Question about 2003 Chevrolet Silverado 1500
I have a 03 silverado 1500 with the 5.3 engine. My idle seems to be any were from 1000rpms to 1200 for the first 5 or 10 minutes when first started. I have a check engine light that comes and gos as well. I have recently ran a can of "sea foam " through with no improvement.Excelleration is fine,gas milege is fine,just erractic idling and of course the check engine light!! any thoughts with matter would be greatly appreciated. Mike
Try cleaning the throttle body really well to see if that dosent help.you may have to take if off the truck to get it really clean but that sounds like what you may need to do
Posted on Jan 08, 2009
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Posted on Jan 02, 2017
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