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Pontiac Bonneville General Maintenance and Repair



  • ayratayrat Posts: 26
    Drove from nj to az my 1992 SE. Stuck in Denver, CO, as bearings/inserts, reportedly broken. Got knocking noise from the engine...Was suggested to look for another car here, rather than fixing it (replacing engine with junk one plus labor $1,500 plus no guarantee it will run), perhaps will look for used import pickup truck. Anyone willing to purchase it for parts here in Colorado? Original Aluminium wheels and BFGoodRich tires(20K only) , almost new OEM windshield, just replaced brake booster with rebuilt one, cranksensor 1 month ago, oxygen too. Clean interior, nice chairs. Let me know. Dent in the driver's door and cracked LH mirror. It was a comfortable car...
  • scylarkscylark Posts: 5
    Intermittently on normal turns, and or hard acceleration/braking I hear a popping sound that sounds like its coming from multiple areas, i.e. pillar between doors on drivers side, shock area on drivers side, and middle of the rear end. I have had it in several times and nothing turns up wrong. It is not an interior noise as I have taken the trunk and most of the back seat area apart, and it still does it. I can not reproduce the sound when the car is sitting still. I saw a similar post in message 534. Any answers? This is a 2002 Bonneville SE.
  • idntnvuidntnvu Pulaski, VirginiaPosts: 254
    Hi all, "the user formerly known as 1badsidekick" here...the parent's '93 SSEi is having a fit again. My mom took it to Gatlinburg TN this past weekend, and on the way up into the mountains, it overheated, and wouldn't start again for a while. She finally got it restarted, and didn't drive it the rest of the time they were up there. She and her sister got in it to come home yesterday, and the thing was heating all the way home (about 4 hours, 230 miles). She kept the climate control on 90 the whole way, and considering the temperature outside was 87, they were a little warm. Now, the question is, what is causing this? The fans at the radiator seemed to work intermittantly, but they did work. I know the engine has to reach a certain temp before they kick in. What else could this be? Thermostat? Water pump? Any help is appreciated. I'm going to try to get it to the garage today for them, but I'd like to get it in there and halfway know what to expect, rather than going in there with a blindfold on. (Even though the mechanics at our garage are good, they tend to "throw parts" at the problem, rather than knowing immediately what it is.) Any advice??
  • chevydude2chevydude2 Posts: 36
    Got a '98 Bonneville SE -- great car -- 135M and minimal problems -- still gets 28-30 MPG on the highway... Guy that works for me had his car vandalized the other night -- kids put SAND in his tranny fill tube, gas tank and Oil fill pipe -- All while his ALARM was set... So, I checked the factory alarm in my Bonneville .. armed it with the drivers window down and reached in and OPENED THE HOOD and never set off the alarm. Any idea on a fix? Could a local car alarm shop install a hot switch on the hood that would tie in with the factory alarm?? Try yours and see what it does...I was AMAZED...
  • mlm4mlm4 Posts: 401
    The factory alarm is intended to be a theft deterrent system, not a vandalism deterrent system. All it does is lock out the ignition system and honk the horn when someone forcibly opens a cabin door. An alarm shop could install a better system with motion sensors, glass break sensors, and switches for the hood and trunk, etc.
  • daver9daver9 Posts: 1
    my 2001 has developed bare spots at the bottomcorner near the rear door closing. I thought it was weird becuse both sides were the same. car has only 30k on it.
      I talked to someone who has the same yr and his was the same. He is getting his repaired by the same dealer that I bought mine from. They told him all he had to do was pu on the pontiac "mud" flaps and they would paint that area. they told him they had several people complain that there bonneville was doingt the same.
      I called the dealer and they said, at first, We have not heard anything about anyone else having problems and i sounded like a defect. When I gave them the name of the guy who was going to get his repainted without any hassles, the played dumb and said stop by and we'll take a look at it.
      My wife stopped by today and the guy's car that was to be fix was sitting outside ready to be picked up. my wife said it looked like they patched just the area where the paint was of without sanding it. It was uneven in the spot that had been bare. She went inside and went through the same bull..
      the same that they have not had any complants about the bare paint spots in those certain areas. She then said.. well... there's one right out side that you just did! the lady said which car? & my wide NAMED the guy who owned it.
      they again backslid and went on to tell her that they have have several people complain about that area losing paint prematurely.
      now we have to take it back again when the service manager is there.
      SO If your newer style have paint coming off just behind the rear doors, make sure you get it to a dealer so that this problem is recognized and something is done for everyone without going through a HASSLE. If you need pics of the area that is in question, email me at , I will snap a few and send them.
  • idntnvuidntnvu Pulaski, VirginiaPosts: 254
    In case anybody cares, we cancelled the appt to get the SSEi looked at for the overheating problem. Flushed the radiator and replaced antifreeze, and so far so good, no problems, but we'll see.
  • loubanasloubanas Posts: 3
    I have a noise in the engine compartment when my 2003 Bonneville is idling. When I press the gas petal, the noise goes away. I took it to the dealer and the answer was the fuel line is now connected to the fire wall and causing the noise. Didn't have a fix. Has anyone encountered this noise? And possibly a fix?
  • kupper25kupper25 Posts: 30
    Here's one especially for folks like Montanafan and Imidazol (must be a chemist?) who have written such great posts about early 90's Bonnes.

    I am "maintenance coordinator" for a 92 SSEi in my family with 52M mi. The ride on this vehicle is getting pretty mushy, and I am trying to determine if it is worth it to put money into the suspension. Don't know if this means shocks or struts, and don't know if this means full struts or cartridges. Also wondering if it makes sense to do the shocks (struts?) without also doing the springs.

    I think I do know that Bonnes of this year do not have the air-adjustable "ride adjustable" shocks that came later. I have looked over the old posts here, and I see that Snooper was asking about '96 Bonne struts back at post 1022, but I haven't found his answer (and don't know if it would apply to '92).

    In general the car is still working pretty well so I would consider improving the ride if the cost is reasonable and I can count on an improvement. Would appreciate any advice you can give me. Thanks.
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,605
    The whole strut gets replaced. I put replacement struts on my 93 LeSabre at 45k. Couldn't stand the soft wallow any longer -- it did NOT have air leveling on the rear so it was too soft. I put on Monroe Road Sensing struts. Now they have a different name for it. I just replaced struts on 98 LeSabre at 75 K with load levelers in rear.

    I waited till sears had their 1/2 price on struts sale on Monroe. Only problem is that they get to do the realignment -- not real happy with the quality of their alignment guy.

    I believe the replacement part numbers when I checked on 93 were the same for Olds, Bonne, LeSabre. If the ride you want is really firm, you might want a different strut. On the 93 it was firm. But now the 98 has a nice controlled ride after 5 K are on them -- but not real sports car like. The sensa-trac monroes are more compliant in the middle of the travel and tighten up near the top and bottom, at least that's my understanding.

    Springs should be fine.

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

  • gvoigtgvoigt Posts: 63
    Our '97 Bonne has developed a really annoying engine surge at speeds between 66-73 mph. It will vary 300-500 rpm. It seems to be the computer wanting to shift the trans or cannot properly sense the speed and is fluxing the the throttle. If you shift from OD to D it seems to help, but it isn't the answer to the problem. Anyone had a similar problem.
  • ezraponezrapon Posts: 348
    Believe it or not, I've had this problem and have heard of others with it as well.... it turned out to be plug wires.
  • gvoigtgvoigt Posts: 63
    Had the plug wires replaced for an unrelated problem not long ago. But I will check them again. Maybe this time I will install monster wires.
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,605
    I had a problem with my LeSabre 98 going up and down smaller amounts. It showed up with engine just starting to warmup at 35 mph with torque converter clutch locked up. It did it some at higher speeds. Service manager said usually you had to drive the car 20 miles to get it to act up. he said it's the control valve for the torque converter lockup. It never completely is locked up (to cushion engine vibrations from being felt by passengers) and this valve controls how much slip is present from 98% lockup down.

    I didn't change my trans fluid until 60K. He said it should be done at 36K. I suspect GM has bad valve or valve body and or poor transmission fluid they installed from factory. I have changed the fluid 2 times in 10K since. It seems to have helped. He thought it was sludged up. It's cheaper to try changing fluid myself than 6-700 for valve body replacement.

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

  • kupper25kupper25 Posts: 30
    Imidazol97, thanks for the response on the struts (post 1147-48). I'll see about changing them out and leaving the springs alone. Appreciate your help.
  • I had my struts (front & rear) replaced on my 92 approx. a year ago (had 152K). Can't say as it really made much of a difference from the old one.
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,605
    What struts/brand did you put on?

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

  • I had OEM parts installed at the dealership. Always have all my cars serviced at the same place by the same people. Just for S&G's, before I purchased the new struts, had the parts dept. manager look up the part numbers for the stock Bonneville struts and then cross ref. to other Pontiac struts. According to him the front struts on the Bonneville are the same as the WS6 package for the Trans AM. Anyway, I've had the new ones on now for about a year with approx. 11K on the odm and still can't say as I really noticed a big difference between the old and the new.
  • I have a 2000 Bonneville, with 33k miles, that has a noise that has been gradually getting louder over the past 24 months; it is now loud enough for my wife to hear it. It doesn’t seem to be getting louder lately. It is more pronounced while sitting in the car, barely heard while standing outside and is coming from the front, it sounds like a water pump or alternator going bad, the alternator was replaced by dealership, about 18 months ago thinking that was the cause. The noise is most noticeable at idle and can be heard slightly while driving. The noise is steady or constant, meaning it does not change with higher RPM’s. The local Pontiac dealer service manager has given me two different causes of the noise, one it could be the transmission and another time it could be the electric fuel pump
  • fantascpfantascp Posts: 175
    Keith- From your message #1044- you were right on the money- it was the plastic pin - it was sheared off right at the base- no wonder the trunk would never open automatically.- the part is an Actuator- GM #16630423- I got it from GM parts direct- total cost was $16.71 for the part and $7.95 S&H- it was pretty easy removing the old part and installing the new one- I can't believe i waited this long to finally fix the darn thing but i guess i was getting tired of opening the trunk with a key all the time- boy talk about how spoiled we get!- my first car was a 55 Chevy Belair- no auto trunk release there!
    Thanks again for your help.

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