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#514 of 519 Re: cam shaft sensor [dmrobertson] by parkaveproblem

Jun 25, 2011 (7:40 pm)

Replying to: dmrobertson (May 01, 2007 7:13 pm)

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#515 of 519 Re: need help with electrical problem [ibanezisgod] by imidazol97

Jun 26, 2011 (6:30 am)

Replying to: ibanezisgod (Jun 18, 2011 9:27 am)

1, The odd actions of some of the dash components makes me wonder about the grounding. On leSabres up to 99, there were ground buss connections bundled into the wiring under the plastic door sill and carpet at the front of the door opening next to the A-pillar. I believe they are on both sides. This corrodes for some people. It's covered with wrapping tape. Clean the connections, coat with dielectric or something to protect and reinstall.
 
Some people could hit that area with their heel and change the connection in the ground buss due to the corrosion. You might see if that affects it.
 
Are you in an area with lots of rain or snow so that moisture (slush with salt) gets dripped there as your feet come into the car over the years?
 

 
2. The weak power when it won't start that causes relays to not work sounds like connections at the battery or grounds under the hood area. The battery has double or multiple positive cables. Pull those apart and look at the lead spacer in between for corrosion. Those are available new for replacement. Also cut back into the copper cable and pull the plastic back tosee if the cable has been corroded by battery acid and is partly eaten up.
Check the lower ends of the positive cable at the starter. You might want to remove ground wire from battery first to prevent arc overs if you remove and retighten connections.
 
3. The starter might not be making connection. Locate the starter housing under the front of the motor. Have someone tap on it with a hammer while you turn the key to crank, especially when the VATS system appears to not be allowing engine crank.
 
Does the security light flash on and off after you try the key 3 times and it fails to crank? That's the VATS system. When you insert key and turn to ON, there should be a short flash of the security light as the TDM reads the code resistance to match to the original the first time it was started at the factory. does the light stay on meaning a mismatch? Or does the light go off after turning the key until the third try to crank?
 
4. 1994 and 1995 models in leSabre have the most failures and anomalous problems due to the computers. If someone has one you can switch with yours, that would be good. I've read a lot of posts where people chased problems that would come and go giving all kinds of symptoms and codes at times. Then they find the computer replacement fixed it.
 
They are relatively cheap for replacement. I believe you transfer your chip from the old one to the new one. But you are getting other symptoms than just codes or poor running at times or dying. I think you have other problems or combinations, especially since the car has sat for a time.
 
The Park Avenue and leSabre were so similar they were combined into the same factory service manual for 1993 and I assume up to 1995 when they changed to the newer, Riviera/Aurora body and chassis derived automobile.
 
Good luck.

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#516 of 519 Re: Service Stability System [lnaylor] by pilot24

Apr 14, 2012 (6:04 am)

Replying to: lnaylor (Apr 30, 2008 11:30 am)

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#517 of 519 Re: Service Stability System [imidazol97] by pilot24

Apr 14, 2012 (6:21 am)

Replying to: imidazol97 (Apr 12, 2008 6:41 am)

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#518 of 519 2002 Buick Park Avenue humming noise by randoldj

Sep 03, 2012 (5:21 pm)

Replies to this message:

• imidazol97 (Sep 03, 2012 7:01 pm)

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#519 of 519 Re: 2002 Buick Park Avenue humming noise [randoldj] by imidazol97

Sep 03, 2012 (7:01 pm)

Replying to: randoldj (Sep 03, 2012 5:21 pm)