97 Chevy Suburban, I just replaced my 4L60E transmission with a 97 Chevy Tahoe 4L60E transmission. And now the newer trans shifts hard in gear, what ar my problems?
Replaced my 97 Suburban 4l60E trans, with 97 Chevy Tahoe 4L60 E. My
problem is that it shifts hard into gear, from park to drive. You can also feel the
shifting from 2nd to 3rd and you drive the vehicle.
Sounds like shift solenoids are sticky or have too much resistance, a tranny shop will be able too plug in and test the solenoids and pressures and then tell you if it is a solenoid or control module problem. These trannies do have solenoid issues if not meticulously serviced, and sometimes even when they are, just the nature of the beast.
I went to AAMCO Transmissons shop and they did a couple codes PO748 Pressure Control Solenoid and also PO785 3-2 Shift Solenoid. They told me that, they don't know for sure if that would cure the shifting problem. However, you did say it would be some kind of Solenoid problem. Do you think that these two Solenoids will fix my issues?
Pressure control in itself can cause a shifting problem then combine it with a shift solenoid and you have a double whammy, so it is hard too say if it will fix everything but for sure it can't hurt.
I was wondering if you can replace the pressure control solenoid without removing the valve body? Thanks
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