Question about 1991 Ford F150

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1991 Ford F150 Jumps out of 4W drive sometimes in reverse

I bought this truck to just plow my driveway. I am missing the knob for the floor shift to put it into 4WH or 4WL.
This lever just seems to go forward for 2W and back for 4W, but I don't know where the lever should be for 4WL or 4WH .
Regardless sometimes when in 4W plowing it will grind when I put it in reverse. It is an automatic. I put it in neutral or park dis-engage 4w and then engage and it will work. Does anyone know 1.) Where 4WL & 4WH is regarding the lever. 2.) Why it grinds sometimes when put in reverse.

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  • ted_colburn Jan 15, 2009

    Thanks, I did plow the other night before I got this response and I now know I was in 4wH and it did not grind when I went into reverse. When it did grind in reverse I now know I was in 4wL but it doesn't seem I have to push down on the lever to get it there just straight back toward seat. I will try next time to wait alittle more before changing direction and see if it still grinds. Thanks Again



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My 94 did the same thing. In a automatic, you have to come to a full stop, it usually grinds when in 4L ,And for the shifter, I had to look at mine, 2w is all the way forward to the dash, then 4H is toward you 1 click, and "N" is the next toward you, then 4L , you have to push the lever down and pull backwards. Always come to a full stop when changing gears and wait a few seconds before changing direction.

Posted on Jan 15, 2009


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