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Old 05-26-2010, 02:51 PM
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fuel pressure question

on my truck, I have a fuel pressure guage inside the cab. when I am running down the road, it reads anywhere from 50-60 PSI. I have no mods done to the FP regulator. After shutting the truck down, the guage will drop(over time) to 0 PSI. Is this normal? or should it hold pressure till the next time I get in and drive it?
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Old 05-26-2010, 08:58 PM
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nope, thats normal. Key off the pump shuts off and it will lose pressure
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Old 05-27-2010, 04:46 PM
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thats what I thought. Then I dont have an issue. thats awesome!!
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Old 05-27-2010, 04:51 PM
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How important is a fuel pressure gauge? What will I be able to monitor from it?
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Old 05-27-2010, 04:58 PM
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I put it in to monitor when I had Fuel pump troubles. all it shows is what fuel pressure you have at the bowl.
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Old 06-25-2010, 07:41 PM
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Can you tell me how you put a fuel pressure gauge in your truck? Is there a kit you can buy somewhere for it?
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Old 06-26-2010, 12:27 PM
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IIRC you should be at about 65 PSI all the time Nick. It should be the most boring gauge in the truck because it should never move unless there is an issue.
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Old 06-26-2010, 02:16 PM
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Quote:
Originally Posted by Southpaw View Post
IIRC you should be at about 65 PSI all the time Nick. It should be the most boring gauge in the truck because it should never move unless there is an issue.
Not with a stock fuel pump. they will hold 50+ but will not keep it up at 60 when you floor it. pulling my 5er my stock pump makes the gauge dance all over. with my fass pump on the VO side it sticks rock solid at 70 and does not more from idle to WOT grossing 22k.

Most agree that 50+ is fine.
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Old 06-26-2010, 02:17 PM
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Originally Posted by 99BEIGEPOWERSTROKE View Post
Can you tell me how you put a fuel pressure gauge in your truck? Is there a kit you can buy somewhere for it?
Fuel Press

then hook up whatever gauge you want to use.
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Old 06-26-2010, 02:20 PM
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If I had a small leak from the fuel bowl lid would the fuel pressure be low?
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