Hey, looking for some advice on my 2016 ford expedition 3.5L 135k miles.
Had CEL first started under heavy load (60mph, diving uphill, etc) pulled codes and got misfire cylinder 6 and a few random misfire codes. So I replaced the plugs and now I’m only getting a cylinder 3 misfire.
I replace the cylinder 3 coil Make sure the coil was seated on 3 and still getting a misfire without CEL and a P303 code.
So I took it to a local chain shop for a diagnostic. They said it was probably a fuel injector. They however were not confident in that fact so I decided to take it to a Ford dealer.
They old me I replaced the wrong coil, I don’t think I did based on the attached picture for cylinder location, but they said they swapped it to confirm and that it is not a coil issue but that it has a bad fuel injector.
They replaced the bad fuel injector (I asked them to replace all 3 since they had the manifold off and their tech only replaced the one which was frustrating)
Tonight we are driving up a canyon and start feeling misfiring again. Not CEL and it has been 3 days since we picked it up and have not had a misfire until tonight.
I don’t trust the dealer at this point anyone else have any suggestions where I should look next to solve this?
Had CEL first started under heavy load (60mph, diving uphill, etc) pulled codes and got misfire cylinder 6 and a few random misfire codes. So I replaced the plugs and now I’m only getting a cylinder 3 misfire.
I replace the cylinder 3 coil Make sure the coil was seated on 3 and still getting a misfire without CEL and a P303 code.
So I took it to a local chain shop for a diagnostic. They said it was probably a fuel injector. They however were not confident in that fact so I decided to take it to a Ford dealer.
They old me I replaced the wrong coil, I don’t think I did based on the attached picture for cylinder location, but they said they swapped it to confirm and that it is not a coil issue but that it has a bad fuel injector.
They replaced the bad fuel injector (I asked them to replace all 3 since they had the manifold off and their tech only replaced the one which was frustrating)
Tonight we are driving up a canyon and start feeling misfiring again. Not CEL and it has been 3 days since we picked it up and have not had a misfire until tonight.
I don’t trust the dealer at this point anyone else have any suggestions where I should look next to solve this?