Question about 1991 Ford F250

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Wait to start light not coming on and now will not warm by plug

I have a 91 ford 250 diesel. The wait to start light has not been coming on for a while. With warm weather it wasn't a problem. I've been plugging it up at night and long stays but now that has quit working.

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My novice opinion would be to check on the glow plugs. I think that year has them.

Posted on Dec 15, 2008

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Change the relay /timer unit ,after checking the big fuses,cant tell you where unit is as never seen ford 250 ,not common here in spain .

Posted on Nov 17, 2008

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