I have an 04 regular Yukon GMC the problem I have with it it doesn't catch the drive gear ..it catches the reverse gear but when I put it in drive it act like its on neutral
Check the shift Soleniod. http://troubleshootmyvehicle.com/gm/4.3L-5.0L-5.7L/automatic-transmission-shift-solenoid-tests-1
Sounds like sticking solenoids, I replaced the solenoids in my 05 and cured a hesitation in shifting that was beginning to bug me.
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