RepairPal is your advocate for car care advice and guidance

Q: How long can I drive before repairing cylinder 4 misfiring? on 1996 Mazda MPV

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Check engine light diagnostic indicates cylinder 4 misfiring. Mechanic says I can drive a while longer, but it will get rougher. Light went out on it's own, but has come back on 2 weeks later - same diagnostic. Cost estimated at $300 to repair. I cannot afford this at the moment and may be given another vehicle in the next couple of weeks. How long/far can I drive the car at this point before giving up?
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
If you do not repair a misfiring cylinder, and we're talking spark plug, coil, wire or the like -- then you are risking serious engine and catalytic converter damage that will cost you many times more than the $300 you were quoted.

If the misfire is spark related - which is what it sounds like -- then unburnt fuel is still being sent to the cylinder and out your exhaust - causing your catalytic converter to get entirely too hot - and causing damage.
Find Out Why Your Check Engine Light Is On
Didn't find what you were looking for?