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2003 GRAND CHEROKEE LAREDO FAST IDLE AT START
05-18-2008, 11:03 AM
Post: #11
RE: 2003 GRAND CHEROKEE LAREDO FAST IDLE AT START
CaryJoeYork Wrote:More than likely, yes. I would clear the codes and reset the adaptive memory. Normally it would require a scantool to reset adaptive memory. But I would first try removing the + and - battery cables off and connect the two together wih a jumper wire. This will power down any keep alive memory in the PCM. That may reset the adaptives. If not it will require a scantool. I would try that first.
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I just got back from vacation yesterday and I disconnected the battery and turned on the headlight switch for 1/2 hr. This appeared to clear the check engine light and all stored codes, but not sure if it cleared the adaptive memory. This is my wifes vehicle and is now paranoid to drive it. Every small motion she feels she thinks it wants to quit running. I think it is running great with the only problem being the odd idle only after cold start. But I had been noticing the problem has been not as severe as in the past for some reason (mabe warmer temperatures?). I have a manual transmission that my wife can not drive so we can not swap vehicles. So only weekend troubleshooting for now Sad
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