Question about 2004 Ford F150

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  • terseo
    terseo May 11, 2010

    What is the code number you get? PO????. I can help more if I knew the copde number. If it truly a vacuum, leak you can spray starting fluid on your vacuum hoses while it is running. When you notice an increase in RPM you have found the leak. Start with that first or look the code up on the net. Here's a good link for you.


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If you have a vacuum leak, lift the hood and listen for a whistling sound. If none detected, gently move the vacuum hoses and see if your motor surges or starts to die. Last resort is using carb cleaner spray. Sparringly, spray quick, short bursts in and around vaccum lines. Never spray alot at once and not over and over. Let the spray evaporate. This may lead you to the leak by being patient. Engine will surge when you are close to the leak.

Posted on Sep 29, 2009

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