manch420 Posted March 3, 2011 Share Posted March 3, 2011 How the hell do fix the high-rev start up? Almost every time i start up my MJ it sounds like the throttle is pushed all the way to the floor and the only thing i can do is shut it off and retry untill it idles normally. Link to comment Share on other sites More sharing options...
Eagle Posted March 4, 2011 Share Posted March 4, 2011 This is often caused by a dirty idle air controller (IAC). On my high-mileage 1988 XJ, I've found that another factor is corrosion in the throttle linkage. The cable from the gas peddle doesn't go directly to the throttle body -- it goes to a lever (bellcrank) on a pivot that's mounted down below the brake master cylinder, near the frame rail. I found that soaking that with PB Blaster, then following up with motor oil cured most of my fast start-up issues. Link to comment Share on other sites More sharing options...
ComancheKid45 Posted March 4, 2011 Share Posted March 4, 2011 Also check all your Manifold bolts :wrench: Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now