Stock Lift Pump Pressure, What's Good??
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Stock Lift Pump Pressure, What's Good??
Ok, got my Fuel Pressure Gauge installed (from Geno's Garage)! Took a short run on a secondary road after checking for leaks.
I have 15 PSI at idle and light load, 10 PSI running normal down the road (up to 50/55mph on this short trip), and around 5+ flogging it. The truck has 48K miles and I'm connected to the test port on the InjectionPump. Also have 17k miles on the fuel filter. ( I don't the previous owner did, I'm ready to change it but wanted to wait and see what the difference would be on the fuel pressure, before and after).
My question is ;
What is a good reading for a stock pump, and what is an acceptable reading for a stock pump???? Idle; running say 2000 rpm down the highway; and flogging it????
Thanks, this forums been a great help!
I have 15 PSI at idle and light load, 10 PSI running normal down the road (up to 50/55mph on this short trip), and around 5+ flogging it. The truck has 48K miles and I'm connected to the test port on the InjectionPump. Also have 17k miles on the fuel filter. ( I don't the previous owner did, I'm ready to change it but wanted to wait and see what the difference would be on the fuel pressure, before and after).
My question is ;
What is a good reading for a stock pump, and what is an acceptable reading for a stock pump???? Idle; running say 2000 rpm down the highway; and flogging it????
Thanks, this forums been a great help!
Registered User
Joined: Oct 2005
Posts: 130
Likes: 0
From: Little Rock, ARK
I have heard that you really don't want to get below 8 the other pressures sound normal. I would change the fuel filter and see what the readings are.
I have the vulcan bigline relocate kit and mine are 14-15 at ldle, 12 to 13 at 70 mph and 11 at wot.
I have the vulcan bigline relocate kit and mine are 14-15 at ldle, 12 to 13 at 70 mph and 11 at wot.
Registered User
Joined: May 2004
Posts: 1,137
Likes: 1
From: upper michigan
Fill out your sig so we know what kind of truck you have.
My 2002 with 77 grand has about the same readings. Mine has been that way since i installed guages at about 25 grand. In 52 thousand my pressure has dropped about 1 psi across the entire range. I am not sure if it is the pump or the guage. I will compare guages just to be sure.I am not going to do a think untill the wot pressure gets down to 4 or less.
My 2002 with 77 grand has about the same readings. Mine has been that way since i installed guages at about 25 grand. In 52 thousand my pressure has dropped about 1 psi across the entire range. I am not sure if it is the pump or the guage. I will compare guages just to be sure.I am not going to do a think untill the wot pressure gets down to 4 or less.
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Joined: Nov 2002
Posts: 257
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From: Newman Lake, WA (But my home is deep in the heart of Texas!)
Originally Posted by billsuerv
Ok, got my Fuel Pressure Gauge installed (from Geno's Garage)! Took a short run on a secondary road after checking for leaks.
I have 15 PSI at idle and light load, 10 PSI running normal down the road (up to 50/55mph on this short trip), and around 5+ flogging it. The truck has 48K miles and I'm connected to the test port on the InjectionPump. Also have 17k miles on the fuel filter. ( I don't the previous owner did, I'm ready to change it but wanted to wait and see what the difference would be on the fuel pressure, before and after).
My question is ;
What is a good reading for a stock pump, and what is an acceptable reading for a stock pump???? Idle; running say 2000 rpm down the highway; and flogging it????
Thanks, this forums been a great help!
I have 15 PSI at idle and light load, 10 PSI running normal down the road (up to 50/55mph on this short trip), and around 5+ flogging it. The truck has 48K miles and I'm connected to the test port on the InjectionPump. Also have 17k miles on the fuel filter. ( I don't the previous owner did, I'm ready to change it but wanted to wait and see what the difference would be on the fuel pressure, before and after).
My question is ;
What is a good reading for a stock pump, and what is an acceptable reading for a stock pump???? Idle; running say 2000 rpm down the highway; and flogging it????
Thanks, this forums been a great help!
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