Close
QUESTIONS

RepairPal is your advocate for car care advice and guidance

Q: why is my check engine light on?
on 2008 Pontiac G6

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
code p4020, dealership says its one of the catalytic converters, how do I know which one it is. And what is the cost for repair? It just crossed 100,000 K miles, is it worth repairing?
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
Find Out Why Your Check Engine Light Is On
Didn't find what you were looking for?