RepairPal is your advocate for car care advice and guidance

Q: cylinder #3 misfire on 1999 Oldsmobile Alero

My check engine light comes on and the engine begins misfiring. Scan shows #3 misfire change spark plugs still has misfire any tips ?
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
Here is a ton of useful info about misfiring #3 cylinder (P0303 Code)
i have a 2000 alero with a 3.4 engine i had the same problem.
i changed my coil pack leading to cyl. 3 problem solved
Didn't find what you were looking for?