04 Silverado check engine light help needed
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From: Pgh pa
04 Silverado check engine light help needed
hello everyone. I own a 04 Silverado 1500 4.8 L w t 4WD standard cab. I am getting Getting two codes p0449 and p0420 coming up on scanner. I heard the p0420 is for a bad catalytic converter and I hope to God it's not. I was hoping it was the upstream Bank because it does say Bank One sensor One. What normally is the problem with that code. Please help....
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thegoaltender
1999 - 2006 (GMT800)
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Jan 3, 2017 12:29 PM
alno1995
Silverado, Sierra & Fullsize Pick-ups
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Mar 1, 2010 6:52 AM
