Join Date: Dec 1999
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HELP! C6 won\'t shift into 3rd Gear!
Hey guys: I got another problem. I helped my buddy swap his Manual Trans. for a C6 (in his 83 F150 4X4, I-6 Carbureted). It was a big job, but we got it done. The C6 Was from a Junk Yard but supposedly only had 100K Miles on it (but we don't really know the history of the trans. except that it came out of an 88 Bronco). The Truck shifts fine, except it won't go into 3rd Gear. All other gear positions work great. He installed a new vacuum modulator on the Trans and hooked the line up to the PVC Tee on the Valve Cover. Is that where the vacuum line should go? I thought that it might be designed to work off of full manifold vacuum. I appreciate any tips you can offer. Thanks.