Question about 1999 GMC Suburban

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Help...94 Suburban 1500 auto 4x4, I am changing

Help...94 Suburban 1500 auto 4x4, I am changing the gas engine to Diesel, My helpers are saying the transmission will not work Because it is computerized, What will cause it not to work? I think the kickdown might not because No cable from accellerator to Transmission....Any help Please.....

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I'm pretty sure GM built your truck with the diesel engine as an option so there is a way to make this work. The trans shifts are based on a combination of ground speed and engine RPM so as long as the computer is able to get these signals your trans should work. I put an early 90's overdrive in a mid 80's truck and didn't plug the wiring in because the trans used a 4 wire plugin and my truck only had a 3 wire. It worked fine, even overdrive.
A little jury rigging and ingenuity should find a way to attach your current kickdown cable to the accellerator on the diesel pump. GM probably has a bracket to make it fit. Check with the parts guys at the counter. Hope this helps.

Posted on Oct 03, 2009

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