While driving the check engine light came on. Consumer pulled off the road, called the mechanic, who told them to check the water level, which was fine, the antifreeze level was empty. Consumer refilled the antifreeze and drove to the dealership, who indicated that the intake manifold gasket had gone out, and needed to be replaced. This was a common problem with this vehicle.

- Boynton Beach, FL, USA

Intake manifold gasket leaking coolant. Replacement of intake manifold gasket, cooling system flush, oil and filter change.

- Spring Valley, OH, USA

Upper and lower manifold gasket coolant leaks. (dealer claims that they are doing 10 a week on this vehicle).

- Auburndale, FL, USA

Consumer complained about intake manifold gasket which was causing a coolant leak into the engine. Intake manifold gasket was replaced by dealer. The consumer feels this part should not have failed at 48,000 miles.

- York, PA, USA

I have a 2000 Pontiac Montana with a 3.4 liter engine. I had the intake manifold gasket replaced in January of 2003 because the coolant was leaking out. It cost about $600 to do this. I recently changed the oil on February 29, 2004 and noticed coolant in the oil again. I am now working with the mechanic again to fix the problem. Apparently there is a quality control problem at GM regarding their manifold gaskets. I know other people with the same problem. A friend of mine owns a 2003 Grand Am with a 3.4 liter and they had to have their intake manifold gasket replaced twice. My brothers rich and steve also owned GM trucks that needed the intake gaskets replaced.

- Davison, MI, USA

The intake manifold gasket had to be replaced on my 2000 Pontiac Montana at 109,000 miles. My daughter has a 2001 Pontiac Montana with about 47,000 miles and she needs to replace the intake manifold gasket also. Sounds like the gasket may have been substandard.

- Kansas City, MO, USA

Consumer noticed that vehicle had a low coolant level. Took the vehicle to the dealer, who determined that the intake manifold was cracked, and had to be replaced.

- Lake Villa, IL, USA

Dealer replaced lower intake manifold and related sealer. Also, replaced the water pump, and flushed the cooling system. Coolant went into the engine.

- Long Valley, NJ, USA

Low coolant light intermittently illuminates. Dealer diagnosed problem as a leak in the lower intake manifold. Dealer has attempted to repair several times, but problem still occurring.

- Woxall, PA, USA