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Re: do I need to test duramax return fuel volume?
Posted to HD/Fleet Forum on 3/2/2010 1 Reply

Thanks, that is exactly what is happening. Was thinking the scan data verified a good pump & I wouldn't have to test return fuel. Thanks for reinforcing my opinion.

Do you know what normal range for FRP percent vs actual pressure should be? Also, how far off... Login to read more.

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