Question about 1988 Ford F 150

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Check engine lidght is on in my 1998 f 150 truck run rich and lean

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  • Jeanne Singhass
    Jeanne Singhass Oct 03, 2009

    yes p0172 and p0174

  • geaeri95
    geaeri95 May 11, 2010

    can you get a specific P code?

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  • 76 Answers

More than likely a vacuum leak. the pcv hoses on these are known to leak as well as the intake gaskets. need to look at the freeze frame data on a scanner and see if it set the codes when it was first cranked, if so its prolly intake gaskets as they leak and **** air when the engine is cold. a vacuum leak would more than likey set it anytime

Posted on Oct 03, 2009

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