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Chevrolet Master
14,092 Answers
- Posted on Mar 29, 2011
Re: 2010 silverado 4.8 rough idle at initial start. Will...
WELL YOU HAVE NEW VECHICLE UNDER WARRANTY.I WOULD SAY BAD GAS WILL CAUSE YOUR PROBLEM.BEST TO LET DEALERSHIP CHECK IT OUT.A FAULTY EGR OR IDLE AIR CONTROL VALVE WILL CAUSE ROUGH IDLING AND STALLING.BUT THOSE ARE NEW PARTS THAT STILL COULD BE DEFECTIVE.
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