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Tire pressure is correct. During the road test: Perform the test only when traffic conditions permit. Operate the vehicle in a controlled, safe manner. Observe all traffic regulations. View the scan tool data while conducting this test. Take along qualified help in order to operate the vehicle safely. Observe any unusual sounds or smells. After the road test, check the following: Inspect for proper transmission fluid level. Refer to Transmission Fluid Check. Inspect for any diagnostic trouble codes (DTCs) that may have set during the testing. Refer Monitor the scan tool data for any abnormal readings or data. Inspect for fluid leaks. Refer to Fluid Leak Diagnosis. ELECTRICAL FUNCTION CHECK Perform this procedure first in order to ensure the electronic transmission components are 1. Connect the scan tool. 2. Ensure the gear selector is in PARK and set the parking brake. 3. Start the engine. 4. Verify that the following scan tool data can be obtained and is functioning properly. Refer to Control Module References for typical data values. Data that is questionable may Engine Speed Transmission ISS Transmission OSS
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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