Search the Community
Showing results for tags 'idle rough'.
Recently replaced plugs and wires in 2004 Chevy Silverado Z71. It now idles very rough almost to the point of stalling and misfiring. I found a forum somewhere that mentioned wrong plugs but now can't find it to show the hubby. Any help is appreciated! Love these forums!
I have a 2012 silverado and my check engine light keeps coming off and on. The codes read are c0900- device 1 voltage high(history) c0899- device 1 voltage low(history) p0300- multiple misfire detected (History Mil) p0301- cylinder 1 misfire detected (confirmed) there is a slight rough idle on the truck, and I think that my gas mileage has decreased slightly Does anyone have any idea what my problem could be before I take it to a shop, or start replacing parts