Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: My 04 L5 Colorado is showing a misfire code. on 2004 Chevrolet Colorado

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Chevy replaced the head under warranty around 35k miles for cylinder 5 misfire. Truck now has 142k & getting misfire code. Don't know which cylinder yet.
Coilpacks still original, replaced the plugs around 128k.
Any advice?
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
What is the code number? Anyting other than random misfire code PO300, the last number in the code is the misfiring cylinder. Example: code PO 305 is a misfire in cyl 5, code PO 302 is a misfire in cyl 2 etc.! MOST LIKELY SUSPECT: a coil is breaking down, suggest replacing ALL coils and plugs! Also suggest using ACDelco parts, if you plan on keeping the truck! However @ 142k whatever.
Why AC Delco parts. From what I see, they're around $75-$80 a piece. I can get others for as low as $24 each. What's the difference? What type plugs?
What ever you want to do, it's your vehicle and your money! ACDelco parts is what i suggested, that included spark plugs, at least use their OEM plugs. You get what you pay for.
Thanks. Just wondering why the Brand Specific recommendation. I'll be happy as long as I don't have to replace the head.
Didn't find what you were looking for?