Question about 1992 Buick Park Avenue
What you have is a lock up solenoid failure,. The trans has a solenoid that locks up the trans torque converter when you reach certain speeds and unlocks it when you slow down or touch the brake. If that solenoid fails it will leave the torque converter locked up so it acts just like a standard trans when you con't put in the clutch.
It can be replaced and you can try to release it. Put in a jar of "Lube Guard" the red one for GM's and then let it run for a while. Then just as you put it into gear give it gas, it will lurch and if you are backing up to get it out it will stall when you come to a stop, but then put it in drive and do the same thing. Drive it around for a while and if it does not change then you will have to have the Loc-up solenoid replaced. Not a real easy job, but it can be done with out removing the trans
Hope this helps.
Posted on Oct 01, 2009
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Posted on Jan 02, 2017
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