Car Dies at Idle after cold start

Asked by ibenzawla Jan 01, 2021 at 02:03 AM about the 2008 Chevrolet HHR SS FWD

Question type: Maintenance & Repair

Hi, I have a 2008 Chevy HHR SS with 154K miles. It has this weird issue. Lets say its parked the whole night (About 8 hours or more). I start it and and it starts fine. I let it warm a little. Put it in drive and off I go. No issue there. But then if I stop at the next red light or stop sign it suddenly dies with no signs that its about to do so. I will then immediately put it in park and start it again and after that it will run fine the whole day and night. As long as its not parked for over 8 hours then it will start and run fine with no issue. It doesn't show any CEL light and the idle sounds normal.

2 Answers

3,775

idle control sensor ( or whatever the language is in chev). Usually a car will die from run if it's just sitting in cold air. The MAF struggles to read cold air and then it struggles to send message to computer over grams to complete stoykiometry of 1471 for proper combustion. it probably wouldn't hurt to change your fuel regulator as well. Could have defective diaphragm.

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