jeephack Posted March 26, 2010 Share Posted March 26, 2010 I just finished swapping the fuse block and dash harness from a '90 XJ into my son's '87 MJ. I know that this sounds far-fetched, but is there any reason why this not so simple act could cause the engine to idle higher? Before the swap, it was idling fine, now it idles at between 2500 to 3000. Any ideas? Jeephack Link to comment Share on other sites More sharing options...
Pete M Posted March 26, 2010 Share Posted March 26, 2010 vacuum leak? Link to comment Share on other sites More sharing options...
Geonovast Posted March 26, 2010 Share Posted March 26, 2010 Sometimes things pick weird times to brake. My brother's starter decided to go out during a motor swap. You didn't forget to plug the IAC in, did you? Link to comment Share on other sites More sharing options...
jeephack Posted March 26, 2010 Author Share Posted March 26, 2010 vacuum leak? I hadn't thought about it, but I'm also doing a little front end body work and have the front bumper and vacuum reservoir off. Could that be the cause? Link to comment Share on other sites More sharing options...
Geonovast Posted March 26, 2010 Share Posted March 26, 2010 There's your leak. Link to comment Share on other sites More sharing options...
jeephack Posted March 26, 2010 Author Share Posted March 26, 2010 There's your leak. And now I feel like such a dumba$z for not realizing that. Duuhh! Link to comment Share on other sites More sharing options...
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