Hard cold start lots of smoke some missfire. - Ford Powerstroke Diesel Forum
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Old 12-20-2009, 11:56 AM
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Hard cold start lots of smoke some missfire.

My 2001 7.3 has been a great truck but last winter It was starting hard when cold, Lots of smoke and missfire (and no power). I was also at over 8000' (Alta, Utah) most of the time. Once warmed up the smoke and missfire goes away.
I have checked the OBD 2 with a code scanner and theres no codes.
Thought it would be a glowplug, intake air heater, fuel heater element, or something with the PCM. But there is no codes for anything.
Might be fuel filter or a clogged injector????
Its been real cold again and its smoking out everyone when I start up.
Any Ideas????
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Old 12-20-2009, 12:22 PM
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Do you run anti gel? I'm over in northern BC and had that problems several years ago and have not had a problem since I started using Howes Diesel Treat with anti gel.
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Old 12-20-2009, 12:39 PM
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didn't try that but had used some diesel 911 stuff and it's might of got worse after that. Thought it might have loosened up some crud and clogged and injector just a bit.
I'll try some ani gel stuff. Thanks
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Old 01-18-2010, 04:15 PM
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Did you get it figured out. My 02 350 is doing the same thing.
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Old 01-25-2010, 07:02 AM
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Hard Starting after it sets

I have just started having the same issues. When the truck sets for a couple of days it takes a while to get it started. I let the glow plug light go out, then start cranking. It use to start on the first crank. Now I crank it over and over. Sometimes it will fire, but won't start. I will pump the gas pedal a few times which I read not to do, and finally it will start. Don't know if that's what gets it to lite, but it's how I've done it the past couple of times. A lot of smoke, but I figure that is from the extra fuel.

I don't think it's the weather, because it was starting when the temps were a lot colder. Has just started in the past month. Again it is after the truck sets for some time. After it starts I have no problems starting it again. Seems to run fine once it's going.

Any help is appreciated.

Thanks.
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Old 01-30-2010, 08:02 PM
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Does it "romp" or jump if it starts,or does it start and die?
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Old 01-30-2010, 10:18 PM
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Sounds like it might be the glow plug relay.
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Old 01-31-2010, 03:33 AM
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you can pump the peddle all you want and it will do nothing. The computer will not meter fuel til it gets High pressure oil above a fixed point then it will release fuel.
The usual suspects.
Are you using winter fuel additive?
are you using a block heater?
Dino oil or synthetic?
There is a good gp system trouble shooting guide around here maybe somebody will post the link.
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Old 01-31-2010, 07:05 AM
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sounds like a glow plug system issue. check your glow plugs for an open and inspect your gpr, if you havent change it in a while or at all, it may be time.
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