Th400 Kickdown Switch Wiring Diagram
TH400 automatic trans. Note: This harness is for a carb mounted kickdown switch . $32.00. Transmission Kickdown Harness - 20890. TH400 auto trans, w/o T.C.S.. Note: This harness is for a carb mounted kickdown switch Transmission Kickdown Control Wire - 05755. $18.00.
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Re: th400 downshift switch wiring? The switch needs power from the fuse block (switched power, only on when the ignition switch is on). The other side of the switch goes to the orange wire on the trans. The last picture I posted shows the tab you bolt onto the throttle arm, that rubs against the switch plunger.
A: Yes, the 1967 Firebirds with the Turbo 400 transmissions use a switch activated passing gear, (kickdown). The switch is a plunger style unit which is mounted to the intake manifold near the left rear of the carb. The bracket is secured to the manifold via the left rear carb bolt which holds the carb on the intake manifold.
Description #79. The 400 transmissions have an electric passing gear switch (kick down switch).This switch is located just above the gas pedal. The transmission will never work correctly without this switch.
Please help! this is driving me crazy and I do have all the parts and wiring. I have an original Formula drivetrain and swapped everything into my 70 firebird. I am lost on how to wire and hook up the Turbo 400 trans kickdown wiring. Is there an easy way? - I have the gas pedal bracket and switch/wiring.