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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 1888
Experience:  Owner at DJ Wilson
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I have a ford 250 pickup with a 5.4 L engine. It keep loping

Customer Question

I have a ford 250 pickup with a 5.4 L engine. It keep loping and the mech tells me I need new coilplugs at about $ 150 each. what is he talking about?
Submitted: 1 year ago.
Category: Medium and Heavy Trucks
Expert:  Curtis B. replied 1 year ago.
the engine has coils for each cylinder. and make the spark for the spark plug. Th e typical repair is only to replace the ones that are missing.
Expert:  Curtis B. replied 1 year ago.
a scan tool shows which cylinder is misfiring. I doubt you need more than two!
Expert:  Curtis B. replied 1 year ago.
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=ford+5.4+ignitioncoils&tbm=shop
Customer: replied 1 year ago.
we have replaced two twice before (about 6 month apart) and now it's missing/loaping again one of the new ones also went bad. is there any way for us shade tree people to test them?
Expert:  Curtis B. replied 1 year ago.
Only with scan tool. which you can buy at any auto parts store.
Customer: replied 1 year ago.
I have ordered the following and will change all the wires and plugs and see if this solves my problem Let me know please if I ordered the wrong parts. It's confusing to say the least regarding the coil wires.
regards
phipps
Customer: replied 1 year ago.
Part Number Part Type Price EA Core EA Quantity Total
1997 FORD F-250 5.4L V8
BOSCH 7980 Spark Plug $ 1.39 $ 0.00 8 $ 11.12
STANDARD MOTOR PRODUCTS SPP39E Spark Plug (Coil-On-Plug) Boot $ 3.01 $ 0.00 8 $ 24.08
Shipping Ground $ 12.24
Order Total $ 47.44
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Expert:  Curtis B. replied 1 year ago.
Parts look correct. But you did'nt order any coils. And the boots come with the coils.

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