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Pontiac Bonneville General Maintenance and Repair

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What is this discussion about? Pontiac Bonneville, Sedan

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#473 of 2228 1999 Pontiac Bonneville SSE problems??? by lexie1 Aug 09, 2001 (10:09 am)
Has anyone who owns/owned the '99 bonneville sse experienced any "stalling for no reason" problems or had any other bad experiences with this vehicle??
#474 of 2228 Hidden collant leaks by ghchf Aug 10, 2001 (2:15 am)
Have a 95...had recurring loss of fluid...small amount...figured it was usage. Blew head gasket at 145K...fairly expensive repair. Heads were resurfaced, new plenum (plastic part warps) etc. I was advised that there could be ongoing problems. Car ran fine for another 3 months then bottom end seized...no more motor. Car in great shape and I had planned on keeping it anyway. Rather than go rebuilt, I had a factory fresh new engine installed..EXPENSIVE but car worth it. Nice to see shiny new motor arrive in shrink wrapped plastic sitting on a skid awaiting installation. Moral...stay on top of any coolant leaks. I now have a 95 with a brand new power plant...and new factory warranty. Real pricey but cheaper than a new vehicle. 95 Bonneville just too nice a car to give up on. Cheers.
#475 of 2228 COOLANT LOSS ssparks by wnewell Aug 10, 2001 (10:19 am)
ssparks, Try yur gm dealer for Gm Techical Bulletin 01-06-01-007. I can mail or fax to you some more info, just email me mailing address or fax number.   ghchf, if you get antifreeze in your oil and it runs for any length of time it will damage the main bearings.
#476 of 2228 High speed vibration problem: 2000 Bonneville SE by giamomj Aug 17, 2001 (7:02 am)
Help!!   I've had this vehicle since brand new - just 1 year at 17,600 miles now - no accidents, curb hits, etc. The thing has just been balanced re-aligned; I had to put new tires on at 16,800 miles at the same time because the alignment was so bad (this is a dealership goof that I am trying to get Pontiac to fix! - but they now refuse. The vehicle vibrates rapidly (shimmys) at speeds over 50mph - gets way worse over 60. I can feel it in the steering wheel, accelrator pedal, seat, even.   Pontiac refuses to look further into the problem - it's been in like 5 times - I've been to two different dealerships now. One stated "the car is normal" - the other says "we won't find anything."   Anyone know of this type of problem on the 2000/2001 Bonneville?? Anyone have any ideas?? (I am now thinking: shocks, suspension, transmission, other...???)   Thanks
#477 of 2228 Funny thing....(giamomj) by john325 Aug 17, 2001 (1:40 pm)
I just noticed a shimmy on my '99 SE this aftenoon that's occuring at 50 mph. Now I have 46k miles on it which is a lot different than your 17k. I'll have to have my mechanic take a look at it. I don't think mine is quite as eratic as they way you describe yours. Good luck w/it & keep us posted.
#478 of 2228 giamomj by theiceman Aug 17, 2001 (3:18 pm)
I would go to a well-reputed independent suspension shop and get a written diagnosis of the problem. The bring that diagnosis back to the dealership and make Pontiac swallow it.
#479 of 2228 Shake Rattle and Roll ? by homer2000ssei Aug 20, 2001 (12:09 pm)
Well, if it isnt your alignment, it could very well be your tires.   a common cause of "we cant find the problem" shimmy is bad rubber. either poor balancing or seperating belts inside, something along those lines.
#480 of 2228 Shimmy... by john325 Aug 20, 2001 (12:28 pm)
From one of the Shakers...Just yesterday the check enging light started flashing on my '99 se, and then stayed on after a while. I cornered my mechanic after church yestereday & he listened to it and said it's missing and probably needs wires or plugs. I believe the plugs are suppose to last 90K+ if that's at all possible. I'm suppose to drop the car by his shop tomorrow. In the meantime, this morning the check engine light didn't come on, but it's still running sluggishly. I believe my Michelins are fairly new, & I presume balanced correctly. I'm assuming/hoping the fix will be something minor.
#481 of 2228 Theft Lock by vogel22 Aug 20, 2001 (3:34 pm)
The only way to clear a theft lock is to take to a dealer. He can read a code with a special key. He will have to call Detroit with the code, prove he is a dealer and then they will give him the code to reset it to the starting point. They did it for me for free.
#482 of 2228 Check engine light by vogel22 Aug 20, 2001 (3:37 pm)
The check engine light means a part of the emissions stuff is not working. I got it when the dealer broke a wire changing the oil.

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