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Fig. 56: View Of PNP Switch Electrical Connector 1. Apply the park brake. 2. Shift the transmission into neutral. 3. If equipped with 4-wheel drive (4WD), remove the front propeller shaft. Refer to Front Propeller Shaft Replacement . 4. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle . 5. Disconnect the park/neutral position (PNP) switch electrical connector (2).
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 57: View Of Park/Neutral Back Up Switch 6. Remove the manual shaft lever nut. 7. Remove the transmission control lever from the manual shaft. 8. Remove the PNP switch bolts. 9. Remove the PNP switch from the manual shaft. If the PNP switch did not slide off the manual shaft, file the outer edge of the manual shaft in order to remove any burrs.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Installation Procedure Fig. 58: View Of Park/Neutral Back Up Switch 1. Install the PNP switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats. 2. Slide the PNP switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
3. Install the PNP switch bolts finger tight. Fig. 59: Positioning J 41364-A Onto PNP Switch 4. Install J 41364-A onto the PNP switch. See Special Tools. Ensure that the two slots on the switch where the manual shaft is inserted are lined up with the lower two tabs on the tool. IMPORTANT: If a NEW PNP switch is being installed, the switch will come with a positive assurance bracket. The positive assurance NOTE: Refer to Fastener Notice .
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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