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BDS 4-1/2" Suspension Lift Kit - Jeep Wrangler YJRuffstuff 10 year saleRough Country Lift Kits and Parts!

Unread 05-05-2008, 03:14 PM   #1
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1998 TJ Wrangler 
Join Date: Mar 2008
Location: Armada, Michigan
Posts: 315
idling high

I took my jeep out for the first time today after it say since the beginning of march, i started it up every 2 days during the waiting period and revved it a bit, it ran okay, bit shakey but it was fine after a few miles, i pulled into the parking lot at kroger and put it in park and it was idling at 1500 rpms, hit the gas a bit and it still wouldnt go down, shut it off and start it up again and its around 1000 then drops back down to 600-700...

what gives?

also, how hard is it to put a wheel stud in the rear end? its a 98 limited with a dana 35c

Dannn is offline   Reply With Quote Quick reply to this message
Unread 05-05-2008, 03:21 PM   #2
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2001 WJ 
Join Date: Dec 2007
Location: Indianapolis, IN.
Posts: 508
Happened to me a couple of years back. I cleared the ECM and all was fine. Pull a battery cable, turn the headlights on, wait 10 minutes, turn lights off, then reconnect the battery cable. Now.... you'll need to DRIVE for 20-30 minutes to allow the ECM "re-learn". Idling won't allow the ECM to re-learn correctly.

Good Luck!!
"Seems like common sense isn't that common anymore"
And by the way.... "alot" is NOT a word!!!!
1997 Gunmetal Blue XJ Sport - 4.0 L. I6 - 4 Dr. - 4x4 - 1.75" BB
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Unread 05-05-2008, 06:36 PM   #3
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1998 XJ Cherokee 
Join Date: Apr 2006
Location: Nolensville, Tennessee
Posts: 1,628
I'm running down this problem myself. It's intermittent, and I think it's the root of my 18mpg instead of the low 20's I should be getting.

I cleared the ECM after changing plugs, wires, and air filter. 2 months later, I still have problems with high idle. Last weekend I was going 40mph from a dead stop without ever touching the gas pedal. Put that puppy in neutral and it went to 3 grand on the tach and stayed there.

This weekend, my plans are:
Clean IAC
Clean Throttle Body
Check and Clean Throttle Position Sensor

If that doesn't work, I'm going to replace the forward O2 sensor.
If I've never pissed you off, give it time.
wizardPC is offline   Reply With Quote Quick reply to this message

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