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On a Pontiac Vibe, the high and low pressure switches for the AC clutch are typically located on the AC system's refrigerant lines. The low pressure switch is usually found on the accumulator or the suction line, while the high pressure switch is located on the discharge line or near the compressor. It's important to consult the vehicle's service manual for precise locations and details, as they can vary slightly by model year.
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Where is low pressure cut out switch on ac 2000 Malibu?
There is no low pressure cutout switch on the 1997-2001 Chevrolet Malibu. This holds true for both L4 cyl and V6 cyl models of this regardless of two door or four door. There also is not a high pressure cutout switch, but there is a pressure switch on the high side line at the top of the condensor, on the aluminum line coming from the condensor to the A/C compressor. Most parts stores will find it listed as a high pressure switch, but it actually is a transducer switch that works off the high pressure side. The compressor clutch engage and disengage functions are controlled by the on-board computer. It sends a 5 volt reference signal to the pressure transducer switch and the switch modulates the return voltage back to the on-board computer. The on-board computer reads that voltage change and determines if the high side pressure is within a certain range. If it is below that range then the on-board computer grounds the A/C clutch relay in the relay/fuse box on the driver-side under the hood, which in turn puts 12 volts to the A/C clutch engaging the compressor. Once the high side pressure reaches a certain point and the voltage return from the pressure transducer switch to the on-board computer is above a certain range, then the on-board computer removes the ground from the A/C clutch relay, which removes the 12 volts to the A/C clutch and it disengages. This particular system of controlling the A/C clutch/compressor cycling is used on many of the vehicles GM has been building since 1994. The set up of the system varies from vehicle to vehicle, but almost all of them control the compressor from a switch used on the high side pressure line.
Where is the ac low pressure switch located on a 1993 Pontiac Grand AM?
On a 1993 Grand Am (and most other GM front drivers) there is no low pressure switch, instead it has a thermal expansion valve system with a "pressure transducer" located on the high pressure hose. The pressure transducer sends a square wave digital signal to the PCM, which can calculate high side pressure in PSI through a mathematical formula, which in turn sends a signal to the a/c compressor clutch relay to turn on if the pressure is within the set parameters. The a/c pressure transducer cannot be checked with a test light or such, you WILL short the computer if you try!!
Will you lose freon if you replace the ac high pressure switch?
You will definitely lose all of your Freon when you replace the high pressure switch. Once the high pressure switch is loosen the Freon will begin to access the system.
Where is the ac high pressure cutoff switch located at on a 1988 suzuki samurai?
it does not have a high pressure switch all it has is a evaporator temp sensor/switch.
What does a ac pressure switch do?
A pressure switch a valve that shuts off the unit when the pressure is to low or to high
Your air conditioning compressor on a 1996 Lincoln town car wont cut in but the clutch turns freely by hand?
check to see if you have enough low side freon pressure and/or if the low pressure switch is working. bypass switch by crossing the wires of the switch with a paperclip to apply trigger voltage to the coil on the compressor,also check to see if there is voltage going to the low pressure switch,if these measures don't work,disconnect the high pressure switch to see if that switch is stuck and shutting off power thru the relay.
How do you fix 95 Chevy Astro van pressure switch and clutch not getting power on ac?
The pressure switch will not allow the clutch on the compressor to engage if it has too low of a pressure, or too high of a pressure. The normal reason for the clutch to not engage is that the system is low on Freon, and that normally means you have a leak in the system that is costly to NOT repair. To Test: Unplug the switch and turn on the AC, probe each side of the switch with a Volt Meter or a test light for power, if you have power then that is not the problem. If you do not have power begin at the fuses and work outwards to find the problem (advanced). Switch replacement is simple, unplug the wires, unscrew the switch (there is a Schrader valve to stop leaks) and put a new switch on. If that does not solve the problem, you are low on Freon you need the system checked before you throw good money after bad in refilling the system constantly.
When recharging your 95 Buick century from emptyhow do you get the compressor to cycle because you can't find the low pressure switch to jump to make work?
First off let me say that I cannot advise doing this in the first place. That said: With a pressurized canister of refrigerant connected to the low side service port, you won't need to jump the pressure switch unless the switch is broken. Pressure in the canister will be high enough to close the pressure switch and allow the compressor clutch to engage.
I have re-charged the air condition and replaced the air door actuator in my 2002 Chevy S-10 2.2liter and my AC doesn't work why?
If the compressor is not kicking in, check the fuse, check the compressor clutch air gap, check the low pressure cut out switch, check the high pressure cut out switch.
What does a high pressure switch do?
a hi pressure switch will limit the pressure by stoping motion (turn off motor) (unload cyclinder) ect
What is differential pressure switch?
A pressure differential switch, is a switch that reacts to pressure difference of two points, usually your supply & return side. If the pressure between these points are high, it then "reacts" notifying of pressure problem on the system.
Is the ac high pressure switch Normally open or normally close?
The AC high-pressure switch is typically a normally closed (NC) switch. This means that under normal operating conditions, the switch remains closed, allowing current to flow. If the pressure becomes too high, the switch opens, cutting off power to the compressor to prevent damage.
