Q: My 2002 Honda Odyssey has a Check Engine light. It's supposed to be a misfire. The mechanic adjusted valves and changed coils but the issue remains

asked by on

My 2002 has check engine light, supposed to be a misfire. The mechanic adjusted valves an issue remains, changed coil issue remains. Mechanic believes it may be a head.

My car has 94000 miles.
My car has an automatic transmission.

Hello. What problem code is stored for the Check Engine light? Hopefully all the plugs and all the coils were changed. If there was oil leaking (from the valve cover gasket) onto the plugs or rubber coil boots, this can cause shorting and a misfire. Unless a valve is burned, it’s unlikely a "bad head" is the cause of the misfire. A blown head gasket could cause a misfire - although other symptoms would be evident: overheating, loss of coolant, white smoke that smells sweet out of the tailpipe. If you would like a 2nd opinion, I would recommend having an engine is misfiring inspection completed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2002 Honda Odyssey has a Check Engine light. It's supposed to be a misfire. The mechanic adjusted valves and changed coils but the issue remains

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My mechanic told me my 2002 Honda Odyssey needs Transmission mounts. Please what's the estimate to order suppiles? Thanks. Peter

Hi Peter. Thanks for contacting us today. You can request an estimate to have the transmission mounts replaced on your Honda Passport (which will include the cost of parts) by clicking this link. Once on this page, simple select the...

Q: Pathfinder runs very rough, backfires.

The most common reason why a car will stop running after a distributor has been replaced is due to the distributor being too loose, causing the vehicle to fall out of correct ignition timing. The misfiring and backfiring issue is...

Q: I want to what is the issue if the code number is P0306?

Hello there, many faults will cause a misfire in cylinder 6 with your 2007 Lexus LS460. You have done great in replacing the coil pack as these can defiantly cause the misfire. Other potential causes are the spark plugs, fuel...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...