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probably a 7/16 by 20.

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16y ago
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Q: What thread is a schrader fuel test port?
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Where is the fuel pressure test port on a 1995 Chevy Beretta?

There is no schrader valve, you need to source an adapter to place between where the fuel line attaches to the intake manifold.


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there is none. you have to splice into the fuel line. the car does not have a schrader valve like many domestics.


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You should be able to pressure test the fuel system with a fuel pressure gauge though the service port (Schrader valve). Give us the year and engine info for more details.


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The Villager does not have a test port. You need to tee into the line at the fuel filter.


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The 2002 Ztec engine does not have a schrader valve. You have to buy a t adapter that fits between the fuel supply and the pressure regulator. The system is a non-return system, that is why the other end of the fuel rail is capped.


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There is no test port.


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The fuel test port on a 1997 Suburban is on the engine under the hood. It is located near the fuel lines.


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The 1997 Nissan Pathfinder does not have a schrader valve. If you want to test the fuel pressure system (fuel pump, lines, pressure regulator) you have to insert a 'T' in the fuel line under the hood and connect a fuel pressure gauge to the 'T'.


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Do you have power at the fuel pump relay test connection. do you have fuel at the schrader valve on the fuel rail.