Transmission problems

[BTR69]

Originally Posted by Mark Ruset

First thing I would do is to hook up a scanner and check all your input and output readings. I had something similar on a 1999 Yukon and we determined it to be a shift solenoid.

Thanks. Been hoping to get a scanner on it. Have a guy that hopefully will bring a scanner to me in the next few days. Been tough to get my time and his time to work together. I've been thinking about changing the shift solenoids to see if it works, but not ready to throw more money away without checking codes. Another issue with that is, the battery was out for roughly 6 months so i'm afraid the codes may not be saved anymore.