Subject: | Diagnostic Information for Transmission Binding and Shuddering |
Models: | 1999-2000 Chevrolet and GMC L Van Models |
1998-2000 Chevrolet and GMC S/T Models |
1998-2000 Oldsmobile Bravada |
With NVG 136 and NVG 236/246 Automatic Transfer Case (RPOs NP4 and NP8) |
The following information should be used when diagnosing a binding or shuddering transmission condition. To prevent unnecessary warranty expenses, the following should be observed.
Before any repairs are made to correct this condition, verify the front propeller shaft speed sensor (6) and the rear propeller shaft speed sensor (3) connectors are correctly installed. Refer to the tables below to compare wire colors. If the connectors are found to be installed incorrectly, swap the connectors and verify wiring harness routing.
Pin | Wire Color | Circuit No. |
---|---|---|
A | YEL | 400 |
B | PPL | 401 |
Pin | Wire Color | Circuit No. |
---|---|---|
A | LT BLU | 2221 |
B | DK GRN | 2222 |