Thread: Throttle body gasket?

The throttle body gasket does not have oil going through it. The gaskets you're looking for are the lower intake manifold gaskets (go between the heads and lower intake). Mine started going (leaking a little coolant) at ~50k miles.

Here's a picture of new gaskets and what you're looking at for the repair:



I made a write up on how to do the repair over at NAIOA, but you have to register to be able to view it (free). Let me know if you're interested.

Register at North American Impala Owners Association - .

Once you are logged in, click this link:

North American Impala Owners Association - Articles

Or, go to the "Articles" button up top, select 2000-2005 Articles, then the gasket replacement.

Don't be afraid to stay around either.

Depending on how bad the oil leak is, it can go for a while. But, how you drive it won't affect the failure too much. My main concern would be what else is leaking. Coolant also goes through those gaskets and can leak internally. It could leak into the oil, into the intake runners, it could leak externally, etc. These gaskets fail in a variety of ways.

Once you do the repair, you'll never have to look back. In the picture above are the updated gaskets from GM. They're made from aluminum and won't fail the same way as the factory plastic gaskets.

Doing the repair isn't hard. The updated LIM gaskets cost $50, plus another $50 in miscellaneous parts, UIM gasket, and fluids. Maybe another $20 on top of that. As long as you have the required tools I listed, you'll be fine. It's just your time that's taken up, and I promise it isn't hard. We're here to help if you hit a snag.