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Truck won't start when it's cold

Tiny
MFINK1
  • MEMBER
  • GMC SIERRA
We have a 1997 gmc sierra 4x4 truck and we recently replaced the egr valve and it has been running fine. Now the check engine light is on again and we are completely unable to start it in the mornings when it is cold. In the afternoons, I can go out there and it start right up, no problem. It seems to be a "cold" issue that we are having. Can you give me any advice on this?
Thanks guys. I'm so glad I found your site!
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Wednesday, November 28th, 2007 AT 4:27 PM

1 Reply

Tiny
FISHERMAN
  • MECHANIC
  • 937 POSTS
Hello !!

First retrieve the "codes" out of the ECM Here`s how:

https://www.2carpros.com/dia/index.htm

Then comeback with the codes.

and we start from there..

Good Luck!
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Wednesday, November 28th, 2007 AT 4:30 PM

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