vent door
in my mouth
The air conditioning service port for a 2006 Chevy Express 3500 is located on the refrigerant lines near the engine. The low-pressure service port is typically found on the larger diameter line, while the high-pressure port is on the smaller line. To access these ports, you may need to lift the hood and look near the front of the engine bay, close to the compressor. Always consult your vehicle's service manual for specific details and safety precautions.
the promblem is the oil pump.
The LOW pressure fitting is SMALLER than the HIGH pressure fitting.
1999 Chevy table oil pressure gauge low and check gauges flickering
look for the port with the black cap on it, it's the low pressure port.
The low pressure valve on a 93 Chevy Corsica is under the hood. It is on the larger hose coming off the AC air compressor.
more than likely a bad oil sending unit but you need to get it checked out to make sure.
under the carpet.
The low pressure sensor on a 2006 Hummer H2 is located on the top rear of the engine. It is behind the intake manifold.
One of the causes for low oil pressure in a Chevy Tahoe could be a clogged or dirty oil filter. Changing the filter may get rid of the problem.