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Re: 7.3L diesel HPOP testing
Posted to HD/Fleet Forum on 5/30/2019 5 Replies

Charles, I replaced the fuel pressure regulator. Then I took another test drive with 2 fuel pressure gauges hooked up.

At idle I had 60 psi, under 100% load the pressure drops to 30 psi. As soon as I leave off the throttle, the pressure pops straight up to 6... Login to read more.

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