I have a 2001 F150 Lariat with the 5.4l. I'm lookin to do the plugs in it as I just recently got the truck. Does anyone know the voltage output on the stock coil on plugs? I am considering switching them out with some aftermarket ones (accell) I want to avoid paying for something that gives the same voltage output as what I have on there right now. Thanks for the help!

 

Accel suck don't buy them. My motto is if it ain't broke(cop dead/missing etc) don't fix it.Now fresh plugs will be money well spent.....

 

I put msd on my truck,it smoothed out my idle a bit but not really worth the price.
new plugs and get new boots for your stock coils

 

Anything but stock SUCK, ask me how I know. 1,000+ HP trucks still on stock. I am back on stock( BWD) are allright from Oreilly's there alittle cheaper, but the only other ones I'd run.

MSD, WeaponX, Accel, Granatelli, BWD, and Motorcraft are the coils I've ran and If I had too choose a set I'd go with motorcraft, the only reason I jump back to BWD is because I have a LT warrenty on them

 

So pretty much its better to stick with the stock ford coils? Well that saves me $200. Can't complain about that.. i'lll just put that money into hedders etc.. Thanks for the help!!