4L80E Pump\Torque Help!

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Sep 25, 2006 | 11:24 AM

1raider

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Joined: Apr 2005

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4L80E Pump\Torque Help!

I have a 95 4L80e and am having issues with it. When i put it into gear seems fine for about 15-20 sec then it wants to stall. Neutral and park are fine. If i go to drive it it just dies, as soon as any throttle is applied. would this be the Torque converter hooking up to early or would it be the pump applying to much pressure. Please help

Sep 27, 2006 | 10:02 PM

mystikkal_69

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From: San Antonio, TX

Car: 1988 IROC-Z

Engine: L98 (350 TPI)

Transmission: MD8 (700 R4) + 3.42 LS1 Rear

it might be the lockup circuit (brake switch not working right) or solenoid sticking on, locking up the torque convertor.

Sep 29, 2006 | 04:08 PM

JDud

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Joined: Aug 2005

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From: Lincolnton NC

I don't know what type of engine/pcm your are running but I know that some pcm's require a vss input from the tranny to calculate vehicle speed/engine load and that goes into your fuel injection calculations...

Does your 4L80E provide the same type of signal to the pcm that your old tranny did?