBER
  • 1994 BUICK LESABRE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 155,000 MILES
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
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Tuesday, June 1st, 2010 AT 10:17 PM

5 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
If engine is not misfiring, check motor mounts.
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Thursday, June 3rd, 2010 AT 8:23 AM
Tiny
JOSEVELA88
  • MEMBER
  • 3 POSTS
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.
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Thursday, June 3rd, 2010 AT 11:54 AM
Tiny
MMPRINCE4000
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Do you have a check engine light?
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Friday, June 4th, 2010 AT 7:09 AM
Tiny
JOSEVELA88
  • MEMBER
  • 3 POSTS
Check engine light is not on.
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Friday, June 4th, 2010 AT 3:39 PM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
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.
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Saturday, June 5th, 2010 AT 8:52 AM

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