Fill with E85 and Bench Test
17:16
25:59
33.9K views
At 17:16 in
Ready For More Power! Boosted 5.3L Yukon XL DW400 Fuel Pump Install (Uncle Rob Ready To Turn Up!)
What happens here
After all connections are made and the fuel tank is secured, pour E85 fuel into the new tank. Ensure all lines are purged of air, and then start the vehicle. Listen for the fuel pump priming and check for any fuel leaks around the new fittings and connections. If no leaks are present, the fuel system is successfully installed and ready for further performance tuning and dyno testing. The presenter explicitly uses Ignite Red racing ethanol (E90/114 octane) for initial testing, emphasizing its higher quality compared to pump E85.
Goal: Confirm the new fuel system operates correctly without leaks.
Tools and materials
- Vehicle with new fuel system GMC — The completed vehicle ready for testing
- E85 Fuel — Fueling the new system for initial operation
What they say
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What they say
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