Fuel and Engines
Fuel and Fuel Intake

How many pounds of pressure is the fuel system under?


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2015-07-15 19:15:20
2015-07-15 19:15:20

Depends on the type of car, usually between about 5 to 85 psi and really depending on the type of car. Racing cars or HO cars have higher psi requirements.


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its just under 0.5 pounds.

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The car has a high pressure electronic fuel injection system. It is HIGHLY unlikely that the fuel would be heated enough to boil when it is under 42 pounds of pressure.

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For your 1994 CHEVROLET TRUCK ASTRO VAN 2WD: FUEL SYSTEM PRESSURE 9-13 PSI(POUNDS PER SQUARE INCH) You can find this stuff free at under specifications.

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The fuel sytem is constantly under pressure. When you remove the fuel cap you are in effect depressurizing the system.

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the fuel pressure should be 65 pounds of pressure

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