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Ask Ron Your Own Question
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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Cly 5 and 7 miss fire changed coils plug and injector on 5

Customer Question

cly 5 and 7 miss fire changed coils plug and injector on 5 and 7 stll misfire cad code foe cam acatures do you think it jump time
JA: Have you seen the misfire code before? Has the car been stalling?
Customer: one week ago changed coil and plug on 5 and 8 ran good for week
JA: What is the model/year of your Ford?
Customer: 2005 f150 5.4
JA: Are you fixing your F150 yourself? What have you tried so far?
Customer: changed coils and plugs all cly and injector 2 and 7
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 11 months ago.
Category: Ford
Expert:  David Gieswein replied 11 months ago.

Good morning my name is ***** ***** I can help you diagnose your concern. Have you tried a compression test on the cylinders of concern?

Expert:  HDGENE replied 11 months ago.

Hello, does the engine misfire at idle or while driving or is it just randomly setting these codes? How many miles are on the engine? Have you tested for good spark and injector pulse on these two cylinders?