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aeromotive fuel pump holding pressure

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Old 08-23-2011, 06:08 PM
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Default aeromotive fuel pump holding pressure

I have a mpi 454 with mi procharger it has the areomotive fuel system on it . When you key it the pump will biuld pressure but as soon as the pump stops the pressure drops unless the motor is running . Is this normal or am I getting air in there ?
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Old 08-23-2011, 07:55 PM
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my holley does the same thing..
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Old 08-23-2011, 07:58 PM
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Are AERO pump does the same thing.
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Old 08-23-2011, 08:33 PM
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Thanks for the feed back
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Old 08-24-2011, 04:41 PM
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Quote:
Originally Posted by h2xwithboost View Post
Thanks for the feed back
I have two Bosch "044s" that required a good inline check-valve to keep pressure.. It still dies off over the period of a day, but it beats having to wait for the pump to pressure up to the rail/regulator after it was just running.

At one time, I had an A1000 that did the same and was fixed with a check. Just make sure the check is rated for the required flow.. (been there, done that, also)
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Old 08-24-2011, 08:00 PM
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Yup, normal as can be if you don't have check valves.
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