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Fuel Pump

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11. Fuel delivery isn't just a concern at the engine side: after a whole lot of head-scratching about how the ECU could get so out of tune, I realized that the fuel pump might have gotten toasted, even though it sits a foot away from the nearest exhaust point. After Edelbrock sent me a new electric fuel pump, the truck was good to go again, and I found I needed a heat shield to protect the fuel pump.

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