Question about Ford F-150

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My 86 f150 5.0l fuel injected pickup looses fuel pressure under load

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  • Wolf Palmer
    Wolf Palmer Dec 13, 2014

    Hi mark prickett, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
    Do you have a fuel pressure gauge installed to verify this? or is this what you "think" is happening?

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  • Ford Master
  • 14,585 Answers

Replace the fuel filter first. Then the pump. Could possibly be the fuel regulator, but they usually work with good pressure or they are low all the time. Also smell for gas at the vacuum tube of the regulator. Telling you that the diaphragm is bad.

Posted on Dec 13, 2014

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