Noisy fuel pump prior to start up - Diesel Forum - TheDieselStop.com
6.4L Power Stroke Engine and Drivetrain Discussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.

 
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post #1 of 1 (permalink) Old 09-21-2019, 09:11 PM Thread Starter
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Noisy fuel pump prior to start up

When I first turn the key to power, the fuel pump is quite noisy. After running for even as little as 10 seconds and then restart, the pump goes back to its usual quiet high pitched whine. Is this an HPFP on its way out?

2008 super cab Long Box 4x4, XLT limited,SRW, H&S Mini Maxx Tuner, 2.5" ICON lift w/ Bilstein shocks, 35 x 12.50 ProComp extreme all-terrains, Custom Aluminum Bumper, 12k Winch, LED Flood lights F&R, LED light bar, ride-rite airbags & tork lift spring extensions, Cloudveil mudflaps, boat towing/camper hauling machine
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  Diesel Forum - TheDieselStop.com > 2008-2010 Ford Super Duties > 6.4L Power Stroke Engine and Drivetrain

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