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post #1 of 4 (permalink) Old 01-05-2005, 11:58 AM Thread Starter
 
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TC failure

i've tried search, haven't found an answer yet, but figured i'd post my probelm as i continue to look.

background:
'97 4.6, with recent tranny rebuild using motorcraft parts and new mech diode owc. about 2,000 miles since this was done. rebuild due to failed owc and burnt intermediate clutches. this is the second time the tranny has been rebuilt, the first was before my ownership--was rebuilt with aftermarket junk, old type owc, and has an aftermarket TC. this TC is still in the car. right now i'm running Mercon V, have a 24,000 cooler, and infilter. during the 2nd rebuild i also replaced the 1-2 accum&spring, 2-3accum&spring, and a new filter.

problem:
ocasionally no movement while cold from a rest. can slow rev the car to 2,500 with no trans responce, feels like it's in neutral. usually after reving once slowly, and then allowing the engine to return to idol, the the car will then take off fine. also ocasionally, when coming to a rest, the engine will bog for a few seconds and then resume it's normal idol.

i think it's the TC starting to go bye bye, am i right or did i manage to some how blow apart my owc again?

thanks for all your help

tom
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post #2 of 4 (permalink) Old 01-05-2005, 04:32 PM
Converter Guy
 
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Converters dont cause occasional no movement. They either move or they don't. The common failures on these are converter clutch failure which will dump debris in the transmission, stator cap failure which will be noisy and dump debris in the transmission, or the fins coming out of the pump which will pack the transmission full of the nastiest crap you have ever seen and ruin the transmission beyond repair.
Alan

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post #3 of 4 (permalink) Old 01-05-2005, 11:38 PM Thread Starter
 
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thanks dirtydog. i didn't think it was the TC, probly just my subconscious looking for an excuss to get a maruader unit. my uncle who is a ford service manager who used to be a tech thinks it's due to loss of pressure--i.e. bad seals. any ideas?
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post #4 of 4 (permalink) Old 01-05-2005, 11:44 PM
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Very possibly, sounds like the rings on the pump to me. I would replace all of the seals if you are having problems. If it has gotten that bad there may be some hard parts damage where the seals ride. Just replace the tranny or rebuild it. Or if you really want to do it right get a replacement tranny and have it built. It could be a clogged filter or something like that,but either way it means the tranny is done. You would be amazed at how many of the early tranny's got replaced at very low mileage under warranty.
Alan

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Last edited by dirtyd0g; 01-06-2005 at 10:33 PM.
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