Transmissions and Drivetrain Need help with your trans? Problems with your axle?

TCC lock-up issues

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Old Sep 1, 2013 | 02:33 AM
  #1  
actarnoff's Avatar
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From: Los Angeles
Car: 1991 RS/B4C clone
Engine: 355 TPI
Transmission: Probuilt Street/Strip 700r4
Axle/Gears: 7.625 axle with 3.23 gears/TrueTrac
TCC lock-up issues

I just recently had my trans rebuilt, using Probuilt's Street/Strip kit, along with a Edge torque converter. Overall, it is an amazing build. However, the torque converter lock up does not work. My gas mileage is toast on long trips!

I tested the pigtail (pink/black, purple) at the cruise control switch, and it showed a solid 12 volts. I'm not sure if you're supposed to be able to hear the solenoid, I've been told that you should be able to hear an audible click. I can't hear anything when I ground A and F on the ALDL. Also the voltage didn't show any change when I grounded those terminals.

Is there anything else I should be looking for?
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Old Sep 1, 2013 | 06:28 PM
  #2  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: TCC lock-up issues

Key on , you should have power on the purple wire at the connector on drv side of trans
With the connector in place ,if you probe the tan/black control wire should also have 12V which is the control circuit to ground through the ECM.
Grounding that wire (key on ) should activate the solenoid
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