Mixer ------> EQ -------> Limiter -------> X'Over ------> Amps ------> Speakers
Yes, in order for the compressor to take on the new coolant and oil charge the compressor ideally should be running. It is posiible to begin charging the system with freon prior to compressor initiation, however to get an accurate reading of the pressure in the system the compressor should be cycling with differential valve operating properly. If it is clogged or the compressor is not cycling then then low side reading will give an elevated pressure while charging the system. Does that make sense?
An AC compressor is part of an air conditioner which may be used in a car's AC system. The compressor is used to change the pressure between the AC's compartments in order to help condense the refrigerant gas back into a liquid.
You don't need to engage the compressor clutch to recharge the system. In fact, you shouldn't engage it without refrigerant and oil in it, because the refrigerant carries the compressor oil in order to lubricate the compressor. But, to answer your question, you disconnect the low pressure switch, and run a jumper wire between the two female ends of the connector.
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When A compressor locks up on a car 99% of the time it is due to the compressor becoming worn out. When a compressor starts to wear small fragments of metal and rubber are pumped through the system. These fragments eventually make their way back into the compressor and jam it up destroying the compressor. This contaminates the entire system usually and will require a qualified, licensed technician to repair correctly. The system will have to be evacuated and all refrigerant recovered. The compressor, accumulator, and orifice will all have to be replaced in order to have a warranty. The entire system will have to be flushed. Next reassemble the system. Then a vacuum must be applied to remove any and all moisture in the system any moisture in the system will freeze and cause poor performance. Then finally the system must be recharged with the correct refrigerant and the exact capacity in weight, too much or too little will again cause poor performance even if its only one or two ounces with some systems.
An A/C compressor by-pass pulley can be installed in place of the A/C compressor. You might still be able to order one from the Jeep dealership, or NAPA can order one. Naturally. you can also search on-line for the part.
Some possibilities: (1) The internal cabin temperature sensor may be bad. (2) The relay that controls the A/C compressor is bad. (3) The A/C refrigerant needs re-charging (if there is not enough in the system the compressor will not turn on, in order to prevent itself from burning out).
In the game of basketball, a crossover is a type of dribble where the ball handler bounces the ball in front of him/her from one hand to the other, in order to change the direction of their dribble quickly. For example, if a ball handler is dribbling to the left with his left hand and wants to quickly go to the right, he performs a crossover to the right.
regulator valve
You need to check that there is actually gas in the a/c system, because if the system is empty of gas , the clutch will not engage in order to protect the compressor.
I'M NOT A MECHANIC but I know on my 1995 XLT when I select defrost the air conditioning system compressor will cut in and out in order to de-humidify the air. I was just wondering if your A/C compressor pulley turns or if something is seized up ?
There are many reasons why an AC system can end up providing insufficient cooling, and a proper diagnosis is required in order to narrow it down. It could be low refrigerant (typically due to a leak in the system), excessive refrigerant, blockage in the system, problems with the compressor or compressor clutch, damaged condenser fins which do not allow sufficient airflow to go through for the heat exchange, a bad high or low pressure switch, etc. I would suggest that you go to a qualified shop and have them run a system performance test in order to diagnose the problem.