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I have a 2000 F-350 7.3 with 130,000 miles. For the 3rd winter in a row I am having the same problem. The only other problem i have had was cam sensors 4 & 6 years ago. on colder (below 40 degrees) mornings my truck is very cold blooded. always starts up normally & idles ok. you can hear a slight roughness while idelling. if i let it warm up 10-15 minutes its fine. but if i drive it soon it runs rough and will die if i accelerate much. it looses about 80% of it power during this first few minutes of driving. during this driving it lugs and has little or no power. if i baby it, & have no inclines, i can get it warmed up in 5-10 minutes & its fine.
This morning it was worse than normal. it died 1/2 mile from home. i sat for 20 minutes & it would not restart. finally it restarted, coughed alot of white smoke. after 15 minutes of warming it up, it ran normal.
I had the turbo rebuilt 2 years ago, had all new glow plugs last winter. Any help would be appreciated!!! <!-- / message --><!-- BEGIN TEMPLATE: ad_showthread_firstpost_sig --><!-- END TEMPLATE: ad_showthread_firstpost_sig -->
A lot depends on the overall condition of the motor . (Compression especially) I use 15 w40 with no issues , some will use a 10w or even a 5w , & others use synthetic with good results .