2000 Pontiac Bonneville Engine cooling Problems

“We are trying to find out if anyone knows of problems with GM Pontiac Bonneville's plastic upper exhaust manifold. We own a 2000 Bonneville with 83k mileage. The plastic manifold exploded while trying to start the car. We are trying to resolve this with GM at this time. We learned that this has occurred before with other year bonnevilles.”

“I smelled a burning odor in my Bonneville ssei. The local GM dealer, on the incident date in this form, told me the cause was oil dripping on the exhaust manifold and that it was a fire hazard. Upon further investigation, I found an existing NHTSA action number (ea07008) for the exact problem I am having for the exact 3800 series ii v6 l67 GM engine. There were 2 recalls for cars with this engine, but my Pontiac model was not included (even though it has the exact same engine). The NHTSA campaign id numbers associated with the recalls are 08v118000 & 09v116000. …”

“I've run into a dex-cool problem with my Pontiac 2000. The car has 65.000 mi and the cylinder head gasket is starting to leak, eventually destroying the engine. What kind of recourse do I have after the dex-cool class action law suit is closed? The postmark and online submission deadline to submit a claim statement was october 27, 2008. I did not had any information about this class action suit and deadline. Since this is clearly an oem defect involving thousands of cars and drivers GM should have reacted responsibly and issued a recall.”

“One nut and bolt on each side of inner panel under the hood in engine compartment were loose. I tightened about 4 to 5 turns on nut (used 18mm open end wrench). After this took it to dealer-ship to know what this two bolt does ? Dealer-ship technician said those are the bolts for front motor mount and rear transmission mount. My concern is that those bolts might be started to damage in 4 year of vehicle life(possible shear at the inner panel in engine compartment). Dealer agreed to order this part but waiting for answer from Pontiac. …”

“I have had my 2000 Bonneville in the shop several times for various reasons. My radio had to be replaced, my drivers side window stopped working and they replaced the motor, now my passenger side window does not work and needs to be repaired. My trunk leaked and was told the extended warrenty did not cover it and the expense was on me. My air conditioner would blow cold air and then hot air or not blow cold air at all, it was in the shop 2-3 times for that. Now my car hesitates when speeding up and you can feel it jerking into gear when it shifts between 1st and 2nd gear or 2nd and 3rd. …”