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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


TH400 kickdown

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G3GM :: G3 Tech :: Engine & Driveline

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TH400 kickdown Empty TH400 kickdown

Post by Shaunaconda Sat Aug 17, 2013 11:03 pm

Hey guy's, I just got a sweet '75 El Camino...I'll post some pics and details when I get a chance. 454 runs good and strong, only problem is it doesn't seem to downshift at highway speed when I punch it. At slower speeds, about 50 mph or less it kicks in pretty strong. So just wondering about this? Thanks!
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TH400 kickdown Empty Re: TH400 kickdown

Post by pila Sun Aug 18, 2013 9:34 pm

The TH400 has an electric "kick-down" There's usually a kick-down switch mounted near & operated by the gas pedal, or by a cable hooked to the gas pedal etc. It should be adjustable, to get it where you want it to work.

The electrical kick-down is accomplished by an electric solenoid valve in the transmission, by the way....

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