DieHarder
Senior Member
- Joined
- Nov 9, 2019
- Posts
- 1,435
- Reaction score
- 737
I only did plugs and coils. Formerly had E3 one piece plugs, I know they are a gimmick but they had a really good deal on them when I was doing plugs...anyway, they misfired at high RPM's, so I swapped to Autolite HT1's and installed new Motorcraft coils since the car had 105K on it.
I see now Autolite's have the strap welded into the end of the plug rather than a 1 piece design (Lito told me about it before I saw it myself) so if I do replace the plugs, it won't be another set of Autolite's anyway.
Well some good info here...will have to take a look at cylinder 8 and see what is going on there. I do still have the old coil packs.
Also is there any way to check if a coil pack is defective?
Not sure. Primary method to test is install/swap and again if you remove the two-wire connector and the engine stumbles it was working.
References: https://haynes.com/en-us/tips-tutorials/simple-guide-your-cars-ignition-coil-pack
More in-depth explanation on the circuit:
Last edited: