Two problems related to engine cooling system have been reported for the 2001 Oldsmobile Alero. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Oldsmobile Alero based on all problems reported for the 2001 Alero.
4/18/lower intake leaking badly, replaced lower intake gaskets & cleaned all parts under warranty. Coolant in oil. 6/24/advised that coolant leaking into oil again. Advised of need to replace upper intake and valve cover gaskets.
I have a 2001 Oldsmobile Alero GLS. The car is less than 3 years old and has less than 40,000 miles on it. I noticed that the coolant light kept going on. I looked under the car initially and did not see any leakage. I added 50/50 dex-cool to the resevoir. All was well for about two weeks. Then the light came on again. This continued for the next month. I started noticing leakage. After reviewing where the leakage is coming from, I have determined that it is right abive where the thermostat where there is a bolt that attaches the intake manifold to the engine.