brake sensor CHEVROLET DURAMAX 2006 Owners Manual

Primary Filter (A)
1. Apply the parking brake.
2. Unplug the water sensor wire connected to the fuel
filter (lowest wire) and unscrew the filter’s cap.
3. Remove the filter element. If there is any dirt on the
filter sealing surface, clean it off.4. Install the new filter element.
5. Reinstall and tighten the filter’s cap and reconnect
the water sensor wire to the filter.
6. Prime the fuel system.
7. Start your engine and let it idle for five minutes.
Secondary Filter (B)
1. Apply the parking brake.
2. Unscrew the filter element.
3. Remove the filter element. If there is any dirt on the
filter sealing surface, clean it off. Remove and reuse
the water drain valve located at the bottom of the
fuel filter.
4. Install and tighten the new filter element.
5. Prime the fuel system.
6. Start your vehicle and let it idle for five minutes.
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