I have a 1999 ford f250 and i am having hard time starting it in the cold weather.What do I do?

would check the vacum pump if one fitted

probly hav a wiring issue--also chec fuses and relays--inspec fuel pressure regulator in engine area--try to get a diagnostic scan from a mobile mech--a haynes manual is a must for detailed troublshootn

Ok you have no pressure from fuel pump to the injectors and you replaced the pump. Sounds as if you need to check or replace the relays which send the signal from your ignition switch to your fuel pump to engage/shutoff. Warm weather area sorry doesn't really apply unless you're in an older carburated vehicle

This engine 'loves' glow plugs! One goes and the others try to handle the amps. Change them and you will have no probs! Other than that, I feel this is about the best diesel truck made!

try adding some fuel additive for cold weather starting

check your glow plug relay! located on the right side head

if wont turnover check small wire going to starter for short or ground out. my f250 7.3 was doing same i found small wire going to starter broken and pinched by frame. berrydalewolf

It is possible that some of the glow plugs might not be working. This will cause a hard start and smoking condition especially in cold weather.

Yes, my 2003 did the same with about 75k miles on it, stranded me on days it stayed under 40F unless I plugged in the block heater the night before, then it started like a champ. Dealer replaced the relay and a control unit under ESP warranty. There's no way to fix this one without throwing parts at it.

you will have to look for your plug
not all came with the frost plug heater but you can add one
i use the ZERO START brand and have had good luck
your local auto parts store should have it
part #
3100043