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  #1  
Old 10-29-2010, 08:40 PM
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Cold Weather Problems Help

Ok i have a 96 obs 7.3 and a 01 7.3 and a friend has an 95 7.3 and they all do the same thing in the cold. If you start the truck and go not pluged in it will runs about a 100ft die and will not restart unless you hold to floor and keep there till it starts. once started you haft to keet above 2000rpm or it will die plus a lot of white smoke comes out of the tail pipe. let it run for five or so mintes its ok and fine rest of time driving till it cools all the way off. to by pass this plug it in or let run in drive way for ten or so min. it starts no problem but this must be a some thing others have had happen. what do i need to fix??? Thanks JJ
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Old 11-01-2010, 09:26 AM
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suprised no one has responded yet:

how cold is it when this happens?
how old is the oil?
what weight is the oil?
and im going to 'assume' that after waiting on the glows the initial start fires up properly correct?

my thoughts are EBPV sticking, compression issues, injector o-rings, or injector stiction.

when its really cold here (anywhere under 10*F) ill have to throttle to 1k rpms for a minute or so to keep it running. but i dont run a low weight oil, which would probably take care of my problem.
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Old 11-01-2010, 10:13 AM
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After it get below 40F. Yes after glows and i let run 1-2 min but if its not five to ten it dose this. 15-40 and yes i was begining to think no ones was going to reply. Thanks
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Old 11-06-2010, 01:42 PM
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Do i smell or some thing ??? I had a shower last year. HA HA
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Old 11-06-2010, 01:56 PM
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  1. check GP system
  2. if runs okay when plugged in, but not when it isnt, you have a problem, usually GP system is at fault.
  3. switch to a lighter weight oil may help....
  4. alot of problems are also caused by tired injectors.....
look here : Winter Operation, Hard Starting, Hissing Sound Etc...

Last edited by ianstew; 11-06-2010 at 02:01 PM.
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Old 11-06-2010, 02:44 PM
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Thats what I did first glow plugs all new harnesses gaskets Mabe injectors two have 200,000 miles one almost 300,000

Thanks for your in put
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Old 11-07-2010, 07:10 AM
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Do you guys fill the trucks up at the same station? Have you checked for water in the fuel? Could it be possible that teh fuel is gelling in the fuel bowl untill things warm up and it thins out?
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Old 11-07-2010, 12:40 PM
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colder temps are typically required to get fuel to gel.......and unless the fuel heater is disabled, that shouldnt be a problem
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Old 11-07-2010, 12:54 PM
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We don't the two i owen do i've tryed others same problem one station did gel up one of my trucks never went back after a day of lost plowing. I run power service in the winter. do the heaters go bad where are they and how do you test. thanks
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Old 11-08-2010, 05:56 AM
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do you have access to AE?

i would suspect the EBPV malfunctioning for one, if it starts with no trouble then i doubt its the glows or relay.

i wonder if you have soem sort of gunk if your fuel system somewhere, water or something else...
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