Back Flush Procedure

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.

Connect the J 45096 adapters (1) to the vehicle's transmission oil cooler supply and return lines at the transmission. It may require the use of J 35944-200 cooler flushing adapter.

Fig 1: Connecting J 45096 Adapters To Oil Cooler Supply And Return Lines
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Fig 2: Identifying Black Supply Hose And Clear Waste Hose

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Connect the black supply hose (1) to the return line, rear connector of the transmission, and the clear waste hose (2) to the feed line, front connector of the transmission, to the vehicle cooler lines. This is the reverse flow - backflush direction.

Fig 3: Setting Main Function Switch To FLUSH Position

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Turn the main function switch to the FLUSH position. Allow the machine to operate for 30 seconds.

Fig 4: Setting Main Function Switch To IDLE Position

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Turn the main function switch to the IDLE position and allow the supply vessel pressure to dissipate.