FASS Duramax Flow Enhancer Install 01-12 Duramax Part 1

The FASS Duramax Flow Enhancer series designed for the 2001-2012 Chevrolet Duramax 2500 and 3500 is available at Orange County Diesel in Huntington Beach, California. If you have any questions about any other FASS product, or if you need expert assistance installing your FASS Platinum, feel free to call and speak to a FASS service professional at 714-848-2170.

This is Part 1 of a model-specific four-part series about how to install a FASS Duramax Flow Enhancer.

The 2001-2010 installation steps are very similar to the 2011-2012 Duramax. The steps specific for the 11-12 installation are in green, and the steps unique to the 01-10 installation are in blue.

Please find the links to Part 2, Part 3, and Part 4 here.

Step 1: Install electrical harness.

Crimp the ring terminals to the red and green wires of the WH-1006 Wire Harness. Attach red wire to the positive terminal of the battery and the green terminal to the negative terminal.

Secure relay and fuse in an upright position, as shown, to prevent moisture from entering. Di-electric grease may be applied to prevent corrosion.

Guide the single red wire from the relay to the engine bay fuse panel.

Guide the single red wire extension through the fire wall grommet to the fuse panel.

Using the fuse tap and flag terminal, connect the red lead to a terminal on the circuit board that is “hot” when the key is on. Route WH-1006 wire harness along frame rail to mounting location of pump.