Cold Start Problems - Ford Powerstroke Diesel Forum
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Old 02-17-2010, 03:13 PM
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Cold Start Problems

Having problems with cold starts in my 02. Sometimes takes several minutes to get running, once it fires it runs fine. If it gets below about 20* or sets for more than a day in 30* or below temps, I have to plug it in or its a pain to get running. Truck has about 165,XXX miles on it, stock.
Recently replaced:
both batteries
starter
both fuel filters
glow plugs
glow plug selenoids

I'm just not sure what all else I can check out.
Thanks, Jon
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Old 02-17-2010, 03:16 PM
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how long are the GP's on before you try to start? and is this a new problem, or did you replace the GP's and relay because of this problem?
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Old 02-17-2010, 03:25 PM
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I replaced the glow plugs and relay because of it not starting. I leave them run till the wait to start light goes off. I've tried turning the key on and off and letting the glow plugs run 4 or 5 times and still no change.
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Old 02-17-2010, 03:29 PM
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well, you may have some tired injectors....does she start good if you plug her in? You might try switching to 5-40 oil, the oil at cold temps is not so thick with 5-40.....and one more thing...when you're trying to start her do you get alot of white smoke that smells like raw diesel? And try letting the GP's stay on for about 30-45 seconds before trying to start, see if that helps
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Old 02-17-2010, 03:31 PM
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yes, starts good if I plug it in and I get "some" white smoke when it starts(not plugged in)
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Old 02-17-2010, 03:41 PM
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If the GP system can be eliminated as the source of hard starts, then I'd start looking at Injectors being tired.......a buzz and contribution test may help. But i'd thoroughly diag the GP system before hand...jump the terminals on the GPR to make sure the GP"s are on...etc....
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