I have 2004 f-350 6.0 diesel. I have an extremley hard time starting the engine when its cold. I almost kill the battery trying to start it. it cranks cranks when i pump the pedal it will grab then stall numerous times then eventually starts. once the engine is warm it runs great and starts immediatly with no problems at all until it cools down again. i noticed a little oil coming from the glow plug is this coincidence or possible cause.

thanks any help would be great

 

Don't know what part of the country you're in , but if you don't get it straightened out come cold winter you are gonna go thru some more batteries and maybe another starter.
It does sound like the glow plug system is not working. Most of the time the glow plug relay isn't working.

 

I am testing the glow plugs on my f350. i pull the wire off the glow plug turn the key I get juice to one or two the wire holes for about 1 or 2 seconds the hear a little grind noise come from under the battery and the test light goes out.

any ideas??????