Coil pack issues?

[Ralo]

My car is only acting up under a load and I'm wondering if anyone else had coil packs cause this issue. My car idles fine

 

[Jomo1994z71]

I would start with the plugs and then coilpacks.
I swapped my coilpacks in a buddy's Terminator that was having similar issues and the hesitation was gone. He ordered a few new ones and figured out which one was bad by process of elimination...
Good luck

 

[Ralo]

Already done the plugs

 

[mrpork]

have you washed your engine latley?

 

[Ralo]

No I washed my car and I don't have the flaps on the hood vents but I don't spray directly into them and have never had issues.

This all spawns from here
http://www.svtperformance.com/forum...d-40-2nd-but-didnt-seem-pull-like-should.html

 

[03snakeminated]

updates??

 

[Lstruck03]

i recently had to change my coils. My car would bog extremely hard when going WOT. Sometimes it would even die. I did a COP stress test with fords software (i work for a ford dealer) and found multiple coils failing. I replaced with a spare set I had and magically, she was fixed.

 

[20SVT03]

yeah the coils have problems on every ford vehicle. unless its a 3V then 99% of the time if you have a missfire its atleast one coil.

 

[Brutal Metal]

yeah the coils have problems on every ford vehicle. unless its a 3V then 99% of the time if you have a missfire its atleast one coil.

:shrug:

 

[Ralo]

I changed the two coils that were above the plugs that looked like they had fouled and it seems to be back to normal. Wish I wasn't used to my power level lol.

 

[Ralo]

I could also tell it was a coil by putting it in a high gear and flooring it, putting it under a heavy load. It would misfire pretty good then