

▲ 2 r/ChevyTrucks
Original plugs. How bad are they?
I have 2010 chevy avalanche. Abit of rough idle and smells gas from exhaust on cold start. Took out the plugs today and they look like this. Truck has 150000km with original plugs. I know its time to change them, but would these cause the roigh idle? I cleaned the MAF and throttle body and still the same issue.
🙏
u/OneEscape6438 — 1 day ago