I am in the process of changing one in a 1997 lumina, 3.1. If you are not a descently skilled mechanic then I would have a mechanic do it. However if you are good at tearing things apart and fixing them, then give it a shot. Its not to bad, just becareful, go to autozone and buy a haynes manual for that vehicle before you start that is gona be the best way to learn.
video to learn how to replace the engine gasket..upper & lower gasket for 1999 Monte Carlo.
I just had my intake gasket changed on my 99 Monte Carlo for the same thing. My cousin is a mechanic and has changed the same gasket on several cars with the 3.1 engine. The gasket is about $60 - $75 plus labor.
You need to replace your intake manifold gasket. Chevy had a bad problem with these gaskets.
How to replace head gasket on 05 3.4 monte carlo
If you have it done it will be at least $1,000.
Most libraries have repair manuals you can copy with step by step instructions.
Do you have to reprogram a engine computer once you replace it on a 03 Monte Carlo ss 3.8?
It's probably a head gasket problem.
thermostat gasket probably leaking. replace thermostat and gasket making sure that thermostat housing is flat.
i suggest you get a repair book.it is not easy
more than likely a blown intake gasket or head gasket, check your oil to see if it looks milky colored.
A vacuum leak can cause the engine to idle high, but worse than that it can cause one or more cylinders to run lean. That can result in exhaust valves and pistons running at a higher than acceptable temperature and cause premature engine failure.