WHY DOES MY VAN IDLE ROUGH IN COLD WEATHER (32 OR BELOW) AT A STOP, ALMOST DIES ?

2003 GMC Savana

Tiny

rinker232

October, 11, 2012 AT 5:24 PM

In cols weather only at a stop my van will drop to 100 rpm them back up to 600. You can see the head light dim. Som time it does die completely, usually just idle up and down

FOUND 4236 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

3 Answers

Tiny

KHLow2008

October, 11, 2012 AT 7:09 PM

If there are no trouble codes. The idle control system is not functioning correctly. Try cleaning the throttle body and IAC.

Tiny

rinker232

October, 11, 2012 AT 7:25 PM

Thanks But, done that. A NAPA store told me it was my cold idle sensor, but I can't find any info on that. It only when the engine is hot but the outside temp is +- 32

Tiny

ASEMaster6371

October, 12, 2012 AT 12:05 PM

There is no cold idle sensor. There is a coolant sensor. You need this checked from scratch.

Have the fuel pressure checked first. Start there

Roy

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