Question about 1998 Ford Windstar

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1994 ford Aerostar sometimes won't start. Usually in wet conditio

When I hook up code reader I get an error code for low voltage for MAF.

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  • herc795 Jan 17, 2009

    It seems to only to this when the weather is bad, rain or snow. I was going to check the MAF out. Is there any troubleshooting I can do to narrow it down to this?

  • herc795 Jan 19, 2009

    Cleaned connector for MAF, it had some corrosion. Put dielectric grease tool. Will see if this works.

  • Jon B
    Jon B May 11, 2010

    weather change donesnt normally effect the MAF sensor.
    Although, it describes your trouble. I am not aware of a way to test it other than with the computer diagnostic, which you have done. It might be cheaper to just replace it, they start at about 12 bucks . That will rule it out.
    If it is only on wet days , I would check for moisture on the electrical plugs under the hood and make sure they aren't getting wet somehow from water dripping around the hood.

  • Jon B
    Jon B May 11, 2010

    The "MAF' is the mass air flow sensor.
    Located at the intake. It will make it hard to start and wont allow for proper adjustment of fuel/air mixture.
    Is that what you wanted to know?


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Sounds like plug wires look for arcing between wires or to ground when wet look at night in total darkness. they sell wire drier but that is a temp fix only

Posted on Jan 24, 2009

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