Plenum gasket

[19shelbyz87]

Anybody had preoblems gettin the upper and lower to seal,

[tryingbe]

Check your air idle control valve.

Unless you didn't clean and remove the old gasket, the upper and lower intake manifold should seal just fine.

[19shelbyz87]

I removed IAC or AIS cleaned it stepped it all the way out intstalled it with the connector unplugged still runs 1500 to 2000. removed all the vac lines and just hooked up the
map and started still high idle. also all the innjector seals seem to be ok. The only thing i doubt is that i made the plenum gasket, but the material is very close to the same thickness and the gasket is a perfect fit. I guess I will try the mopar gasket that is on order, but I have little faith. I can hardly believe that the intake is cracked. I am officially stumped I have never ran into anything like this.