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99 Suburban won't shift properly

2420 Views 1 Reply 2 Participants Last post by  murdog94
I have a 99 Suburban k2500 4x4 with 213000 miles on it. I am having problems with the transmission shifting. I have to let off the gas to get it to shift, and when the transmission downshifts it slips and revs up until I let off the gas a little to let the pressure off and then it goes into gear. I ran a computer diagnostics and it says the shift solenoid is bad, the code was PO751. Has anyone had this problem before or knows where the solenoid is to change it.
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The valve body has all of the solenoids mounted on it. im not to sure which is the shift solenoid however since i have just changed the whole valve body rather than mess with it.
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