Low pressure typically means that the engine is worn out and you should either put in an oil with higher viscosity numbers or you need a new engine. If you have a sensor that actually detects oil LEVEL, (truly rare) it could mean that the engine oil is low, but probabbly not.
Pneumatic pressure testing of pressure vessels is done to check the leakage for any leakage where as hydraulic pressure testing is done to check the vessel for its strength.
Check your fuel pressure first then go from there.
i think it is 40 psi but it can vary check the tire or the side of the door panel for it.
check oil and oil pressure if good sell it
There is no difference between check valve and NRV, both are same
Check your hydraulic clutch reservoir to make sure it is full, if it is, it may be bad and need to replace.
If the check engine light is on in a 1997 Cavalier, there can be many different things wrong besides the EGR Valve. There could be bad oxygen sensors, low oil pressure, or even low spark.
Unplug it from the accumulator and run a jumper wire between the two holes. If the compressor clutch remains engaged while the jumper wire is in place, the switch is functioning properly.
Check for leaks in the intake manifold or a poor fuel pressure situation.
The fuel pressure regulator is bad, one or more fuel injectors is leaking or the check valve in the fuel pump is faulty.
since check valve holds water in the line can a hand pump be installed between the check valve and water tank?
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