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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: sbx22 on April 16, 2012, 12:20:30 am

Title: truck won't downshift
Post by: sbx22 on April 16, 2012, 12:20:30 am

I have a 350/350, both rebuilt. I'm looking to get more oomph out of this combo. One thing is that it is not downshifting at WOT. I've tried adjusting the TV cable but no downshift either. Can someone explain to me how to exactly correctly adjust the TV cable? I've been reading up on this, but doesn't make sense to me. Is there anything else that I should be looking for?

Title: Re: truck won't downshift
Post by: Donut on April 16, 2012, 05:58:48 am

Turbo 350 has a kick-down cable, not a TV cable, there is a difference.  (kick down won't cook the trans.)
How is it connected?  Is it connected in the trans?  If the cable isn't connected in the transmission, then you can adjust until your blue in the face and it still won't work.  IIRC the cable has a small eyelet on it and there is a small hook inside the transmission that it hooks to.  It's been a few years, hope my memory isn't completely gone yet.

Title: Re: truck won't downshift
Post by: sbx22 on April 16, 2012, 09:03:10 am

It is hooked up at both ends of the cable. My question is does anyone know how to properly adjust it.

Title: Re: truck won't downshift
Post by: bd on April 16, 2012, 12:30:39 pm

There are two styles of kickdown cable.  Post a pic of the cable mounting at the intake manifold bracket.