wont shift into 3rd gear
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wont shift into 3rd gear
2002 F250 super duty 4x4 psd 7.3 181000 miles wont shift into 3rd gear. was fine then it wasn't. Drives good in first and second gear, then it seems like third gears goes to just over 3200 rpm and 50 mph. and then falls on its face. Any ideas would be greatly appreciated.
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An electrical problem would put the trans in FMEM (Failure Mode Effect Management) which would raise line pressure to max (causing harsh shifts) and the O/D cancel light would blink and codes would be present.
A mechanical problem with the solenoids "generally" will not create a trouble code and can be a little harder to diagnose for many.
What needs to be done is a real diagnostician road test this with a proper scan tool so that all parameters of outputs from the PCM can be monitored.
However, this is a common symptom....direct clutch failure due to worn lip seals from age and excessive debris build up in the seals (friction material, etc.)
Most likely this unit will need to come out for a teardown and inspection based on what I see.
Hopefully I am wrong...
A mechanical problem with the solenoids "generally" will not create a trouble code and can be a little harder to diagnose for many.
What needs to be done is a real diagnostician road test this with a proper scan tool so that all parameters of outputs from the PCM can be monitored.
However, this is a common symptom....direct clutch failure due to worn lip seals from age and excessive debris build up in the seals (friction material, etc.)
Most likely this unit will need to come out for a teardown and inspection based on what I see.
Hopefully I am wrong...
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ok update, no codes showing up anywhere, with scanner on shows all normal , shift one, shift 2, all readings into normal range.
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FordF-250Kid
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May 16, 2014 04:38 PM