2000 Chevy Silverado Start-up idle speed

Tiny
CORT321
  • 2000 CHEVROLET SILVERADO

Engine problem
2000 Chevy Silverado V8 Two Wheel Drive Automatic 114000 miles

When starting on a cold morning my engine idles very rough (high to low surging) almost to the point of shutting down. I will use the foot pedal to maintain ~1500 rpm for a minute or so until the engine maintains idle on it's own. After beginning the trip the engine runs fine. The truck has been running fine since purchasing new. I gave it an engine tune last year. Thanks for your help.
Dan

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Tuesday, January 22nd, 2008 AT 8:21 AM

1 Reply

Tiny
MERLIN2021
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  • 17,571 POSTS

Check your ECT, that's the engine coolant temp sensor...it acts like a choke for FI vehicles...


http://www.2carpros.com/forum/automotive_pictures/62217_2000ECT_1.jpg

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Tuesday, January 22nd, 2008 AT 8:28 AM

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