Misfire cylinders one and two

STUMPED4NOW

MEMBER
2003 FORD MUSTANG
3.8L
6 CYL
2WD
AUTOMATIC
140,000 MILES

Did a quick engine compartment wash with the high pressure washer after that engine was skipping come to find out I had no spark coming out of it towers one and two on the ignition coil pack so I replaced the crank sensor and the cam sensor and also a coil pack I still have no spark on silver two towers on the coil pack where should I be looking

Friday, May 21st, 2021 AT 11:44 PM

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

Can you get some pictures of exactly where you are not getting spark? Are you pulling the spark plug wire off the coil and seeing if there is an arc?

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

If so then that would point to a coil issue as the crank sensor and cam sensor are not going to cause an issue on one or two cylinders unless there is an issue with the tone wheel.

We should also check for codes to find out if we have other codes then just misfire codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Below you will see a system overview that will help with a better understanding that this is literally just the coil and PCM that control the ignition system.

Let's start with this info and we can go from there.

Image (Click to make bigger)