Repair guides and support for C/K pickup trucks sold by General Motors under the GMC brand, including the GMC Sierra.

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Transmission will only work in low & reverse?

88' gmc, 700r4 transmission won't shift from low to drive.fluid is good. Reverse works. Any ideas?

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My truck did this also. It cost me $385 to learn that it was a fusible link in the steering column. The tranny shop ran a jumper wire/with an inline fuse to correct this problem. It is good to get a diagnostic test done prior to doing any repairs, recommend the purchase of a personal code reader (it will pay for itself quickly)!!!

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rick will be eternally grateful.
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