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Old 10-30-2011, 06:44 PM
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Fuel pressure

I just got my gauge hooked up today. It is a Glowshift 100PSI gauge. At idle it sits around 50 PSI and around town driving thats pretty well where it stays. When i put the hammer down it just drops to 0. Whats my problem here. I have seen where it should not drop below 45 PSI. All my mods are in my sig. One of my injectors is bad i do believe, When it gets a little worse iam going to to 175's and an airdog
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Old 10-30-2011, 08:13 PM
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when is the last time your fuel filters were changed? At 0psi, I would assume the truck would cut out and sound horrid. Are you positive the guage is calibrated correctly?
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Old 10-30-2011, 08:31 PM
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I believe it. Does your truck have the upgraded fuel spring? I'd change all the filters, and make sure the regulator has the upgraded spring installed. If pressure is still low, replace the pump. I've seen many trucks drop to virtually nothing under load and run reasonably well, but the injectors aren't long for this earth at that rate.
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Old 10-31-2011, 04:17 AM
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Yea I have the spring I suppose I will check my filters. It very well could be that my gauge is not hooked up right? Those glow shift gauges have so many wires as opposed to auto meter or isspro
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