Last post on Sep 03, 2012 at 6:01 PM
You are in the Buick Park Avenue
What is this discussion about?
Buick Park Avenue, Sedan
#514 of 519 Re: cam shaft sensor [dmrobertson]
Jun 25, 2011 (6:40 pm)
have you tried the mas airflow sensor? Had the same problem with mine and that fixed it. The way to check it is to simply unplug it and start the car. It will instantly run better if that's whats wrong. It is located on the drivers side in the back of the engine. Good luck
#515 of 519 Re: need help with electrical problem [ibanezisgod]
Jun 26, 2011 (5:30 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.
#516 of 519 Re: Service Stability System [lnaylor]
Apr 14, 2012 (5:04 am)
Did you ever find the solution to resolve the service stability service light ?
#517 of 519 Re: Service Stability System [imidazol97]
Apr 14, 2012 (5:21 am)
Did you get a resolution to the Service Stability System problem?
#518 of 519 2002 Buick Park Avenue humming noise
Sep 03, 2012 (4:21 pm)
I have a 2002 Buick Park Avenue. Recently, it has started to make a humming noise that increases in pitch with an increase in road speed. It is noticeable at all speeds above 10MPH. I have used a laser thermometer on all of the hubs and there is no real difference in hub temperature after a long drive. The front hubs run a little hotter than the rear ones, but side-to-side, the temperature readings are consistent. I have tried the swerve test, with no difference in sound by swerving left or right. I have jacked up the car and shook all 4 of the wheels and found no noticeable play in any particular wheel. I actually magnetically attached a small video camera to each of the fenders and made videos of each of the tires in motion and there were no audible or visual differences in the videos. The car has 132,000 miles on it. I have had each of front wheel bearings replaced since I have owned the car. The left one was replaced about 4 years ago and the right one 2 years ago. NAPA parts each time. I have never replaced the rear wheel bearings. I put new tires on the car about 2 months ago but did not notice the noise then. The traction light and the ABS light have been on since April but I have yet to investigate this issue. Any help in diagnosis would be appreciated.
#519 of 519 Re: 2002 Buick Park Avenue humming noise [randoldj]
Sep 03, 2012 (6:01 pm)
Tell us about the tires you put on. Brand, tread type, speed rating, and mileage guarantee. I wonder if your tires are a higher speed rating than original and make a noise with harder rubber. That will be possibly true with higher mileage tires. Or just a coarse tread pattern...
Have you checked air pressure and set it to the door jamb recommendation to test?