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The proper fuel pressure of a 1995 Astro van should be between 55-61 psi. Checking the fuel pressure at home requires a fuel pressure gauge and knowledge of the location of the shader valve on the fuel rail.
No oil pressure - after checking with a manual gauge
The gauge should be electrical.
the "valve" stem fitting you're referring to is called a schraeder valve , and is for connecting a fuel pressure gauge to, as a means of checking your fuel pressure-typical fuel pressure should be about 35 psi.
A pressure gauge indicates actual pressure and a differential pressure gauge indicates the difference in pressure.
You can know when you have reached the right cooker pressure by checking the temperature gauge. The right temperature would also depend on what you are cooking.
Because Pressure gauge measures the the differenceof pressure so it is called pressure gauge not meter.
THE NORMAL GAUGE PRESSURE SHOULD STAY AROUND 12 TO 19 P.S.I
checking the tires testing fuel pump pressure testing fuel pressure regulator testing compression testing the coolant system testing engine oil pressure testing transmission pump pressure
Start with checking the fuses.
A compound gauge is a pressure gauge that displays both negative and positive gauge pressure measurements. Gauge pressure is a measurement of pressure relative to ambient pressure. For example, if ambient pressure was 14.7 PSI and you were to measure absolute vaccum using a compound gauge, the gauge would indicate -14.7 PSI.
To get oil pressure - you have to either tap in the existing pressure sending unit's oil port or get a sandwich adapter plate - that fits between the oil filter and the block. In any case - you will need an oil pressure sending unit and appropriate gauge to go with it.