Time for some new air conditioner guys Check to make sure that the compressor is running
Check fuses and switch
Check that temperature control is working and set to cold position
The cluster is another name for the gauge assembly.
You have a ground from the oil sender unit to the gauge. This is how you check a gauge. ground out the wire at the sender and it pegs out the gauge.
I have found though my experiences that 99% of the time the fuel gauge sending unit in the tank has failed.
Bad sending unit in tank.
The plug or sensor above the oil filter on a 1996 Cherokee is the oil pressure sending unit. This sensor controls the oil pressure gauge.
One reason is engine overheating - check your temp gauge and coolant as a first step.
A 1990 Jeep Cherokee malfunctioning fuel gauge can be caused by a broken ground wire. The gauge will not function if the fuel float in the fuel tank is broken.
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You will add the R-134a thru your low side port. You will need a gauge to check the PSI level when filling. (You do not need the Manifold gauge set). There are a lot of all in one products you can purchase that have the R-134a and oil included in them. Some will even come with a reusable gauge.
there is a short somewhere in dash or heater, you need to fix that to stop fuses blowing
The engine has to power the air conditioner pump, so less revs are made resulting in less revs for the alternator, resulting in less volts so your gauge drops a little
If your oil pressure gauge is high you have to much oil in your engine. Overfilling your engine can result in you blowing out your gaskets.
The fuel gauge in a 2001 Cherokee could be having different readings due to a bad fuel sensor. The sensor is mounted inside of the fuel tank.
you have a dead short in the wireing.
Seldom exceed 100 USD
10-2 wire refers to 10 gauge, 2 conductor wire. Youshould use wire that is 10 gauge or larger (8 gauge, 6 gauge, 4 gauge, 2 gauge). The larger the wire, the more it will cost. most people install using the smallest size permitted, which in this case is 10 gauge. The are specifying the wire size to ensure that you do not connect the air conditioner to electric power using wire that is two small. If you are having problems with this type of question, you should consult an licensed electrician for help in connecting your air conditioner.
Connect a freon gauge and tank to the low side ac port. Start the engine and turn ac on high. Open the valve and let the freon flow until the system shows full.