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Unread 02-23-2009, 07:49 PM   #1
amsoilman
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1965 CJ6 
 
Join Date: Apr 2008
Location: eastern oregon
Posts: 152
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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Unread 02-23-2009, 07:52 PM   #2
xjfever
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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.
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Unread 02-23-2009, 07:56 PM   #3
Ridin' Around
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get yourself a can of Power Foam and run through it.
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Unread 02-23-2009, 07:56 PM   #4
amsoilman
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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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Unread 02-23-2009, 08:23 PM   #5
tangofox007
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Quote:
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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