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O/D light flashes then 1&2 gear kind of jerk into gear all the other gears shift fine and when the o/d light is not flashing gears shift fine we just orderd a big transmission cooler what else do u think it can be please help... JOIN NOW TO REMOVE TRACER

99 ford 350 dually 7.3

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Old 08-24-2013, 03:01 AM
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99 ford 350 7.3l

   

Question 99 ford 350 dually 7.3

O/D light flashes then 1&2 gear kind of jerk into gear all the other gears shift fine and when the o/d light is not flashing gears shift fine we just orderd a big transmission cooler what else do u think it can be please help
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Old 08-24-2013, 07:41 AM
joebob3093's Avatar
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joebob3093
   
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Could be bad shift solenoids

joebob3093's Sig:{95 F250 Powerstroke XLT} 5 spd with Haisley machine street drag clutch, injectors by Farmers Diesel, tunes by tyrant diesel, S468 with Irate diesel T4 mount, TE Dual pumps, AFE stage 2 intake, custom intercooler setup, Custom 4" duals, Irate diesel electric fuel, D60.
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Old 09-11-2013, 12:35 PM
Smokey Freedom's Avatar
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*2 priuses in a row in the right lane* "Thank you sweet Jesus!" *Whoof*

   

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Torque converter locked up. Shifts hard and when it wont unlock it flashes the OD light. I have a lock up switch on my TC and thats exactly how it acts when it wants to unlock and the switch overrides it

Smokey Freedom's Sig:99 F350 Lariat dually, 6" skyjacker lift, 22.5 conversion kit, torque arms
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