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roy
roy, import/domestic specialest
Category: Ford
Satisfied Customers: 6190
Experience:  ASE master tech for 40 years
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86 f-250 6.9l with manual 4 speed tranny. It used to pull

Customer Question

86 f-250 6.9l with manual 4 speed tranny. It used to pull anything I wanted, now it's loosing power on the top end. Starting off with my camper it's fine but struggles from about 45 to 60. Empty it has no issues.
JA: Will the headlights turn on? Is the battery fully charged?
Customer: 2 New batteries and light are fine.
JA: Are you fixing your F250 yourself? What have you tried so far?
Customer: Have not started anything yet, I am very good gas engine mechanic but limited on diesel, I am looking for good advice before going in blind and parts changing
JA: Anything else you want the mechanic to know before I connect you?
Customer: not at this time
Submitted: 2 months ago.
Category: Ford
Expert:  roy replied 2 months ago.

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

Expert:  roy replied 2 months ago.

first thing to do on this type of complaint is to check the fuel filter. I would replace it to start.

also, any fuel leaks between the injector pup and injectors???

Roy

Expert:  roy replied 2 months ago.

do you still need help???

Expert:  roy replied 2 months ago.

any update