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Old 08-30-2007, 10:05 AM
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Exclamation please help!!!!

i have a 95 spd. flashing the code p1748. epc malfunction. i have replaced the solenoid pack in the tranny. flashed the pcm, replace the map sensor, and i am still getting it. all wiring is good. running out of things to try. help if you can
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Old 08-30-2007, 01:21 PM
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bump bump bump
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Old 08-30-2007, 01:29 PM
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1748 is a" pressure control solenoid A" Im assuming thats with the tranny. How does it shift right now?
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Old 08-30-2007, 01:30 PM
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Here is another bump for ya, a tech should be along soon, sorry to hear that bud, hope you get things worked out....
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Old 08-30-2007, 04:38 PM
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the line pressure in the tranny jumps from 5 to 128 at idle. and it throws this code. driving the truck really aint that good. shifts hard, early or soft and late. the line pressure is contantly going up and down. shift in and out of od. its like it has a mind of its own
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Old 08-30-2007, 04:51 PM
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How does the engine run?
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Old 08-31-2007, 08:50 AM
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the motor runs good. never had problems out of the motor.
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Old 09-01-2007, 05:14 PM
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bump bump bump can anyone help me on this one. i have also replaced the gas pedal. and still doing it.
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Old 09-01-2007, 05:56 PM
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bump for you!
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Old 09-06-2007, 05:41 PM
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ok here is an update. i have replaced the pcm, i have continuity between the plug that plugs into the tranny( solenoid pack) and the harness that hooks up to the pcm. and the truck is still doing it. has anyone ever heard of and input sensor messing with the epc. like a throttle position sensor, cam position sensor, mlp(multiple lever position,,,i think) sensor. any input would be greatly appreciated
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