Question about 2004 Chevrolet Silverado 1500 Crew Cab
My truck is idleling rough has service engine soon and code po300 and i changed plugs and wired after that and did not help need to know where to go from here
Have you O2 sensors checked out. I have blowen out 2 on the same bank, sounds like the same problem. Check engine light will stay on solid, blink for a while, solid. Surefire way to check is run your finger in the tailpipe after it is cooled down. If it is very black with soot, then it probably is the O2 sensor.
Posted on Mar 19, 2009
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Posted on Jan 02, 2017
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