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Author Topic: YJ idle at 3000 RPM  (Read 6494 times)

Offline jkcawood

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YJ idle at 3000 RPM
« on: October 25, 2008, 06:37:02 PM »
Today I replaced the exhaust manifold on my son's YJ and after completion, the jeep idles at 3 K RPM's.  Any suggestions?
Sprayed around exhaust manifold and idle went down so the leak is around new gasket.  When I put on the new manifold I noticed that the old cracked manifold did NOT have a gasket, I have never seen that.  I am having trouble tighening the bolts and will take to my mechanic and let him tork them down.  Thank you for responding.
« Last Edit: October 26, 2008, 02:06:33 PM by jkcawood »

Offline Bill Cooke

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Re: YJ idle at 3000 RPM
« Reply #1 on: October 26, 2008, 11:47:47 AM »
You might have a massive vacuum leak. Check everything to see if somethng was left loose.

Hope this helps

Bill Cooke
Jeep is hobby, Dodge is a sickness!

Offline jkcawood

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Re: YJ idle at 3000 RPM
« Reply #2 on: November 06, 2008, 08:06:23 PM »
Replaced gasket again and now all is well.  Many thanks to all!

Offline RUMMY

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Re: YJ idle at 3000 RPM
« Reply #3 on: May 19, 2016, 08:12:27 AM »
What carb on it ?