Question about 1989 Buick LeSabre
When shifting into revers my car makes a clunking sound and shakes
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: 95 buick lesabre shifts hard
1. There may be a vacuum leak anywhere under the hood.
2. The vacuum governor mounted on the transmission is broken (has a ruptured diaphragm). Easy to replace, has one bolt and a small (one inch) locking plate.
3. Replacement at AutoZone is around $12~~20.
Hope this helps!
Posted on Sep 07, 2009
Your fuse box is located behind the right side of the dash,to the right of the glove box.Here is a diagram to better expalin.If you need anything else,let me know. Thanks,Chuck.
Posted on Mar 10, 2010
Testimonial: "thank you chuck very much worked great now if you can help me with my radio. posted you are great"
It is a sign of a clogged convertor, but i happen to own the same car (with a series 2 3800) and had the same symtpoms going on when i bought if for the wife. Mine turned out to be a Exhaust Gas Recirculation Valve (EGR Valve).
To kind of get a feel for what is going on with the convertor, you can have someone help you but sitting in the drivers seat, with the car running. You go behind the car near the tail pipe. Now have the other person rev it up a little, not to much though. Put your hand but the tail pipe to see what kind of pressure the exhaust has. You can use another vehical to do the same thing to feel what things are supposed to feel like. If the convertor is plugged, the pressure of exhaust coming out will be a lot softer than it should be.
If after checking it as discribed above, if you feel it is plugged, grab a hammer, and bang the heck out of it. This will break up and loosen the clogged part without have to replace it.
There is no really good way to test a EGR vavle without a special computer. Replacing it however, does seem to me as the most likely repair for this vehical. It is located on the top of the drivers side of the motor. It look like a cylinder with a wire coming out of the cap, and is held on by 2 13mm nuts.
Posted on Mar 24, 2010
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