I have a 99 JGC with a 4.7 engine. When cold it will start than die. If you feather the accelarator a little. It will idle than let it warm. Once warm there is no problem. I have replaced the IAC it is better. The new IAC was shorter I figured that once driven the computer would adjust. I have alos replaced the Intake Air Temp Sensor. Still no change I will disconnect the battery. Let it relearn the codes and try again. In another forum they mentioned disconnecting positive cable and touching to negative for 10 seconds. Anyone Thanks
Problem solved:
crc, wins (Different Forum) With crc's reply in mind I decided to charge the battery. I put my charger on and it was drawing lots of amps. I waited an hour and it started and idled perfectly. So I put a trickle charge on overnight. Next morning started and ran great. Couple of days later it was back to the same old crap. Pulled the battery and took it to the local parts store. Thay put a test on it and it was bad. I replaced the battery and everything has been fine. There was no indication that the battery was failing. Who would of thunk!!!!! Hope this helps other Jeep owners.
Problem solved:
crc, wins (Different Forum) With crc's reply in mind I decided to charge the battery. I put my charger on and it was drawing lots of amps. I waited an hour and it started and idled perfectly. So I put a trickle charge on overnight. Next morning started and ran great. Couple of days later it was back to the same old crap. Pulled the battery and took it to the local parts store. Thay put a test on it and it was bad. I replaced the battery and everything has been fine. There was no indication that the battery was failing. Who would of thunk!!!!! Hope this helps other Jeep owners.