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post #1 of 5 Old 02-23-2009, 08:49 PM Thread Starter
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1965 CJ6 
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random high idle

ok so a few days ago i started my 87 XJ and it was idling high (no tach so dont know what rpm's) and was high while driving. turned it off and when i started it again it was fine. well today when i got off work it was idling high so i pulled over and shut it off, started it up again and it was fine.

im thinking maybe TPS?? i dont really think its a vaccum issue since its like a week or so in between and doesnt fluxuate while running.

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post #2 of 5 Old 02-23-2009, 08:52 PM
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You may need to remove the IAC, and clean the pintle with throttle body cleaner. If you do be careful with the pintle, and don't push or pull on it.

  1. '95 XJ country edition, 4" coils/3/4" spacers, HD leafs with extra main added in, Ironman adjustable control arms, rough country shackles, aussie locker, JK rubicon shocks, 35" mudder's, soft 8's, cobra cb
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post #3 of 5 Old 02-23-2009, 08:56 PM
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get yourself a can of Power Foam and run through it.
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post #4 of 5 Old 02-23-2009, 08:56 PM Thread Starter
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ill check that out also, i planned on cleaning the throttle body also tomorrow (just as a maintenance thing, not to fix this problem)

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post #5 of 5 Old 02-23-2009, 09:23 PM
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Originally Posted by amsoilman View Post
im thinking maybe TPS??
I agree. Next time it revs up, try unplugging the flat TPS connector. If the rpm drops, you will know what the problem is. (Sometimes the problem is a poor connection at that connector.)
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