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white smoke and running rough

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Old Feb 21, 2008 | 07:40 PM
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lincolntech8105
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Question white smoke and running rough

1996 ford f250 7.3 liter 5 speed

starting cold, and when it starts to run it runs really rough and smokes white till it clears up? tends to run like this for about 20 to 30 seconds.

210,000 miles, new injector o rings, straigh pipe, 80 hp chip, shimmed fpr
 
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Old Feb 21, 2008 | 07:46 PM
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Sounds like Glowplugs or GPR....
Start here https://www.ford-trucks.com/forums/4...ht=white+smoke
Let us know if you have more questions

-Robb
 
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Old Feb 21, 2008 | 07:48 PM
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Just replaced a week ago, glow plugs and relay
 
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Old Feb 21, 2008 | 07:52 PM
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Originally Posted by lincolntech8105
Just replaced a week ago, glow plugs and relay
It could be the quantity or quality or weight of the oil......(among other things....) check that first....
 
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Old Feb 21, 2008 | 07:53 PM
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Did you use stock GPR? or upgraded? also How are condition of Batts? Cables? How cold is it getting there? Here in NH (ambient around 20 or colder) I wait 30sec-1min after the WTS light to go out, gives the GP's more time to do their thing

-Robb
 
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Old Feb 21, 2008 | 07:54 PM
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I change oil every 5000 miles with 3 gallons of rotella and a half gallon of lucas snythenic, just changed it last week
 
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Old Feb 21, 2008 | 07:56 PM
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upgraded relay, new batts last month, cables good condition, temp 10F to 35F
 
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Old Feb 21, 2008 | 07:58 PM
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Originally Posted by lincolntech8105
upgraded relay, new batts last month, cables good condition, temp 10F to 35F
Are you waiting 30+ seconds after the WTS light goes off to crank? If I try and start mine right after the light goes out It smokes some
 
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Old Feb 21, 2008 | 08:01 PM
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but mine runns like it has a cam from hell when you start it plus tons of white smoke
I wait 1min or more to start it, fuel mileage dropped at least 4 miles a gallon
 
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Old Feb 21, 2008 | 08:06 PM
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Ditch the lucas!! its too thick! our injectors are fired by high pressure oil. your block heater will help as well. Changing to straight 15w40 diesel oil may help. 5W40 will help.
 
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Old Feb 21, 2008 | 08:07 PM
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but it never did it till now, I have always ran lucas in it since 150,000 miles no problems till now. Ran two winter with the lucas
 
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Old Feb 21, 2008 | 08:15 PM
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Lucas has been know, dare I say proven, to not be good for the powerstrokes. I think you need to verify your GP relay and GP's. make sure you have full power getting to the glow plugs. if they are working as they should plug the block heater in. If it starts good you need to change you oil.
 
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Old Feb 21, 2008 | 08:17 PM
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you don't know what the hell you are talking about

U are not listening to what I am saying

U are hell bent on what u think lucas does
 
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Old Feb 21, 2008 | 08:20 PM
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I have full power on the glow plug system, fresh oil

maybe sticking injector needles???
 
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Old Feb 21, 2008 | 08:20 PM
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Originally Posted by lincolntech8105
you don't know what the hell you are talking about

U are not listening to what I am saying

U are hell bent on what u think lucas does
Yo relax man.... WERE JUST TRYING TO HELP. It's talk like that will get you kicked off the board.... Tim is a VERY KNOWLAGABLE GUY... N'uff said
 
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