Replace all plugs and coils and fuel injector car still has 4 misfire.
Feb 7, 2020 at 8:04 AM
Code p0304 02 4 misfire
2013 FORD EDGE
LYDIA WILLIAMS
- MEMBER
- 1 POST
- FOLLOW
Advertisement
Good morning,
Did you check the fuel pressure?
Did you check the compression in number 4?
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
https://www.2carpros.com/articles/how-to-test-engine-compression
Roy
Did you check the fuel pressure?
Did you check the compression in number 4?
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
https://www.2carpros.com/articles/how-to-test-engine-compression
Roy
Images (Click to enlarge)
Feb 7, 2020 at 8:49 AM
These cars along with the Ford Flex have a common issue with the power-train control module (PCM). The PCM's coil drivers go bad and will sometimes melt the coil because the driver will stay stuck on. This is a possibility, but the basic tests noted above should be done first.
Feb 7, 2020 at 10:41 AM
Advertisement