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This procedure checks the transmission fluid level, as well as the condition of the fluid itself. Before checking the fluid level, perform the following: 1. Start the engine and park the vehicle on a level surface. Keep the engine running. 2. Apply the parking brake and place the shift lever in PARK (P). 3. Depress the brake pedal and move the shift lever through each gear range, pausing for about 3 seconds in each range. Then, move the shift lever back to PARK (P). 4. Allow the engine to idle 500-800 RPM for at least 1 minute. Slowly release the brake pedal. 5. Keep the engine running and observe the transmission fluid temperature (TFT) using the Driver Information Center (DIC) or a scan tool. 6. Using the TFT reading, determine and perform the appropriate check procedure. If the TFT reading is not within the required temperature ranges, allow the vehicle to cool, or operate COLD CHECK PROCEDURE 1. Start the engine and locate the transmission dipstick at the rear of the engine compartment, on the passenger's side of the vehicle. 2. Flip the handle up, and then pull out the dipstick and wipe the dipstick end with a clean rag or paper towel. 3. Install the dipstick by pushing it back in the dipstick tube all the way, wait three seconds and then pull it back out again. NOTE: Always use the proper automatic transmission fluid listed. Using IMPORTANT: Use the cold check procedure only as a reference to determine if the transmission has enough fluid to be IMPORTANT: Always check the fluid level at least twice. Consistent
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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