1993 chevy tbi gasket leak
I have a 1993 chevy 1500 with a 350 that has a tbi unit on it. I had a vacuum leak coming from the tbi gasket so i changed it but the leak is still there right in the front of the gasket. I changed it again still the same also tried a spacer with two gaskets still same spot. So i tried a different throttle body, with the same results i thought there could only be one thing left which is the intake but after a brand new gm performer intake i still have the same gasket leak in the same spot. The engine runs great and i can hold brake clean on the leak with no problem but when the brake clean goes away the leak comes back. Any ideas?
Where the tbi attaches to the intake manifold might be warped. Replace the intake manifold or take it off and have a machine shop check to see if it's warped.
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