Question about 2000 Chevrolet Silverado

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Fuel Pressure I would like to know what fuel pressure is correct for a Vortec 5.7 engine. Thanks

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60 to 65 psi. if is lower replca the fuel pump.

Posted on Apr 20, 2009

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My 2004 gmc yukon xl will run after 2 times cranking


Low fuel pressure ? What engine ? 4.3 vortec ? Center port fuel injection ? . These are real picky if it does have proper fuel pressure , won't start . These are know for various problems , leaking fuel pressure regulators located under the intake manifold . That is if your yukon has this system ?

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What is the correct fuel pressure


you don`t say what year make model and engine your after. most pressures are around 35lbs unless its a high pressure system like a GM vortec which would be 56lbs. this on gas engines

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While idleing engine quit running and won't start unless I manually feed it gas, gas is getting to the motor at back end but appearnetly not to the enjectors 1993 v6 vortec motot any suggestions


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1997 astro 4.3 vortec v6 fuel pressure problem. The fuel pump works for about 2-3 seconds when i turn on the key and it works when i crank the engine but i do not have anything close to 50 lbs of pressure...


Hello frankdoiron: My name is Roger and I will help you. If the fuel pressure is not 60-66 psi. the engine will not run right or will no start. At 55 psi. the engine will not start. Unless you have a injector that is stuck open I would look at the fuel pump as the problem. I would also change the fuel filter the same time you replaced the fuel pump. The warranty on the pump would be void if you do not replace it at the same time.
Please rate the answer you received. This is how we know your answer helped. Should you need further help please just ask. Thank You for using Fix Ya. Roger

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1999 chevy blazer wont start


THE FUEL PUMP IS BAD.

if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.

and i doubt that you are seeing enough fuel pressure to run a vortec engine.

low fuel pressure equals a non running vortec

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Wher is the fuel pump relay on a 1992 chevrolet blazer


in the fuel tank , MIninum fuel pressure for the vehicle if it has a vortec engine is 60 PSI the vehicle will not run on less than 60PSI
If you have a non vortec engine the fuel pressure is around 9 PSI
see www.aceautomotive1.com and view the blog and FAQ for more information

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