MALFUNCTIONS Which May Cause a Blinking PRNDL
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Failure to detect turbine speed pull-down during a shift may occur under the following conditions:
- A clutch is failed and the transmission cannot attain the requested range.
- Invalid gear ratio
- The park/neutral position (PNP) switch or selector linkage is out of adjustment
- A/B solenoid failure
- Turbine or output speed sensor failure
- Lack of pressure at startup