Duramax Diesels Forum Truck of the Week
Old 02-18-2018, 07:01 PM
77cruiser 77cruiser is offline
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Location: Frost Bite Falls
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Default Pressure for lift pump?

What's the max press. to run? It go to 10 with engine off & shows 8.5 - 9 running.
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Old 02-18-2018, 07:52 PM
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TheBac TheBac is offline
Why do I keep doing this?

Join Date: Apr 2008
Location: Mid Michigan
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Moved over to Lift Pump section.

On an LB7? That should be fine. You'll know its too much if the FPR starts loping the engine.
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Old 02-18-2018, 09:10 PM
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Burn Down Burn Down is online now
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12 psi running and it drops to 7-8 psi at wot on a 3150 pulse tune.
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