Manifold gauge/gauges are used to check both the high and low side pressures of the refrigerant inside the a/c system...................
Manifold gauge/gauges are used to check both the high and low side pressures of the refrigerant inside the a/c system...................
It goes to the temp gauge which is usually screwed in the head between the manifold on the drivers side, or into the thermost housing on the intake manifold.
intake manifold
A boost gauge in an internal combustion engine has the role of a pressure gauge. The gauge indicates the manifold's air pressure or a turbocharger or supercharger's boost pressure.
either in the side of the cylender hear or into the intake manifold, depending on the vehicle
Yellow jacket
how to install the oil pressure gauge on a Chevy 350 small block
That would be the RPM gauge. On an aircraft with variable pitch prop it would be the manifold pressure gauge.
On a manifold gauge set, there are two gauges. The gauge encased in red measures pressure on the high pressure (discharge) side. That's the "high side gauge". The other will be incased in blue, and measures vacuum pressure on the low side.
The R134a professional manifold gauge or gauges uses three hoses that each connect to the low and high ports of an AC system. The remaining hose connects to the can refrigerant. Use the gauges to check for leaks and see how refrigerant is need to refill the freon.
The low side gauge more than likely says retard because you hooked the low side up on the high side port