99 ford 7.3 long time to start and smokes a lot

[Gallegos276]

I have a 99 ford f-250 and it started smoking a little when I would start the truck a few weeks ago. Now 2 days ago it was 10 degrees out I tried to start it and it would act like it wants to start but never stayed running. ( I have really fast cranking) than I figured maybe my fuel was frozen so later after work I tried again and it still wouldn't start. My dad told me on his truck he just pushes the throttle 1/8 " an his starts. So I went out and tired that. Sure enough it worked and my exhaust pumped out a puff of black and started rolling out white smoke for about 2 minutes. After about 5 min my exhaust was totally clear . 1 hour later my truck had to start the same way and did the same thing with the smoke. I have been reading many forms and see it from one extreme to the other. Any one see this before and can help. really don't have a scanner my truck is not throughing a check engine light either . 207000 miles running Rotella t6 synthetic blend with hotshots in the oil, oil is black.
Thanks
Ryan

[Sticker Monster]

Originally Posted by Gallegos276

I have a 99 ford f-250 and it started smoking a little when I would start the truck a few weeks ago. Now 2 days ago it was 10 degrees out I tried to start it and it would act like it wants to start but never stayed running. ( I have really fast cranking) than I figured maybe my fuel was frozen so later after work I tried again and it still wouldn't start. My dad told me on his truck he just pushes the throttle 1/8 " an his starts. So I went out and tired that. Sure enough it worked and my exhaust pumped out a puff of black and started rolling out white smoke for about 2 minutes. After about 5 min my exhaust was totally clear . 1 hour later my truck had to start the same way and did the same thing with the smoke. I have been reading many forms and see it from one extreme to the other. Any one see this before and can help. really don't have a scanner my truck is not throughing a check engine light either . 207000 miles running Rotella t6 synthetic blend with hotshots in the oil, oil is black.
Thanks
Ryan

fast cranking might indicate low compression. might be the first thing to check.

SM

[Gallegos276]

I guess I wouldn't say fast cranking than It would be normal Good call though I will probably have that done. If a glow plug or the GPR relay went out would that cause white smoke? I also heard I could have leaking injector Is there anyway to check that My truck is not missing
Thank you all for your time

[Gallegos276]

Ok so I just got home and tested my gpr and it has power to both sides of the terminal when the key is on and the front small wire. after it sat for a minute I lost power to the big terminal and both little wires got power( I used a test light). It's 45 degrees and my truck fired up pretty quick blew a lot of white smoke than keep down to a little and never cleared in about 8 minutes I had it running. I revved it and at rev it was clear.

[Gallegos276]

Since no one decided to post I figured ill help out the guy who's in need. Turned out to be glow plug relay not producing enough volts so don't use a test light and 4 glow plugs out.