Initial Flush
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.
- Turn the J 35944-A water supply valve (1) to the ON position and allow water to flow through the oil cooler and pipes for 10 seconds in order to remove any remaining transmission fluid. If water does not flow through the oil cooler and pipes, the cause of the blockage must be diagnosed and the plugged component must be repaired or replaced. Continue with the cooler flushing and flow check procedure once the blockage is corrected.
- Turn the J 35944-A water supply valve (1) to the OFF position and clip the discharge hose (5) onto a suitable container, preferably with a lid, to avoid splashback.
- Turn the J 35944-A water supply valve (1) to the ON position and depress the trigger (8) to mix cooler flushing solution into the water flow. Use the clip provided on the handle to hold the trigger (8) down. The discharge will foam vigorously when the solution is introduced into the water stream.
- Flush the oil cooler and pipes with water and solution for 2 minutes. During this flush, attach the shop air supply 825 kPa (120 psi) to the flushing system feed air valve (2) located on the J 35944-A for 3-5 seconds at the end of every 15-20 second interval to create a surging action.
- Release the trigger (8) and turn the J 35944-A water supply valve (1) to the OFF position.
IMPORTANT:
Flushing for approximately 2 minutes in each cooler line direction will result in a total of about 31-38 L (8-10 gallons) of waste fluid. This mixture of water and flushing fluid is to be captured in a suitable container, preferably with a lid.