I have a 2004 Pontiac Montana and its been overheating, not that it makes a difference but we changed the spark plugs and wires, oil and filter change then we replaced the thermostat, then the water
Sounds like it could be an intake gasket. It's a very common problem. Have it pressure tested at a reputable garage. It could just be just an air bubble in the cooling system when you had the thermostat and water pump replaced. Cross your fingers its not a head gasket.
That could be possible but I had a friend that is a mechanic bleed all the air out after we changed the thermostat and water pump. But that still won't explain why my fans are staying on when my van is off and the engine and radiator are cold to the touch
If your fans are running it could be because the sensor for them is bad or giving a faulty reading.
Looking for a Used Montana in your area?
CarGurus has 387 nationwide Montana listings starting at $3,659.
Search Pontiac Montana Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Pontiac Montana Experts