NO man 1, man 2, D, OD, or reverse (all gears gone) - Ford Powerstroke Diesel Forum
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Old 01-09-2012, 06:07 AM
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NO man 1, man 2, D, OD, or reverse (all gears gone)

2003 f350, 4x4, 260,000km (162,500mi), trans flush and pan filter 200km(125mi) ago.

Problem: no trans operation what so ever. Fluid level and condition perfect (flushed 200km ago). NO debries found in pan at time of flush. no codes at moment.

How it happened. I was diagnosing a cold start misfire, after a while required to warm engine up, so placed in reverse and reved up a bit (like a stall test) to create some friction and warm things up. rear tires started spining so backed off throtle a bit, I have done this on many trucks and no problems up to this point, then started hearing a squeal (sounded almos like and exhaust leak) then all of a sudden truck stalled, trans temp got only up to 170 deg F. placed in park, engine started fine, but all gears gone. I will be removing the pan and inspecting everything.

possibilities: of the top of my head, i suspect low line pressure, pump failure, input/intermidiate/output shaft splines.

Any one has had this "no gears" concerns? if so what was the problem.
thanks.
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Old 01-11-2012, 06:02 AM
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update:

tested line pressure 0psi. removed pan, nothing to be concerned. filter was still atached to valve body. no metal shrapnal. removed transmission. removed torque converter. coverter to pump drive failed, requires new pump and torque converter. will dissasemble entire trans. and rebuild will update if there is any more damage.
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Old 01-29-2012, 06:09 PM
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That sucks... I feel your pain. I got lucky and only my Torque Converter let go, the pump was fine. Just finished my tranny tonight. Hope yours is up and going soon!
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Old 02-07-2012, 05:45 AM
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OK so torque converter has been damaging the pump for a while and eventually the pump gear gave away and seized (hense the engine stalled) it freed up after so that is why the engine started but it did not build line pressure in transmission.
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