99 Ford diesel won't start when cold.

[Bearcamp]

Have a 99 Ford 250 diesel and when it's cold it won't start unless I plug in the block heater to get it a little warm. I was told it might be a relay for the cold start. Now if I crank for a while it'll finally go.

[sldghamr]

i had the same problem years ago, ended being my batteries were bad.

[vitalidle]

Probobly your relay. Here check out this writeup: Troubleshooting GPR & GP's

[Bearcamp]

It cranks over and over but just don't fire. By the way,,,,I did replace the cold start relay and no good. So I don't believe there's a problem with the batteries.

[vitalidle]

If its not your relay then check your glowplugs next by the writeup

[Bearcamp]

Thx for the writeup, I'll check it out.

[sttstroke]

Its just a ford, they dont like cold weather.

[southern7.3]

lol mine started up really hard this morning. Hell I wouldn't want to have to get up and going first thing in the morning when its cold either. Hope ya figure it out.

[IDPisan]

Originally Posted by Bearcamp

It cranks over and over but just don't fire. By the way,,,,I did replace the cold start relay and no good. So I don't believe there's a problem with the batteries.

Do you mean glow plug relay? GPR.

[powerplant]

I think im haveing the same problem it started last week win it first got below 40. I did the check on the glow plug relay last night its dead. Has any one used the stancor 586-902 relay on here hornet says there good. thanks