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Fig. 19: Setting Main Function Switch To FLOW Position 1. Turn the main function switch to the FLOW position and allow the oil to flow for 15 seconds. Observe and note the flow rate. This is the TESTED flow rate. 2. Compare the TESTED flow rate to the MINIMUM flow rate information previously recorded. If the TESTED flow rate is equal to or greater than the MINIMUM flow rate IMPORTANT: If the flow rate is less than 0.5 gpm, the LCD displays an error message. Refer to the Troubleshooting section of the
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Procedure. If the TESTED flow rate is less than the MINIMUM flow rate previously recorded, 3. If the TESTED flow rate is less than the MINIMUM flow rate after the second test, perform the Code Recording Procedure. 1. Replace the transmission oil cooler. 2. Connect the supply and waste hoses to the cooler lines in the normal flow direction. Perform the Flow Test. 3. Perform the Code Recording Procedure. CODE RECORDING PROCEDURE Fig. 20: Setting Main Function Switch To CODE Position
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
1. Turn the main function switch to the CODE position. 2. Record TESTED flow rate, temperature, cycle and seven-character flow code information on the repair order. CLEAN-UP IMPORTANT: If power is interrupted prior to the recording of the 7- The flow test must run for a minimum of 8-10 seconds
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 21: View Of Main Power Switch & Main Function Switch 1. Turn the main function switch to the IDLE position and allow the supply vessel pressure to dissipate. 2. Turn the main power switch to the OFF position. IMPORTANT: A small amount of water may drain from the bottom of the
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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