97 E4OD wont lock up - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 3 (permalink) Old 04-27-2012, 02:44 PM Thread Starter
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97 E4OD wont lock up

I have been having problems with my tranny and had to park the truck to prevent further damage. i took it in 9 months ago and had a re build and got screw by a local shop who now claims that there is nothing wrong with the truck. it throws a P1728 code and the convertor does not lock up in any gear. any help is appreciated as i fired my trans guy and am taking him to court over theft of services. i paid for all the bells and whistles and i think i got #### on. someone mentioned that the solenoid pack could have gone out. it has a 9month old precision convertor the heavy duty unit. please help i am tired of driving my jeep.
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post #2 of 3 (permalink) Old 04-28-2012, 03:09 AM
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Location: SE Florida
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Re: 97 E4OD wont lock up

There are several things that could cause it. A stuck torque converter clutch control valve in the valve body, a bad torque converter clutch solenoid, or my best guess, a damaged or missing seal on the input shaft.

Former Ford Automatic Transmission Engineer

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post #3 of 3 (permalink) Old 04-29-2012, 08:50 PM Thread Starter
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Re: 97 E4OD wont lock up

as of yesterday i replaced the solenoid pack. next step will be to look at the valve body and see if the control valve. i really dont want to have to drop it again unless i am putting a new unit in and throwing the old one through the window of shift rite transmission in corpus christi tx. we tried with a switch and wire manually locking the convertor through the solenoid pack and had no luck. where is that valve located in the forward or rear valve bodies?
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