TH400 kickdown question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gk7771 · 02-02-2009, 08:38 PM

1988 Chevy c/2500 with V-6 and a TH400 (all stock).

I had the TH400 rebuilt and now I have no kickdown. The Tranny guy insists that he looked for a swith by the gas pedal and the intake and no switch. I believe in 1989 the computer triggered the kickdown. Is this true in 1988?

I'm sure the tranny was kicking down before the rebuild. Why woudn't it be kicking down after. How can the circuit be tested? If its computer driven where is the wiring ?

Help

02-02-2009, 08:38 PM	#1
gk7771 Registered User Join Date: Aug 2002 Location: Oregon Posts: 6	TH400 kickdown question 1988 Chevy c/2500 with V-6 and a TH400 (all stock). I had the TH400 rebuilt and now I have no kickdown. The Tranny guy insists that he looked for a swith by the gas pedal and the intake and no switch. I believe in 1989 the computer triggered the kickdown. Is this true in 1988? I'm sure the tranny was kicking down before the rebuild. Why woudn't it be kicking down after. How can the circuit be tested? If its computer driven where is the wiring ? Help



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