I was no the freeway and there is a lot of construction so there is no where to pull over the car got really hot. I was trying to get off the freeway as I was going on the off ramp the car temp all the sudden went red then engine had stopped. I had my girls in the car. They where very scared. Come to find out the head gasket went out for the second time. It went out just after I bought the car it was at 41000 mile now at 120000 it goes out again it is now going to cost me another $1700 to fix it. I have read a lot of complaints about this problem why have you not look in to this problem. Is it a safety problem these car heat up insteadly an the engine has a fail safe that shuts it off. If it would have shut off a few moments earlier I would have still been on the freeway and I would have been hit.

- Avondale, AZ, USA

Was told that my intake manifold gasket was starting to rust and would need to be replaced eventually. Service dept. Mgr at midway Chevy in plainwell, mi told me he would keep an eye on it at every oil change (this went on for at least 3 months). March 7th my coolant level low light came on. Husband checked the level and the reservoir was empty and all gummy in bottom. Said it needed to be flushed and refilled. Took to non-GM dealer since it was after hours and knew the owner would take care of in morning. He called and said the manifold had to be replaced as the coolant had leaked internally and externally. The repair cost was $607.

- Plainwell, MI, USA

At 63000 miles my 3.4 L engine began leaking coolant at the intake manifold. My mechanic and two others told me that this is typical of 3.1 and 3.4 L GM engines and that the company realizes that it has a design flaw because the replacement gasket has been re-engineered and the replacement bolts. The repair was done at a non GM repair shop and cost me $796.22

- Vienna, VA, USA

Sludge in radiator and coolant expansion tank on my 2000 Oldsmobile silhouet the owners manual states that it should be replaced every 5 years or 150,000 miles but now I'm faced with repairs that I don't know how much they are going to cost me. I just made the discovery today while checking fluid levels.

- Foothill Ranch, CA, USA

My 2000 Oldsmobile Silhouette, with 48K miles on it, has had a slow coolant leak for the past few weeks. Upon taking it to the repair shop the mechanic informed me that the rear 'head gasket' has a leak. He stated that this has been a common problem with GM vehicles using dexcool coolant. I plan to contact the manufacturer.

- Upper St. Clair, PA, USA

Leaking intake manifold gasket at 50,000 miles.

- Harrisburg, PA, USA

2000 Silhouette with intake manifold gasket leak due to dexcool. Shorted out plug wires etc.

- Toledo, OH, USA