2014-2019 INSTALLATION GUIDE 1 GlowShift.com © GlowShift Gauges, LLC | All Rights Reserved CHEVY / GMC DURAMAX Boost Gauge Installation SECTION � PREPARING THE INSTALLATION • Check that you have all parts required for installation, and that the engine is cool. • Open the hood and locate the truck’s batteries. Using an 8mm Wrench, disconnect the negative terminal of each battery to ensure there is no power running through the truck during the installation. Note: When it comes time to wire and connect the gauges to their power source, you will be able to reconnect the negative terminals on the batteries. 1. Using a flat head screwdriver, remove the Air Intake Pipe to gain access to the Intake Manifold. Locate an open area in order to install the Boost Line. 2. Starting with a 1/8” drill bit, drill a pilot hole. Continue increasing the size of the pilot hole using various drill bits until you reach size R. 3. Tap the hole to 1/8-27 NPT. 4. Thoroughly clean the manifold to remove any metal shavings using a shop vacuum. Note: Failure to remove metal shavings can result in possible engine damage. 5. Wrap Teflon Tape around the 1/8-27 NPT male threads of the Boost Line Adapter. 6. Tighten the Boost Line Adapter into the Intake Manifold using an 11mm wrench. 7. Reinstall the air intake pipe. 8. Slide the Ferrule Fitting Cap and Ferrule onto the Boost Line. (Refer to diagram) 9. Insert the line into the Ferrule Fitting Adapter and tighten with a 3/8” wrench. Note: Do not overtighten the Ferrule Fitting. 10. Route the Boost Line to an opening on the Firewall on the driver’s side of the Engine Bay and use zip ties to secure. Make sure there is no contact with any direct heat source or moving parts of the truck. 2. 9. PROPER ORIENTATION
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