Depends on ambient temperature - need a chart
The serpentine should route the same as with the AC except fro the AC compressor. The belt will go straight past the compressor, so you will need a shorter belt to make the bypass work.
the middle left on the motor from the front of the car
Check the pressure switch to the AC. migh be loss or refrigerant in system. Safety pressure switch will shut compressor down when pressure is below specs, it saves your compressor. Have a/c checked...........Mike
The 1999 Ford Ranger low pressure air conditioning valve can be found on the air conditioning compressor. The low pressure valve will be labeled as the low pressure port.
To replace the AC compressor in a 1999 Grand Prix you must first remove the AC belt. Then disconnect the negative battery cable before removing the compressor bolts and connectors and removing compressor.
my ac dont work
They may be marked "S" and "D" for suction (low side) and discharge (high side). A simpler way would be to look at the lines going into and out of the AC.... the smaller line will be the high pressure line, while the larger line will be the low pressure line. The low pressure line will connect at the compressor inlet, and the high pressure line will connect at the compressor outlet.
wiring digrams
changing ac compressor only, how much oil do i add 2.7 Toyota tacoma 1999.... 6 ounces
It's on top of the compressor, dead center of the engine compartment. Black cap,
follow the refridgerant lines from the compressor.
120 65psi