• Tiny
  • donaldreed
  • 2004 Jeep Grand Cherokee
  • 90,000 miles

I have a 4.0 liter that I have replaced the IAC on several times. Somewhere I read that the tip of the plunger measured from the mounting base s/b no more than. Also how can I tell where the plunger is in tis cycle? I want to try one more time before taking to the dealer. Right now it is idling at 1100 to 1600 and I can't drive it. Someone told me that there may be a way to get the engine to adjust to the new plunger by turning the key on and off several times?

Saturday, January 19th, 2013 AT 9:27 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

The only way to see where it is, is with the use of a scan tool. It can be driven in and out to see if it functions.

Did you clean the passage way very well? Carbon is your worst enemy in throttle bodies.


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Saturday, January 19th, 2013 AT 10:14 PM

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