4.3 idling extremely high!

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4.3 idling extremely high!
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dubDyme
+1y
yep...up around 2800-3000 range. any suggestions? i pulled the t.b. off to mount up a new intake, got it all reassembled and this is where i am....thanks
Holeyguy66's avatar
Holeyguy66
+1y
if there is a tear in the intake gasket it will idle high.
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dubDyme
+1y
are you saying intake as in the throttle body gasket or the actual intake gasket? also, if i unplug all of the sensors, it runs like a dream!
zadaddy's avatar
zadaddy
+1y
you could have a leak in the intake gasket, a loose vaccuum(sp?) line, or a bad IAC.