cold slippage - Ford Powerstroke Diesel Forum
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Old 11-24-2012, 05:22 PM

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cold slippage

hello all
06 ford 250 6.0 here a few weeks ago i had a h&s tunner added (set on mild tune) to turn off my egr for i was headin to the doc b.c been sick for a few weeks.. it was cold out and let it run for a few was cold out and blowing alil bit of snow..after settin there for a few min i said heck with it i was ready to go...pulled out of my drive way goin up hill..and to be honest i was on it alil and felt the tranny slip from one gear to the next..not sure what gear it was in to begin with.. but felt like it did slip..according to the trans and engine temp havent moved off the line yet..Maybe to cold?? maybe should have let the trans temp come up first? or maybe this is something underlining?..or maybe im bein crazy? i know for sure it did slip..dont know y tho
thanks for any help

Last edited by hillbilly-f250; 11-24-2012 at 05:33 PM.
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Old 11-30-2012, 03:13 PM
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mine does the same thing. sounds pretty normal. just let off the pedal when it starts to slip. Should do it no more than once or twice in the morning and not at all for the rest of the day.
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Old 11-30-2012, 06:10 PM
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It shouldn't be slipping unless it is very cold, and then it is more of a controlled slip, not what you described. I have never seen it happen above 0*F unless there was a problem. Perhaps it was a shift flare due to TPS and load. As jtaylor75 said, you can let off slightly to re-engage. If it keeps doing it, check/change your fluid and filters. The next step would be a solenoid check.

Just a thought, was the transmission in a relearn mode?

Last edited by twoicebergs; 11-30-2012 at 06:11 PM. Reason: thought
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