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 low-pressure port on your 2006 Chevy Trailblazer is located on the larger diameter aluminum line, typically near the firewall on the passenger side of the engine bay. It is usually covered with a plastic cap, which you can remove to access the port for adding refrigerant or checking pressure. Be sure to identify it correctly to avoid confusion with the high-pressure port, which is smaller and on a different line.
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.