Question about Ford F-250

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My 1986 F250 (4X4, automatic, turbo) has begun to leak diesel from various points surrounding the fuel injectors and associated fuel return lines. I had a visual inspection of the truck and the mechanic told me to replace the return lines (kit:$140.00 labor:$350.00). I just wanted to know if something else might going on that would cause the whole fuel system to start leaking at the same time. I am hoping to adress the root of the problem, not just start replacing parts and work backwards.

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  • corymbrush Jul 19, 2010

    Thank you. This solution makes sense. Why couldn't my mechanic have had that insight?



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No the mechanic is right, this problem is caused by the new (in use about 12 years) clean burning diesel fuel mandated by the Feds, it eats up all the injector seals, the new seals are Viton synthetic rubber and are not affected, ford was doing this repair for free for years as it is a fire hazard, we did hundreds at my Ford dealer, I really suggest u have the Ford dealer repair this, there are other parts that may need to be replaced as well, the injector pump seals fail also.

Posted on Jul 19, 2010

  • Marvin
    Marvin Jul 19, 2010

    I know this info because I am a 35 year veteran Ford dealer service tech (retired now)



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