How do you test the coils .I have no cel and I seen somewhere you could check them with a mulit meter.I think i messed one up because i washed the engine.Found out that is not a good thing to do.5.4 is new to me move up from . 4.2 f-150 to a 5.4 f-250.Thanks in advanced Dan

 

What year and model of truck?

Anyway... the link below will help -

http://autorepair.about.com/cs/troub.../aa062902b.htm

 

It is a 2001 Ford f-250 with a 5.4 Thanks