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smoke test

01GrandPrixTURBOGT

01GrandPrixTURBOGT

New member
So I blew smoke through my map hose and it came out through my throttle body. Is that supposed to do that? I also found a few more leaks up by the brake booster and boost vacuum lines on top.
 


Smoke would never come out if it was running. Air (smoke) should be able to pass through the TB as far as I know since it's not a perfect seal when it's "closed". Anywhere else would be considered a vacuum leak and should be repaired.
 
02NavyBlue said:
Smoke would never come out if it was running. Air (smoke) should be able to pass through the TB as far as I know since it's not a perfect seal when it's "closed". Anywhere else would be considered a vacuum leak and should be repaired.
Click to expand...
Exactly why I asked
 
No car was off. But i plugged the end of the intake and smoke came out under the snout of the blower so looks like im replacing gaskets. But i do have other questions is there an o ring that goes on the egr slot by the two coolant passages? Also why would coolant be leaking from under the throttle body? The gasket looks brand new still. And do you guys put anything between the rotors and case and the snout like rtv gasket sealer. Thanks for the help.
 


There is no o-ring around the EGR. Only the coolant passages, it would be nice to know what year. Because that can change answers slightly.

If you don't think the TB is leaking, Is this an internal or external leak? External.. check the little turn around cap under the TB on the LIM.

Slide rotors into case..no sealant. Sealant only goes from rotor pack to snout.
 
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