700r4 Lockup Wiring Diagram Lock up plug fig. 2 oil pressure switch in the 4th gear port. introduction there is no need to drop the pan as everything is installed externally, but you must have a working factory lock up harness and solenoid for the kit to operate. the kit functions by monitoring fourth gear oil pressure at an external oil pressure port. external wiring. There are 2 styles of solenoids used in the 700r4. first is a 1 wire self grounding unit that only requires positive (12v) feed to it. the other is a 2 wire unit that requires a ground and a positive feed. either 1 or 2 wire will work but changes what pressure switch is required. there are 4 different pressure switches used in 700r4s & there.
700r4 Lockup Kit Wiring Diagram So my truck came factory with the 700r4. from the factory 3rd gear lockup was controlled by the vacuum switch, and over drive is always locked, unless the brake pedal is depressed. so all i really did was disconnected the vacuum switch wiring and wired it to a switch so i could manually control 3rd gear lockup. Gm 700 r 4 4th gear lockup kit installation instructions. the jet 4th gear lockup kit allows use of a 700 r4 transmission in a non computer vehicle. the kit can also be used to bypass the 3rd gear lockup feature on vehicles originally equipped with a 700 r4 which will aid in towing. allow vehicle to cool before beginning work on transmission. Step 2: locate the transmission connector. next, locate the transmission connector on the driver’s side of the transmission. this connector is typically round or square in shape and contains several pins. referencing your wiring diagram, identify the correct pins that correspond to the torque converter lockup system. See all 27 photos. the 700 r4's 2,500 rpm stall converter wouldn't lock up, resulting in excessively high rpm and reduced mileage at freeway speeds. although the rod was spirited around town.
Tci 700r4 Lockup Kit Wiring Instructions Step 2: locate the transmission connector. next, locate the transmission connector on the driver’s side of the transmission. this connector is typically round or square in shape and contains several pins. referencing your wiring diagram, identify the correct pins that correspond to the torque converter lockup system. See all 27 photos. the 700 r4's 2,500 rpm stall converter wouldn't lock up, resulting in excessively high rpm and reduced mileage at freeway speeds. although the rod was spirited around town. Step 3. connect the red wire to 12v power source and the black wire to ground connection located in step 2. reversing the polarity of these two wires will damage the converter lock up control module and void the war ranty. route wires so they cannot become tangled in any mechanisms (brake pedals, a\c, heater controls). Details. this easy to install lockup wiring kit for 700r4 and 2004r transmissions from tci allows hands free, automatic activation of the torque converter clutch in 4th gear under stable engine operation, and disengages the clutch when accelerating or down shifting. this universal lockup wiring kit is needed when installing a gm 700r4 or 2004r.
700r4 Lockup Kit Wiring Diagram Step 3. connect the red wire to 12v power source and the black wire to ground connection located in step 2. reversing the polarity of these two wires will damage the converter lock up control module and void the war ranty. route wires so they cannot become tangled in any mechanisms (brake pedals, a\c, heater controls). Details. this easy to install lockup wiring kit for 700r4 and 2004r transmissions from tci allows hands free, automatic activation of the torque converter clutch in 4th gear under stable engine operation, and disengages the clutch when accelerating or down shifting. this universal lockup wiring kit is needed when installing a gm 700r4 or 2004r.
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