2000-2006 INSTALLATION GUIDE 3 GlowShift.com © GlowShift Gauges, LLC | All Rights Reserved GMC SIERRA CHEVY SILVERADO DURAMAX Pyrometer EGT Gauge Installation SECTION 2 Warning: Make sure the exhaust is cooled off during this process. 1. We are going to install the EGT probe in a pre-turbo location on the manifold to ensure the most accurate readings. Installing the EGT probe further downstream can display a lower temperature reading on the gauge. Optional: To install the EGT probe, we are going to use GlowShift’s Drill and Tap Kit. 2. Remove the passenger-side inner fender liner. 3. Locate the exhaust manifold on the passenger side of the engine bay. Mark the manifold using a Center Punch to prepare the drilling and tapping process. 4. Starting with a 1/8” Drill Bit, drill your pilot hole into the manifold and gradually step up in Drill Bit size until you reach the size R Drill Bit. Note: Clean the manifold with a Pen Magnet and Vacuum to ensure no shavings are present in the manifold. 5. Take the 1/8-27 NPT Tap and slowly tap the size R hole in the manifold using Cutting Oil. Again, clean the manifold with a Pen Magnet and Vacuum to remove all shavings. 6. Using a 14mm Wrench, slowly thread the ferrule fitting adapter into the 1/8-27 NPT hole you just tapped and tighten until snug. Note: Do not overtighten the ferrule fitting. We also recommend using anti-seize on all EGT probe threads. 7. Slide the EGT probe into the ferrule fitting adapter and tighten until snug using a 14mm Wrench. Note: Probe depth should be in the center of the manifold. 8. Route the EGT probe harness up to the location of the firewall where you will be passing through into the cab. Be sure not to pinch or crimp the line and keep it away from moving parts and any direct heat sources using Zip Ties. 9. Reinstall the passenger-side inner fender liner. 3. 4. 8.
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