Aftermarket Coil replacement

[2003XLTSpencer]

Hello all, I'm replacing my coils on my 2003 Expedition XLT, 4.6 and am inclined to purchase a $50-$60 set instead of OEM or Accel. I'm a low mileage driver. Any suggestions or thoughts?

 

[Lostneye]

Take your chances. They work out for some but QC is def not there. Higher DOA and higher failure rate over time. Accels are not much better, they are a complete waste of money IMHO.

 

[2003XLTSpencer]

Thanks for your prompt reply. I will take your opinion in high consideration. From what I'm reading on the forum, the coils are a imminent problem with these motors.

 

[R&T Babich]

... From what I'm reading on the forum, the coils are a imminent problem with these motors.

I have a 5.4L 2003 Expy and a 6.8L 2002 Exped that use the same coils.
The only coils I have had to change was one that cracked at the base of the connector and another that had a broken tab after the spark plug blew out.
The boots and springs have been problems.
You can get a NAPA boot/spring 702418 for under $8 ea.
I change the plugs,boots & springs every 50k and retorque the plugs after 10k.

 

[Lostneye]

I have a 5.4L 2003 Expy and a 6.8L 2002 Exped that use the same coils.
The only coils I have had to change was one that cracked at the base of the connector and another that had a broken tab after the spark plug blew out.
The boots and springs have been problems.
You can get a NAPA boot/spring 702418 for under $8 ea.
I change the plugs,boots & springs every 50k and retorque the plugs after 10k.

If the COPs are not bad a spring/boot change makes more sense than changing them on just preventative maintenance. Especially over cheap replacement COPs.

 

[2003XLTSpencer]

Over the weekend, I replaced coils 1 and 7 which were identified from the DTC codes. I did inspect the boots and they seemed fine with no apparent cracking or dry rot, etc. The symptoms have been eliminated. Thanks for your replies.

 

[EliteFord]

the shop is telling me to replace all of them, do you guys recommend this or can i just change the one triggering the code? thanks.