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Idle problem

Tiny
SKIPSJEEP
  • MEMBER
  • 2003 JEEP LIBERTY
  • 3.7L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 190,900 MILES
Runs great smooth, but went I start it up and have to put my foot on gas n idles very low (420-500)IT will stall if AC is put on or trying to parked her. This just happened all of the sudden. I just cleaned TB last week as recommended. Also, no check engine light, but it does work. Any ideas?
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Monday, February 20th, 2017 AT 7:31 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,737 POSTS
This happens after the battery was disconnected or run dead. The Engine Computer needs to relearn "minimum throttle" before it will know when it must be in control of idle speed. To meet the conditions for the relearn to take place, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the pedals.
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Monday, February 20th, 2017 AT 7:51 PM

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