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Truck starts and runs fine while its cold (has.

Tiny
BONES RONE
  • MEMBER
  • 1995 ISUZU TRUCK
  • 150,700 MILES
Truck starts and runs fine while its cold (has not been run) once started and driven so far (usually only on warm days no problems when cold weather) it starts to stall, right before stalling the check engine light comes on. I have run the engine codes and replace the issues that were listed but with no real progress because the problem is still there. I just recently replaced the ignition control module and still no progress, Please help!
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Sunday, November 4th, 2012 AT 5:46 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It could be the idling speed is too low. Try cleaning the throttle body and IAC. What trouble codes are you getting and is the code still present?
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Sunday, November 4th, 2012 AT 6:26 PM
Tiny
BONES RONE
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  • 1 POST
It is now throwing up a code 44 which is the o2 running lean, I guess I will try to change that and see if I have any more luck than I have been
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Monday, November 5th, 2012 AT 5:09 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
You might have a vacuum leak causing the lean running condition and stalling.
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Monday, November 5th, 2012 AT 7:24 PM

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