Problems With Cold Starts.

now it wont as in its not cold now? When its cold you get more fuel kinda like a choke if you will being a power stroke they love cold air.
so its normal it should run like that tell it gets warm let it idel for a couple min.

Hello, add some cetane booster to your diesel fuel & connect the block heater. Sounds like the glow plugs may be getting a little weak & not preheating the cylinders as they should.

glow pug indicator and glow plug themself are 2 seperate system
test for power at the glow plug harness conector 1 each side over valve cover
test light clamp on batery neg test each wire going to relay for power on both side
then quick check on glow plug end test light clamp on positive test all wires
going to glow pug on each side f this does ligtht up the test light system should be o.k.
for the FICM i have used a hair blower on hi to warm the surface of if to start up a few of
these motors to get them back to the yard for replacment afterward
run a ffeet of these from 250 to 550 lots of problem and work 26 units
good luck

just had to have the fuel injectors replaced, we thought it was the glow plugs but it wasnt. when it starts does the engine sound like its knocking real loud and have less power when you try to go???

you need to have the engine coolant switch checked,since the computer relies solely on sensors,the ect tells the computer how cold or hot it is so the computer will make it a rich or lean mixture to start the engine,if it tells the computer that it is 75 degrees the computer will lean the mixture like starting a car in the winter without a choke.

if it gets that cold you will have to plug it in, if equiped with an engine block heater

Being you don't say what eng you got, but with your problem I got to think it's got to be a 6.9. You've got a cold start problem. Either the 'Glow Plug' controller is bad or the glow plugs themselves are bad. Either way you need to take to someone who knows wnat they are doing. Don't mean the 'Ford' Dealership. They normally cost too much. Used to work for one. Just someone that you know that deals with desail engines.

I believe you have a glow plug problem. How long does the (wait to start) light stay on before you try to start it.

Mike

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.

Need to check that glow plugs are working to spec and getting good power source