Transmission Slipping - Code P1870

[quaijai]

Can anyone help? I have a 96 Impala SS that has a code of P1870 indicating the transmission is slipping. Does anyone know how I can repair the trans without replacing the transmission? Any help would be great. Thanks

[2001NBMZ28]

Saw your other post, I'd PM the guy too since it's from last year. In the meantime I found this for the 5.7: www.ls2.com/boggs/a4/DTC%20P1870%205.8.htm

[quaijai]

2001NBMZ28,
Thank you for your reply. I will look at the site and see if I can follow instructions on how to check trans.

[SWEETZ]

A TFP Valve Position Switch malfunction could set DTC P1870.
The following mechanical conditions could set DTC P1870:
A mechanical failure of the shift solenoid valves
A mechanical failure of the TCC Solenoid Valve
A mechanical failure of the TCC PWM Solenoid Valve
Internal transmission failures may set a DTC P1870.
An engine, misfire may erroneously set a DTC P1870.
Ensure that the final drive ratio matches the PCM's calibration.
A PRNDL DTC may falsely set DTC P1870.