During a regular oil change my mechanic discovered oil in the anti-freeze. Head gaskets went out. My mechanic states they have seen in almost every 3.4 Pontiac Montana mini van that around 80,000 miles there is oil in the antifreeze which indicates a head gasket malfunction. Took mechanic 3 days to fix my van to a cost of $1212.83 plus I was without a vehicle for 3 days. At about 79,000 miles the wheel bearing went out. Now the slider passenger door won't open or won't close at times.

- Medford, WI, USA

I had to have the engine replaced on my 1999 Pontiac Montana. There were only 53,000 miles on it at the time. The reason for replacing it was because of a problem with the cooling system that caused "gunk" to build up and eventually ruin the engine.

- Tiffin, OH, USA

GMC knew of a problem with leaking manifold intake gaskets. I recently had the problem, paid over $600 to have it repaired, and a few weeks later, the engine blew...costing me close to an additional $3500. I contacted GM before the repairs were done, and they refused to help me.

- Chelmsford, MA, USA

Consumer states there is a knocking noise in the engine compartment. Dealer advised that the noise was normal, however, problem still exists.

- Stafford, VA, USA

Purchaused used (6 months old) have now owned auto for 2 years. At 38000 miles transmission starting shifting harsh at times, had to replace transmission. Engine has started acting as if it is going to stall for no apparent reason. Radio has been replaced 3-4 time, due to garbbled display. Most recently however, I had door locks repaired, and was told that the wires to the locks were damaged due to the water intrusion caused by the air conditioning leak into the auto instead of outside the auto.

- Cedarville, OH, USA

The engine failed.

- Mesquite, TX, USA

The van stalls or hesitates without any kind of warning. This happens while driving or taking off after a stop. The van has stalled four times since October of 1999. Van is at the dealership. Dealer is not able to remedy this probelm.

- Mesquite, TX, USA

While driving on highway/stopping or pulling off or taking foot off gas pedal, vehicle stalls. Has to drive with both feet in order to keep the rpms up. Contacted the dealer, and vehicle is still at the dealer. But, dealer can't duplicate the problem.

- Washington, DC, USA