There is a vaccum line that runs along the top of the passenger firewall inside the engine bay that is broken. Found out the hard way. I cut mine pulling the engine. It's a easy fix, sometimes you can just rap it in tape.
new engine,1.7 rocker arms,Pipes exhaust, shorty cats , shorty headers,under drive and overdrive pulleys,4.2 upper plenum, throttle body spacer, cold air intake, stage one clutch, shorty shifter, and tune. 8.8 in storage