My buddy ended up changing his girls intake manifold gaskets as they were leaking some. Well he finishes up the job and calls me later telling me he's got coolant in the intake manifold and TB. Well last week he calls me up and says the call refuses to stay running. It runs for about 3 sec and then stalls. I asked if the tach is working and he says yeah, as I thought he had a bad CPS sensor. I stop by on sunday for only a few minutes to run a quick scan with my snap on unit, and it gave me the bad CPS code. When I started the car, the tach also didn't work.
Fast forward to yesterday, he ends up replacing the sensor and calls me up saying its running, but smoking like crazy. I tell him he's burning coolant and he checks the TB/intake manifold and he can see some coolant in their. He tells me he used RTV at the corners of the lower intake manifold gasket like your suppose to do and cleaned the surface of the parts before resealing them up.
I've never done an L36 gasket change (plenty of L67's), but he's convinced his plastic intake manfiold is warped. How likely is that, as I know some manufacturers redesigned them to prevent them from blowing up, because of EGR tube issues, among some other things not to mention the L26 went to aluminum intake manifolds.
I'm going to probably help him this weekend if I have time.