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Buick Park Avenue Maintenance & Repair



  • Thanks for the info. It was a great starting point. We did check the crankshaft sensor and found it to be OK. I was also told sometimes the waterpump can leak and short this sensor out, but we found no leaks.
    However, something I didn't think about was checking the fuses. I had a bad key chip and thought the problem might be in the ingnition switch even after buying new keys. What I found was that over time the fuses had vibrated part way out with the ingnition fuse the furthest out. These were tightened and so far I have had no further problems. Thanks again.
  • fohlenfohlen Posts: 4
    the 95 buick was missing so took it to repair place and they replaced plugs wires fuel filter and flushed trany fluid and cleaned the fuel injectors. it has 57,000 original miles on it and it was getting 20miles to gallon after tuneup it now get 15.79 per gallon or 16 miles only what could be wrong? Thanks shirley
  • fohlenfohlen Posts: 4
    Took the buick back to auto repair and they checked it out because it was losing 4 mile per gallon after tuneup and they said they didnot look at the update bulletin, so this time they did look and say they think they found the problem after the tuneup and fixed the problem. Too soon to tell.
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049
    Did they say what had been done wrong or what was missed that would cause a drop in mileage? I am finding that hard to believe that there was something in a bulletin...
  • how do you get to the fuel pump is there an easy to take the tank out?

  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049
    There's an access cover in the trunk under the mats.
  • I have a 00 park ave with 110,000 miles. it drove fine untill last night the thing just started sputtering and then died out. It still starts up but does the same thing unless the rpm's are up high. the wierdest part about it is that the check engine light didn't come on. I tried to diagnose it anyways but it came up with no codes. I have replaced the spark plugs and wires, the coils looked fine,checked the pcv valve and that also looked fine. checked every vacuum hose that I could find and cleaned most of the sensors. I have also replaced the fuel filter and put in some fuel injector cleaner but it is still doing the same thing
    any help would be greatly appreciated!!!!!!!!!!!!!!!!!
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049
    The only thing to try that you are able to do yourself without a fuel pressure gauge is to remove the wires from the MAF sensor on the throttle body. Disconnect that leads. And start the motor. See if it will run without it connected.

    My other thought would be fuel pressure. It's a little young in miles and years for the crankshaft position sensor or camshaft sensor to be bad.

    Note that pulling the wires for the MAF sensor will turn on the Check Engine light.

    Another thing might be to remove the IAC, idle air control, also on the throttle body. See if it's stopped up with black, wet soot.
  • Well, all things considered it did work for awhile since my last post. Now my 2000 park avenue is dying again while driving. Sometimes in cruise - sometimes not -sometimes only once in 300 miles - sometimes 3 or 4 times in 50 miles. I had the fuel pressure checked. It is steady at idle and running down the highway. I also had the computer hooked up and no codes showed bad. The crankshaft sensor showed good. I have tried 3 different keys and the same happens. This happens with a full tank of gas or not. The car justs dies like the key would shut it off. I have to stop, put it in park, shut off the key, and then it will start right up again. Again I would appreciate any ideas. Thanks much. Jake
  • Hello Jake,

    Sorry to hear it is still giving you problems. If you google a bit, you'll find many mechanics get a lot of mileage out of this problem until the crank position sensor is finally replaced. I'm not sure how the mechanic was able to test a part that is only intermittantly failing but was hesitant to tell you that for fear of sounding too negative and bursting your bubble.

    I have the factory service manual and I can't find a section in it that tells how to test it. It does list a group of components to test: wiring harness, plug wires, misrouted wires, poor connection, ign coil. There is a replacement section tho.

    Before you spend too much on other parts, or trips to the mechanic, I still recommend having the CKP replaced. It really is a very common failure, and fairly inexpensive to fix.

    This engine is shared with many GM cars and the problem is not unique to BPAs. Look at the top solution to this problem in the Chevy Impala: html

    Thanks for updating, hope you get it fixed soon! :)

  • Hey imidazol97,
    Thanks a million, it ended up being the MAF sensor. After unpluging it the car ran beautifully and I was able to drive it home. I was going to take it out and clean it to see if it would start working properly again before dishing out the 150 bucks for a new one. kinda wierd though, even with the sensor unpluged the check engine light still didn't go on. Anyways thanks again for the help!!!! :shades:
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049
    You might check the connections to the ISC which is the unit under the three coils. The contacts occasionally don't (CONTACT) and then restart.

    I just read another problem car with some miles that would die after running for a while because the fuel pump was heating up and not working right. The description was that it would start right back up. I assume that's because it cools quickly when it's not running. My suspiction was that it was a contact problem but either way the fuel pump fixed it. The only added part was that it sometimes would act like you were trying to give too much fuel. That was due to reduced pressure affecting the spray pattern of the injectors when the throttle body was opened up.
    The one thing missing is yours seems to quit right now. No sputter. No poor running. Just quits.

    A CPS, crankshaft position sensor, often gives trouble restarting. Cooling them with a splash of water onto the sensor at the edge of the crankshaft balancer will sometimes speed up the restart. But others have had problems and the car restarts right away.

    Myself I would look carefully at the contacts on the Ignition spark control. The ground wire is black if I recall the post.
  • The drivers door on my "91" Park Ave will not lock from the inside or outside.
    Anybody have/had this problem?
  • Re post 183.
    The coil pack on mine was the problem. Runs great now.
  • How can I reset the anti theft device in my 1992 Buick Park Avenue?
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049
    can they be reset? Maybe by disconnecting the battery for a good while to completely clear the computer of current memory. Be sure to turn off the HVAC before you disconnect it.

    What is the symptom?
  • Hello I am in a world of hurt. Recently I was rear ended and my bumper assembly collapsed because the energy bars and upper and lower impact bars were rusted. Fortunately all the damage to my vehicle was confined to the bumper area and did not damage the quarter panels or frame. The problem is when I took my car to the repair shop they say they cannot find any replacement parts for the car. GM has stopped making the rear bumper cover (the plastic wrap around assembly). I believe the repair shop because I did a search myself and came up empty also. Does anyone know of any place where I may find what I am looking for.
    rear bumper
    bumper cover
    upper and lower impact bars
    right and left energy absorbers
    upper molding
    lower bumper cover support

    This car is in great shape both mechanically as well as inside and out to be just written off as a loss The engine and transmission are in great running condition.
    thank-you for any info you may have vanman391
  • imidazol97imidazol97 Crossroads of America: I70 & I75Posts: 18,049 (recycling yards) a very interesting way to search for things.
  • Thank you for the great info on finding parts for my "Ultra" however I believe I have found what I need from a local salvage yard. I will know in a couple of days when the parts arrive. Now I need to have them installed.

  • help me please! the fan will run for the air conditioner, but the other 2 fans will not run that keeps the motor cool! can any-one tell me what this might be? i hit the fuse cover a couple times and it clicked right on, tried it again today it didn't work. i feel there is a short somewhere. think maybe it might be a relay switch? what else can i try? help me please!<img src="
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