2011 F250 Ac Pressure Switch LocationRemember this low pressure switch is there for a reason. So no the pressure does not half to evacuated when changing the pressure swith cause the sharder valve will keep the system contained Was this answer helpful? Yes No Score 1 Add a comment. It has different roles: It monitors the loop's high pressure; It detects a too low . Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the . There are two different functions depending on the pressure - ramping up fan speed, and cutting off the A/C compressor. Cheers! 1997 F250 SC 4x4, E4OD, 4. This range does not include taxes and fees, and does not factor in your specific model year or unique location. Company Description: GMINA LUTOMIERSK is located in Lutomiersk, łódzkie, Poland and is part of the Executive, Legislative, and Other General Government Support Industry. We currently carry 5 A/C High Pressure Side Switch products to choose from for your 2008 Ford F-250 Super Duty, and our inventory prices range from as little as $30. I have a 2011 F250 Lariat dual temp control and all that jazz, leather ac/heat seats. You have what is called a shrader valve. Whatever this sensor is, you can locate it in the engine bay area. The 2012 Ford F-250 has 3 different fuse boxes: Upfitter controls (if equipped) Left low beam headlamp. The average cost for a Ford F-250 air conditioning refrigerant pressure switch replacement is between $94 and $109. Direct OEM replacement for proper fit Recommended by Ford Motor Company. Step 2: Remove the switch electrical connector. 10A: 18: Keypad illumination, Passive anti-theft indicator Select shift switch , Reverse park aid module, Trailer brake control module. This will bypass the low pressure sensor and allow the AC clutch to engage and begin to cycle again. On top of low prices, Advance Auto Parts offers 4 different trusted brands of A/C High Pressure Side Switch products for the 2008 Ford F-250 Super Duty. Designed specifically for your vehicle, Motorcraft products meet stringent Direct OEM replacement for proper fit Recommended by Ford Motor Company. 99 F250 5. What Does an AC Compressor Do?. 4 where is the ac relay switch located doesn't show in the owners manual 99 F250 5. Closed Throttle Position Switch. He's thinking low or high pressure switch is bad. Select year, make, model above to verify this part fits your vehicle. With Rectangle Connector Shape. Do NOT jump the low pressure switch to operate the compressor non-stop so you can add refrigerant. I know that the relief valves can blow if not enough air flow over the condenser. Air Conditioning Fill - Safely add refrigerant to your A/C system 5. I used a jumper wire from the battery and the clutch engaged and the compressor worked and the a/c was very cold and not low on freon (using my gauges to check). Direct OEM replacement for proper fit Recommended by Ford Motor Company. Step 3: Remove the switch. 2013 f-150a/c pressure switch location. 2011 eco f150 ac pressure switch location. Low pressure switch has power in and out And the high pressure switch has power on 3 wires but. Remove the plastic clip that attaches the two wires to the sensor and use a short piece of wire to connect the two terminals in side the plug by putting the ends into the cap. At a lost of refrigerant the switch will open. Motorcraft is the way to restore the performance of your vehicle. Only 1 left, In Stock, Add to cart to see delivery date. Ac low pressure sensor p0532. Let’s get started on DIY: 1. Replace Cap - Replace the low pressure port cap 6. FORD AC AIR CONDITIONER DOES NOT WORK BECAUSE OF BAD AC PRESSURE SWITCH. 2011-16 Ford f series ac fix bad evaporator temperature sensor instead of pulling out the dash which is about 10 hours book time to actually replace the sen. Ford F-250 2011, HVAC System Switch by Four Seasons®. FORD AC AIR CONDITIONER DOES NOT WORK BECAUSE OF. Remove the plastic clip that attaches the two wires to the sensor and use a short piece of wire to connect the two terminals in side the plug by putting the ends into the cap. after about 30 or 40 minutes the car starts right up and runs perfect. The air conditioning system in your Ford F-250 Super Duty is under so much pressure that it comes with a built-in fail-safe technology that prevents catastrophe. I'm diagnosing an a/c compressor problem and have read alot on here about it. The compressor is turned off immediately when the A/C compressor pressure cutoff switch detects an acute increase in pressure. Low pressure switch has power in and out And the high pressure switch has power on 3 wires but. The pressure switch is located on the high pressure side of the loop. 0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM, Full Force injectors, TurboMaster wastegate controller, Adrenaline HPOP, RiffRaff billet turbo wheel, stainless bellowed. Labor costs are estimated between $58 and $73 while parts are priced at $36. FORD AC AIR CONDITIONER DOES NOT WORK BECAUSE OF BAD AC PRESSURE SWITCH. A/C Refrigerant Pressure Sensor. Just want location of sensor - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience. WHAT AC PRESSURE SWITCH DOES. I mean you can empty it yourself but it will be a pain to fill properly. Ac low pressure sensor p0532. Some parts are on backorder and cannot be fulfilled, if time is of the essence please call to verify availability before ordering. Also it is normal for your compressor to not cycle continuously if. Jump the low pressure switch only to test the circuit Low AC pressure will prevent the relay from sending power to the AC compressor clutch. Build an alternating current generator using an open ended cardboard box, copper wire, a nail and strong magnets. Find The Sensor And Disconnect The Negative Battery Саblе. 3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6. Sounds like the switch is sensing a low pressure condition or the switch is bad. Don't have the equipment to check, no problem, here's a quicky vid on how to check for low refrigerant in your truck or car. Follow the larger (suction) line from the evaporator, to the . Ford Powerstroke Diesel Forum. 10A: 36: Fuel tank select switch. Leave the other two wires disconnected. Wrench. The AC pressure switch protects the AC system from pressure that's too high or low. The low pressure switch is easy to get to as it is high in the engine compartment. The 2012 Ford F-250 has 3 different fuse boxes: Upfitter controls (if equipped) Left low beam headlamp. We use cookies to give you the best possible experience on our website. Your AC pressure switches are located on both the high and low sides of the unit. ⚡ Updated car parts price list, best prices, fast shipping ☝ boodmo. Locate Port - How to access the low pressure port 4. Note: Typically, the A/C system does not need to be evacuated prior to removing the A/C pressure switch. If your issue is in that valve then yes you will lose pressure. Anybody know where the location of the high and low pressure switches are located , I see where the compressor cycle switch is. The low pressure side switch is located before the AC compressor, while the high pressure switch comes after the compressor. 2012 f250 ac low pressure switch location. A/C Switch Compatible with 2000-2007 Ford Taurus 2003-2010 Ford F-250 Super Duty 2003-2010 Ford F-350 Super Duty 2004-2010 Ford F-450 Super Duty 2004-2007 . How to replace the a/c pressure or a/c clutch cycle switch on 2011 f250. 7 Air Conditioning Issues. Insert a nail through the box, attach the magnets to it and wrap the box with 200 feet. 4 where is the ac relay switch located doesn't show in the owners manual 99 F250 5. Open the Hood - How to pop the hood and prop it open 3. voltage to low pressure , but not to clutch. Compressor clutch receives ground at left front corner of engine compartment 13. #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. This is because there is a schrader valve built into the switch mount. How do you bypass the ac pressure switch?. Step 3: Remove the switch. Screw the new switch in by hand, then tighten it until it's snug using a ratchet or wrench. Intermittent A/C problem (NO COOL AIR). The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. GMINA LUTOMIERSK has 1 employees at this location and generates $131,864 in sales (USD). Step 2: Reinstall the electrical connector. #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. The 2012 Ford F-250 has 3 different fuse boxes: Upfitter controls (if equipped) Left low beam headlamp. If you are trying to locate the air conditioner recharge port, here is the vide. “IF” you opened the system, lines disconnected, you''ll most likely have to pull a vacuum on it AFTER you replace the seals, and Dryer/Accumulator. Joined Feb 22, 2011 684 Posts #2 · Mar 15, 2015 The best way to do it is take it to a shop that does AC. Automotive Mechanic 25 years of experience The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. FORD AC AIR CONDITIONER DOES NOT WORK BECAUSE OF BAD AC PRESSURE SWITCH. With no power to a/c comp. PCM grounds AC compressor clutch relay control coil which closes relay contacts and sends power to compressor clutch coil. Connect the recovery machine's larger hose to the low-pressure port of the system and the smaller hose to the high-pressure port. #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. Just want location of sensor - Answered by a verified Ford Mechanic. Start with locating the sensor as in some cars it can be an AC high pressure switch function, and in some, a low one. Ac low pressure switch location. Joined Oct 3, 2011 3,712 Posts #2 · Apr 30, 2013 It is on the side of the Receiver/Drier (the black cylindrical canister in the engine compartment on rear passenger side). You will find the low pressure AC switch on the low . Do exactly the opposite of what you did before. 2001 F250 AC low pressure switch - 1999 Ford F250 Regular Cab. Once you are done finding the sensor, take. The low pressure side switch is located before the AC compressor, while the high pressure switch comes after the compressor. You will find the low pressure AC switch on the low pressure side (smaller pipe) and the other on the high pressure side (large pipe). Cant locate ac low pressure sensor. I then checked the high pressure switch on the compressor which engages the clutch. The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. 2011-16 Ford f series ac fix bad evaporator temperature sensor instead of pulling out the dash which is about 10 hours book time to actually replace the sen. The compressor in an AC unit is a type of pump, and it functions in a manner that’s similar to a human being’s heart, according to Tech Choice Parts. Loose the switch with a socket or wrench, then unscrew it. I have a 2011 F250 Lariat dual temp control and all that jazz, leather ac/heat seats. Joined Jan 2, 2011. Step 3: Reinstall the negative battery cable. On this vehicle you have a combined sensor, so this sensor tells the ECM the pressure and then the ECM determines if it is high or low. The low-pressure port is typically on the ~3/8" shiny aluminum line that runs between the firewall and the AC compressor. Ford F-250 2011, A/C Clutch Cycle Switch by Motorcraft®. 10 LS, Basically Stock, Relocated Block Heater Plug, External Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed. After repairs, make sure and do a good inspection. 4 where is the ac relay switch located doesn't show in the owners manual 99 F250 5. never recorded my vent temps, keep meaning too but always forget. Find useful information, the address and the phone number of the local business you are. forthehalibut Registered Joined May 2, 2009 1,340 Posts. May 1, 2020 - Budynek mieszkalny jednorodzinny do 100 m2 (gmina Lutomiersk, łódzkie) - BIAMS Architekt Łódź. At a lost of refrigerant the switch will open. Fastest delivery by: Wed Oct 19. I shot starter fluid in the intake and it started up and ran on the started fluid for 20 seconds then stalled out. all new ac system twice. The average cost for a Ford F-250 air conditioning refrigerant pressure switch replacement is between $94 and $109. The pressure switch screws onto the sharder valve. The high side switch is a dual pressure switch. 2003 F-250 XLT Crew Cab 7. Learn the pressure sensor location on the . When you’re in the market for an air conditioning unit (AC) you should be aware that all HVAC brands are not equal in quality and reliability. Dealer has quoted me nearly $2000 for the repair because they say the complete dash must come out to replace the evap temp sensor. On top of low prices, Advance Auto Parts offers 4 different trusted brands of A/ C High Pressure Side Switch products for the 2008 Ford F-250 Super Duty. it can be jumped no problem,don't run the compresser too long or damage will result. I believe this system is supposed to if the high side pressure is good then send +12v across the red/yel up to the low pressure switch to give that red/yel +12v then check at the dryer then send power to the compressor clutch and turn the system on. This will bypass the low pressure sensor and allow the AC clutch to engage and begin to cycle again. AC low pressure switch location. Backed by over 50 years of mobile A/C experience, fix it once and fix Contains gaskets, o-rings, or seals to properly replace the product Color coded for easy identification $32. Thoughts on the original poster's issue. You will find the low pressure AC switch on the low pressure side (smaller pipe). I am now starting to narrow things down to a few things. 10A: 18: Keypad illumination, Passive anti-theft indicator Select shift switch , Reverse park aid module, Trailer brake control module. Glenn has it right on the switch. Ford Escape AC wiring diagram. A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. 2011 f250 evap temp sensor. #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. However, instead of moving blood through a human b. To replace the AC pressure switch, you have to remove the refrigerant in the system. 10A: 36: Fuel tank select switch. I've had an issue with the a/c in my truck. Closed Throttle Position Switch. Could someone pleas post a picture of its location. It is on the side of the Receiver/Drier (the black cylindrical canister in the engine compartment on. 1999-2010 Ford F-250 Super Duty A/C Low Pressure Cut-Out Switch SMP PCS119. Products are engineered and tested to provide years of trouble free operation. AC BLOWS HOT FIXIf you have Ford and your ac is not working, in other words the ac a. In definition, the AC Pressure Switch is a safety switch located behind the air conditioning system. AC presure switch problem?. Start with locating the sensor as in some cars it can be an AC high pressure switch function, and in some, a low one. Backed by over 50 years of mobile A/C experience, fix it once and fix Contains gaskets, o-rings, or seals to properly replace the product Color coded for easy identification $32. The AC pressure switches are located on the AC pipes on both sides of the AC compressor. It is advised not to release the refrigerant into the open as it can contribute to the greenhouse effect. Testing and replacing the AC Clutch Cycling Switch on my second gen Cummins, went from blowing warm/ambient air to blowing cold! If your AC clutch isn't spin. Locate the high pressure reset switch which is located within the air outlet section at the condenser side of the system. If it is reading incorrectly it won't run the compressor the correct amount of time. How to Replace an AC Pressure Switch. Compressor Low Pressure Switch Location??. There are two different functions depending on the pressure - ramping up fan speed, and cutting off the A/C compressor. ac pressure are around 25/30psi on low side and 260psi on the high side. My low pressure/cycling switch pigtail is bad. Testing and replacing the AC Clutch Cycling Switch on my second gen Cummins, went from blowing warm/ambient air to blowing cold! If your AC clutch isn't spin. It is on the side of the Receiver/Drier (the black cylindrical canister in the engine compartment on rear passenger side). Ac low pressure sensor p0532. This issue turned out to be the evap temp sensor. Motorcraft® A/C Clutch Cycle Switch. Quote: Originally Posted by jr88210. Also possible the relief valve is just weak. Need help no voltage at low pressure switch and AC. Ford F-250 2011, HVAC Heater Core by Motorcraft®. How To Replace AC Low Pressure Switch: Detailed Guide You Need To Follow. This switch is usually located near the compressor, on . i am at a complete loss having replaced the entire system twice. I have a 2011 F250 with the same issue supposedly. SOURCE: AC low pressure switch, on 2002 ford F250, this is a switch that remains closed as long as there is enough refrigerant pressure to keep it closed. Posted by Anonymous on Jul 11, 2012. Changing out ac pressure switch. 2011 f250 evap temp sensor. Location of the recharge port for the AC on a Ford F350 6. Note: Typically, the A/C system does not need to be evacuated prior to removing the. The AC pressure sensor is bad making me think it has too much head pressure. The AC pressure switches are located on the AC pipes on both sides of the AC compressor. Search our catalogue to buy【 FORD FIGO AC Pressure Switch 】parts online you need. ac pressure are around 25/30psi on low side and 260psi on the high side. Joined Oct 3, 2011. AC NOT BLOWING COLDIn this video we will explain what the A/C pressure switch is for and how a bad faulty AC pressure switch ma. Whatever this sensor is, you can locate it in the engine bay area. There are a lot of things in an. Joined Jan 12, 2011 In Attached Ford AC parts diagram below , iggie the yellow . Note: Typically, the A/C system does not need to be evacuated prior to removing the A/C pressure switch. Common signs of failure include a bad compressor or lack . Q: Where is the AC pressure switch located?. If you jump the low pressure switch with the engine running, do it only for a few seconds. How to Add Refrigerant to a 2008. But again if someone could absolutely confirm this for me. Related repairs may also be needed. Quote: Originally Posted by jr88210. Location of the recharge port for the AC on a Ford F350 6. I believe you were miss informed but you don't half to drain your a/c fluid. Location of AC recharge port and compressor Ford 2011 F350. Most newer a/c systems have an evaporator temp sensor that reads the temp in. Clicking this will make more experts see the question and we will remind you when it gets answered. Just want location of sensor - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Have you any ideal what your pressures are, should be 28-30 psi on the low side and (IIRC)250 psi on the high side. Dealer has quoted me nearly $2000 for the repair because they say the complete dash must come out to replace the evap temp sensor. 1999-2010 Ford F-250 Super Duty A/C Low Pressure Cut-Out Switch SMP PCS119. The system has two pressure switches namely . #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. How to Replace an AC Clutch Cycling Switch. fan clutch is new radiator ic perfectly clean as well. I have a 2011 F250 with the same issue supposedly. Have them pull the r-134 out and when they get done you replace that switch in 10 seconds then have them refill it. #howto #easyway #fix #diy #shorts #viral #trending #newvideo Ford F150 A/C Relay And pressure Switch (Sensor) LocationFord F150 AC Relay, Fuse & Pressure Sw. Can I change ac pressure switch without draining refrigerant on 2012 Ford F-150 3. FORD AC AIR CONDITIONER DOES NOT WORK BECAUSE OF BAD AC. Step 2: Remove the switch electrical connector. Most newer a/c systems have an evaporator temp sensor that reads the temp in the evaporator. Location of the recharge port for the AC on a Ford F350 6. The AC pressure switches are located on the AC pipes on both sides of the AC compressor. AC BLOWS HOT FIXIf you have Ford and your ac is not working, . Ford F-250 2011, A/C. 4 where is the ac - Ford F-250 question Oct 30, 2012 • Cadillac Cars & Trucks. I tried to search before posting and there is nothing on this anywhere on the web or here that I can find. Automotive Mechanic 25 years of experience The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. You will find the low pressure AC switch on the low pressure side (smaller pipe) and the other on the high pressure side (large pipe). Ford F150 AC Relay, Fuse & Pressure Switch Sensor Location. Locate and compare Matarazo-Pressurewashing in Kincardine ON, Yellow Pages Local Listings. The receiver/drier is actually incorporated into the condenser/power steering combination cooler. Step 1: Install the new switch. Joined Jan 2, 2011. This guide highlights four AC brands with the best reputa. Please see the attached info on this switch. all new ac system twice. Automotive Mechanic 25 years of experience The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. How to Detect Low AC pressure Easily Ie F250 or F350. Kincardine, Ontario Weather. I've checked the pressure on the low side, the compressor kicks on when it reaches about 43psi, it runs for a second then immediately drops to below 25psi and kicks off. The most common causes that hinders normal operation of air conditioning system on your Ford F-250 are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. Step 2: Remove the switch electrical connector. Ac low pressure switch location. The switch will be under the hood and plumbed into the Low side of the front AC. Please see the wiring diagram as well to jump the compressor and see if the A/C works and pressures respond properly if the compressor does not come on. Changing out ac pressure switch. For your purposes, you'd need to disconnect the switch, and insert a jumper wire between the red/yellow and tan/light green wires. The air conditioning refrigerant pressure switch is a safety component of the AC system that senses when the pressure in the system is either too high or too . Nope just want location of sensor. Trucks & Trailers - 2011 F250 AC issues - 11' 6. We currently carry 5 A/C High Pressure Side Switch products to choose from for your 2008 Ford F-250 Super Duty, and our inventory prices range from as little as $30. - Additional thoughts on recharging your A/C system Share on David Hobbs helped make these videos Feedback. Don't have the equipment to check, no problem, here's a quicky vid on how to check for low refrigerant in your truck or car. Today’s and tonight’s Kincardine, Ontario weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather. all motorcraft products from dealership purchased by vin. 5times ambient pressure as a rule of thumb and it seems to be pretty close most of the time. I used my circuit tester and there is no power going to this switch. evap core was replaced as well. Ac low pressure sensor p0532. Also it is normal for your compressor to not cycle continuously if the system is properly charged. Location of the recharge port for the AC on a Ford F350 6. robotic sigmoid colectomy cpt code. Motorcraft® A/C Clutch Cycle Switch. This information is typically located under the hood and/or in the The AC pressure switch in F-250 detects and monitors the pressure of . 2003 F-250 XLT Crew Cab 7. I also believe the pressure switch will unscrew, if it has a hex on it to use a wrench then it should unscrew, there should also be a green o ring to help seal it up, I recommend to change the o ring, maybe it comes with the pressure switch, if the Schrader valve is leaking, give it a light twist in the tightening direction, the same as a tire valve tool will work but not too tight, easy to. How Do You Make an AC Generator?. You can just unscrew it (switch) and replace it, there is a Schrader valve which closes off when unscrewed so no pressure/fluid releases. SOURCE: AC low pressure switch, on 2002 ford F250, this is a switch that remains closed as long as there is enough refrigerant pressure to keep it closed. This issue turned out to be the evap temp sensor. This issue turned out to be the evap temp sensor. This range does not include taxes and fees, and does not factor in your specific model year or unique location. Have the installer test the pressure in the system if over 55 psi the switch is bad, if under 55 then check for leaks and recharge. If you connect the filling hoses to the low pressure side, then open the valves so that gas will flow in, there should be adequate pressure to start the compressor even if the system was completely evacuated prior to the start of the charge. 1) the control module, 2)evaporator temp sensor, 3) compressor clutch/clutch gap. Order Ford F250 Super Duty A/C Switch online today. On top of low prices, Advance Auto Parts offers 4 different trusted brands of A/C High Pressure Side Switch products for the 2008 Ford F-250 Super Duty. How to jump the ac low pressure switch on 2011 ford escape. AC high side and low side pressures. Check out free battery charging and engine diagnostic testing while you are in store. 4 where is the ac - Ford F-250 question Oct 30, 2012 • Cadillac Cars & Trucks. voltage to low pressure , but not to clutch. LOCATION OF A/C LOW PRESSURE SWITCH. Low pressure switch is located on the evaporator outlet line Duel function high pressure switch is located on the receiver drier 11. The AC pressure switches are located on the AC pipes on both sides of the AC compressor. 2011 f250 xlt. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more! Full Forum Listing. 3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil. How to Jump the 3 Wire AC Pressure Switch on Your Own ❤️. My symptoms are that the compressor will cycle on for a second, then off for a while, then back on. A faulty Mercedes AC pressure switch/sensor may or may not return fault codes B107A15 & P244A00. Loose the switch with a socket or wrench, then unscrew it. You will achieve this by opening the furnace using the right nut driver or screwdriver. SOURCE: AC low pressure switch, on 2002 ford F250, this is a switch that remains closed as long as there is enough refrigerant pressure to keep it closed. Also, since there is no accumulator in between the compressor and the low side port. Order Ford F250 Super Duty A/C Switch online today.