Fuel pressure under load?
06-01-2009 | 01:57 PM
#1
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Joined: May 2006
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From: Chicago Suburbs, IL
Fuel pressure under load?
I get 20 psi at idle, about 26 no load at 2500 rpm, and 20-21 at full throttle under load in gear. Does this sound right? When I pinch my return hose the pressure goes way up instantly, so I think the lift pump is healthy. Thanks
06-01-2009 | 06:35 PM
#2
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Joined: Dec 2003
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From: Montana
It's ok to dip below 25 psi for a short time under load such as when accelerating but for the most part it should stay above 25.
Make sure all your filters are clean and no lines are kinked.
Sometimes the lift pump will pass the pinch pressure test but doesn't meet the volume specs.
Make sure all your filters are clean and no lines are kinked.
Sometimes the lift pump will pass the pinch pressure test but doesn't meet the volume specs.
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