Trailblazer ac high pressure switch. Usually, the switch must be replaced if this occurs.

Trailblazer ac high pressure switch com FREE DELIVERY possible on eligible purchases All A/C conditioning pressure sensors utilize I am getting the same voltage output from the HVAC LPS switch output wire as I am getting on the plug to the LPS. It monitors the pressure of the refrigerant on its respective side of the system. Faulty blend door actuator. This Part Fits: Catalog: A. With 3 terminal. Choose top quality brands AC Delco, Original. If happening while going down the road, likely not the clutch. Check prices & reviews on aftermarket & stock parts for your 2004 Trailblazer AC High Pressure Side Switches. Pressure Notes: HVAC Pressure Switch Connector. Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum. The AC would start briefly. 1st clutch failed @ 18-20 months I have a 2003 trailblazer with the 4. Next, 2006 Trailblazer EXT LS with 61,000 miles. It's actually risky to bypass the low pressure switch because it's there to protect the compressor. Filter By Brands 1 - 5 of 5 results for A/C High Side Pressure Switch Compare Filter/Refine. Hi, My 2006 trailblazer has not had a functioning AC since I bought it last summer. There's a high pressure cutout switch on the compressor. If the lp switch is good, then you most likely have a bad compressor clutch/coil assembly. to/2QmNBri Check out our Amazon St In this video, you will learn 4 symptoms of a bad ac pressure switch. LS3 heads BTR Hardware LT1Z Custom Cut Cam, 4L80e Swap with Circle D Converter, NORCAL's Upper A-Arms and KBEE's, Rear Airbag Delete, 2002 Chevy Trailblazer Air Conditioning Problems. Your impala uses a pressure sensor. 36. On newer vehicles, using a scan tool while the air conditioning system is running is one of the fastest ways to diagnose problems with the A/C low-pressure switch. “Changed the pressure switch and got the a/c working again” from $ 263. 5v to avoid the high and low cutout thresholds. You'll need a high end scanner or a tech 2 to check it, may be the cause of your problems. The compressor still will not cycle on. My TB had that problem the first 3 1/2 years of its life until they came up with an improved clutch to move enough air and keep the AC system pressure within proper operating range. Buy AC High Pressure Sensor Switch for Chevy 2007 Trailblazer: Hi Pressure Side - Amazon. com FREE DELIVERY possible on eligible purchases 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Pressure Transducer mt1247. 2002-2009 Chevrolet Trailblazer A/C High Side Pressure Switch - GPD 1711438 - PartsGeek. Safe? Technically yes as I’ve never seen a compressor just explode. . Quantity per car: 2. If you’re in search of Chevrolet Trailblazer Air Conditioning Parts aftermarket or OEM parts, consider your search over! AC High Pressure Side Switches. The AC control switch is what powers and controls the AC compressor, as well as the entire system. pushrod on . Notes: HVAC Blower Motor Resistor Connector. Pressure Also, had to adjust the fan % with the AC pressure as well, since it was letting head pressure get pretty high. Just to say I did, I checked the gauges one more time. The mechanic at the shop was 2007 Chevrolet Trailblazer - A/C High Side Pressure Switch Filter By Off Pressure (psi) 1 - 4 of 4 results for A/C High Side Pressure Switch Compare Filter/Refine. That's kind of a bummer. I tried to jump the LPS plug terminals again with no luck. Buy a 2004 Chevrolet Trailblazer A/C Pressure Switch at discount prices. Reviews. My AC compressor was going kicking on and off. com FREE DELIVERY possible on eligible purchases Four Seasons 35961 Compressor Mounted High Cut-Out Pressure Switch. The ac also will not run without a signal from the high pressure switch. It's on the receiver/drier, and the connector can be pulled and jumped with a paper clip for a test. #Silverado #Chevy #PressureSwitch #JoshBrownReplace Your A/C Pressure SwitchI'm glad you've joined me for my new video! Remember to SUBSCRIBE and click that Air Conditioning Problem, 2002 Trailblazer. Type: 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Pressure Transducer mt1247 Suburban for 2007-2014 Suburban 1500 for 2003-2011 Suburban 2500 for 2018 Suburban 3500 Hd for 2007-2019 Tahoe for 2007 Trailblazer for 5. Come join the discussion about performance, modifications, troubleshooting, towing capacity, maintenance, and more! The high pressure switch, if your impala had one, would turn on the fan once the a/c pressure on the high side reached a certain pressure. All fit 2002-2025 Chevrolet Trailblazer and more. TOOLS & PARTS BELOW KEJSTED Oil Pressure Sensor Switch Sending Unit D1843A 12635957 Compatible with Chevy Colorado Equinox Trailblazer Malibu Impala GMC Envoy Canyon Buick Lacrosse Enclave Rainier Cadillac SRX 12570964 12677836 Engine Oil Pressure Sensor Switch Compatible with Chevrolet, Silverado, Cadillac, GMC, Pontiac, Buick Rainier D1846A Tips on How to Access the A/C Low-Pressure Switch. Brand: AC Delco. Testing your Trailblazer’s AC system pressure can help determine if you are chasing a leak or if there’s another issue at work. Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum So, my question is: what functions does the high side pressure switch provide? I was under the impression that it would be the switch that would kick out the compressor when it got too high in pressure, but also to turn on the fans. First check the refrigerant for proper charge then perform the high The high pressure switch is a safety that protects the compressor by shutting it down if pressure get too high. High refrigerant pressure in your AC condensing unit is the main cause of a tripping AC high pressure switch. 04 2004 Chevrolet Trailblazer A/C High Side Pressure Switch - Climate Control - Dorman, GPD, UAC - PartsGeek 05-11-14 06:36 PM - Post# 2452134 In response to gchemist The cooling/condenser fan is an electric over (normal) hydraulic fan clutch which supplies quite a bit more airflow than most thermal only clutches when low temps/head pressure are present; and a tremendous volume of airflow when partially/fully engaged. A low pressure is normally on and a high pressure is normally off (this can vary greatly depending on the car). 97 at PartsGeek. With manual A/C controls. AC Switch Connectors. Notes: High Pressure Cut Off. it didn't solve the problem of the AC intermittently going out in my Trailblazer. $40. Mechanic states Chevy Silverado A/C system compressor pressure switch leak repair. ACDelco GM Genuine Parts 15-50812 Air Conditioning Refrigerant Pressure Switch. The parts and labor required for this service are How It Works. I am running into an issue with the AC system on my 2003 chevy trailblazer. Choose top quality brands Dorman, GPD, UAC. 1. At 1500 RPM, the high moves I went to see an auto air conditioning specialist today. This can be caused by a faulty high pressure switch - They were faulty in the past for GM. Ok, it worked for a few trips, if I turned the rear AC on high the front would stay on and get to 45 degrees. 2006 Chevrolet Trailblazer - A/C High Side Pressure Switch Filter By Off Pressure (psi) 1 - 4 of 4 results for A/C High Side Pressure Switch Compare Filter/Refine. Carquest Premium – HVAC 2008 Chevrolet Trailblazer - A/C High Side Pressure Switch Filter By Off Pressure (psi) 1 - 4 of 4 results for A/C High Side Pressure Switch Compare Filter/Refine. 20055) from $ 34. The last thing I decided to test was jumping the relay and sending power directly to the ac clutch which also did not make it engage. Really acts like it is almost out of freon. Quick video replacing the Ac Pressure Switch. 3-4 sec is extreme and not covered in the above. If your compressor engages, you found the problem. Pull the clutch/hub assembly off, remove the shim and give it a try. 99. Pricing. Pull the wire connector and and use a small paperclip or wire to jumper the terminals inside the wire connector. Flat rate pricing based on labor time and parts. Next, Put a jumper in the low pressure switch just to confirm it's not bad. I've had two go bad on my 2002 and even a licensed A/C shop missed it as the issue. Impala;'16 MalibuLT;'15 Camaro LS;'15 Traverse; '13,'12 and '07 Avalanche LTs; '11 Tahoe LT; '13 &'11 Malibu Testing the AC high-pressure switch is crucial for maintaining our air conditioning system’s functionality and performance. Vehicle; 2008 Chevrolet Trailblazer : Show More. Jump to Latest Any AC professional taken a look at the high and low side pressures with their gauges? Save Share Either a failing low pressure cycling switch, mounted on the side of the receiver/drier, or low freon pressure. Murray Climate Control 2 Terminal Multi-Purpose Switch - 20055. Disclaimer: Under no circumstances will proclaimliberty2000 be Compare 2003 Chevrolet Trailblazer AC High Pressure Side Switches brands. When the AC was turned on, the compressor would not cycle, which prompted me to assume it was low on refrigerant. Could be undercharged causing low pressure and cutout. Trusted mechanics, rated by thousands of happy car owners. 2006 AWD- NOT C6 Pan Now, PCMofNC Spal fan setup Turbo Build-A. We begin by locating the high-pressure switch, typically found near the compressor or refrigerant line. The high pressure side is a sensor, not a switch. I. 3M posts 183K members Since 2004 A forum community dedicated to Chevy Trailblazer and GMC Envoy owners and enthusiasts. Conversely, the high-pressure switch is found on the larger pipe. 99 First you should confirm operating pressures in the system on both the high side pressure and low side pressure. This Part Fits: AC Delco A/C Pressure Switch . After a couple of minutes it was reading 90 psi on the low side and 350+ on the high side. Santech – Air Conditioning Pressure Switch (Part No. R1054388863SII) from $ 21. Check the low pressure switch mounted on the receiver/drier. Murray Climate Control 2 Terminal Multi-Purpose Switch - 2007 Chevrolet Trailblazer Belt; 2007 Chevrolet Trailblazer Radiator; 2007 Chevrolet Trailblazer Water Pump; 2007 Chevrolet Trailblazer Thermostat; 2007 Chevrolet Trailblazer Radiator Fan Assembly; 2007 Chevrolet Trailblazer A/C Heater Blower Motor; 2007 Chevrolet Trailblazer A/C Hose Assembly; 2007 Chevrolet Trailblazer Blower Motor Resistor It takes time to heat up the clutch and get the fan moving air. At idle the high side of the AC is at 150, and the low side is around 30. After several of these cycles it settles in to 210 psi on HI & 35 psi on Low. 1993 c1500 - 5. 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Pressure Transducer mt1247 1500 2007-2014 For Chevy Suburban 2500 2003-2011 For Chevy Suburban 3500 Hd 2018 For Chevy Tahoe 2007-2019 For Chevy Trailblazer When replacing the low pressure switch on a 2003 trailblazer do I need to remove the refrigerant before replacing the low pressure switch . There is a high side Some are low pressure switch, high pressure switch, above freezing ambient temp, engine not overheating and not at WOT, to name a few. 7L - 2nd style a/c system (originally r12, retrofitted) A few months ago I replaced my compressor, dryer, orifice tube (the expensive auto-adjusting extreme duty one), and condenser. Is replacing the High pressure switch similar to the low pressure, just unscrew and replace it or is there a procedure to replacing it. The AC duct temperature never seems to get as cold as it should. Changing th 1 - 24 of 135 results for A/C High Side Pressure Switch Compare Filter/Refine. Air conditioning switches, like all electronic components, can wear or fail over time and can cause a variety of symptoms depending on which switch is no longer Buy a 2004 Chevrolet Trailblazer A/C High Side Pressure Switch at discount prices. 42. I gauged the low pressure port with the truck not running, and it was less than 20 psi. If you’re looking for the AC pressure switch on your 2004 Chevy Trailblazer, you’ll find it on the compressor. The AC would start briefly for 1/2 second Have you checked the AC pressure switch to ensure it is functioning properly? Traffic on JustAnswer rose 14 percentand had nearly 400,000 page views in 30 daysinquiries related to stress, high blood pressure Buy AC HIGH HVAC Pressure Switch Connector Wire Plug Pigtail Wiring harness Compatible with CHEVY AVALANCHE EXPRESS SILVERADO SUBURBAN 1500 2500 3500 BERETTA BLAZER IMPALA MALIBU TRAILBLAZER 1995-2012: Wiring Harnesses - Amazon. Replacing your AC pressure switch is not only a great DIY project but also a potential money-saver. 2 TrailBlazer as AC high pressure sensor. If the A/C system leaks, you can chase it down with a leak detection kit and UV dye An AC clutch cycling switch meters low side AC pressure. It will have one, otherwise nothing to prevent excess pressure from destroying the compressor or bursting a hose. The most common thing that fails is the low pressure cutoff switch, but there other reasons the AC compressor might be suppressed. 2. Notes: Buy a 2008 Chevrolet Trailblazer A/C Pressure Switch at discount prices. for testing purposes the sig wire (red/black) would have to be manipulated to roughly 2. PRICE: . Check prices & reviews on aftermarket & stock parts for your 2003 Trailblazer AC High Pressure Side Switches. Honda Accord A/C Switch; Honda Civic A/C Switch; Ford F150 A/C Switch; Chevrolet Silverado 1500 A/C Switch; Toyota Camry A/C Switch; Nissan/Datsun Altima A/C Switch; Dodge Ram 1500 A/C Switch; Toyota Corolla A/C Switch; Chevrolet After connecting the Switch plug and as soon as you attach the R-134A can from Autozone with the hose and gauge attached to the Low Side Blue fitting and introduce more refrigerant when the pressure comes up to around 40 to 50 PSI the New Low Pressure Switch will make a closed circuit and allow the Compressor clutch to engage. Chased an A/C problem for months, and it turned out the high pressure switch was intermittent, there were corroded wires inside the insulation. Check the wires to that. High pressure switch is built into the compressor so you most likely replaced the low pressure cut out on the accumulator. 49 In this video, I show you a few simple tests I used to narrow down the problem causing my air conditioning not to work on my 2003 Chevy Trailblazer Extended. Found a cut wire at the low-pressure switch, and installed a new pigtail with no change Buy 1551343 AC Pressure Sensor Switch, 15-51343 13587668 Air Conditioning Refrigerant Pressure Sensor, Compatible with 2002-2021 Chevy Suburban, 2003-2020 GMC Sierra, HVAC Pressure Transducer: Compressor Refrigerant Pressure - Amazon. Does anyone know where I can find this part in my engine? It should be on the passenger side in the Your Chevrolet Trailblazer will be happy to know that the search for the right AC High Pressure Side Switches you’ve been looking for is over! Advance Auto Parts has 14 different AC High Shop wholesale-priced OEM Chevrolet Trailblazer HVAC Pressure Switches at GMPartsGiant. It’s a small black switch that controls the flow of refrigerant in The high side refrigerant pressure will shoot way up and shut off the compressor. When it is detected that the pressure has dropped below a certain There's a high pressure switch on the A/C lines near the compressor. Get it as soon as Saturday I replaced my compressor accumulator orifice tube high pressure sensor low pressure sensor and a new sensor for the back of the compressor new GM Schrader valve and service port/ high side fitting you will need a . So it turns out the pid & formula I found online is the correct one for a 2002 4. Part #: 20055 Line: MRY. 90 $ 12 . Vehicle; 2004 Chevrolet Trailblazer : Show More. Skip to. With 7 terminals. 2008 Chevrolet Trailblazer Water Pump; 2008 Chevrolet Trailblazer Hose (Upper) 2008 Chevrolet Trailblazer Hose (Lower) 2008 Chevrolet Trailblazer Radiator; 2008 Chevrolet Trailblazer A/C Compressor; 2008 Chevrolet Trailblazer Water Outlet; 2008 Chevrolet Trailblazer A/C Heater Blower Motor; 2008 Chevrolet Trailblazer Thermostat Gasket; Show Less TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada but I believe the high pressure switch is a cutoff switch for excessive high pressure to stop the system from damaging itself. 49 Buy 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Pressure Transducer mt1247: Compressor Refrigerant Pressure - Amazon. com 1551343 AC Pressure Sensor Switch, 15-51343 13587668 Air Conditioning Refrigerant Pressure Sensor, Compatible with 2002-2021 Chevy Suburban, 2003-2020 Cadillac GMC Sierra, HVAC Pressure Transducer $12. Black female connector. Bad AC pressure switch. I found a post on here that said all wiring diagram PDFs were uploaded to a resources section but I can’t seem to locate that section on the forums. 20058) from $ 29. Check prices & reviews on aftermarket & stock parts for your 2008 Trailblazer AC High Pressure Side Switches. AC compressor not coming on. 3. My 2004 wouldn’t blow cold air so I Compare 2004 Chevrolet Trailblazer AC High Pressure Side Switches brands. Watching this video will help you diagnose if it is time to replace your ac pressure sw Buy 2002-2009 Chevrolet Trailblazer A/C High Side Pressure Switch GPD for a low price of $25. It's in a sealed well. I think it has enough refrigerant. AC Compressor Cut-Off Switches. Then I just bought a new high pressure switch and installed it but that also did not fix the problem. make sure that there is power to the compressor by checking the fuse. I'm trying to change my a/c high side pressure switch in my 2003 trailblazer. This switch helps the AC system maintain proper cabin and evaporator temperatures. HOW TO TEST AC PRESSURE SWITCH ON CHEVY, CHEVROLET, GMC, BUICK, CADILLAC AC NOT WORKING Great Car Scanner: https://amzn. If it clicks back on with the jumper wire then it's a bad switch. 49 High quality OE replacement part with all components needed to AC high pressure sensor broken ! any temporary solution? Jump to Latest The high pressure switch is a 3 wire transducer (5v ref, low, and sig). Sort By: Compare. How It Works. So far I have verified it has pressure in the system (tried to add an AutoZone bottle but saw the system was already full). Answer. I received the same reading with the engine running and AC off and then on. Second Opinion] I am running into an issue with the AC system on my 2003 chevy trailblazer. AC diagnostics are something I don't If your Chevy Trailblazer's AC system is not working, it can be uncomfortable and downright dangerous on a hot day. Wise? Depends on the unit. Popular Answer. Trusted mechanics, rated by With the key on engine off and AC on jump the connector at the high pressure switch and if you hear the clutch click on the compressor its more then likely the switch. It’s essential to ensure the condenser fan is operating properly, as a failure here can trigger the high-pressure GM Air Conditioning Pressure Switch Problem and Replacement!!Don't Charge Your A/C Till You Check This!!In this video I fix an issue I was having with my GMC Buy General Motors GM Genuine Parts 15-50156 Air Conditioning Clutch Cycling Switch: Clutch Cycle - Amazon. But if you don’t have a scan tool, you can still assess the pressure switch manually using an A/C pressure gauge set. Factory Air – Compressor Mounted High Cut-Out Pressure Switch (Part No. 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Buy Four Seasons 37308 System Mounted Cycling Pressure Switch: Pressure in Cycle - Amazon. c) Usin It is mounted in the low pressure side of the AC system and its purpose is to detect the flow of refrigerant in the system by measuring the pressure. b) Locate the pressure switch and identify its three wires. Just today I edited the Torque Pro extended pid for AC High Pressure so it now works on my 2002 4. 90 This took care of my intermittent compressor issue. Part #: 20050 Line: MRY. Or you could trace the wire and see if it's just open to the PCM. Blend door actuator plays a role in controlling the air flow and temperature inside your TrailBlazer. A GM TechII tool could diagnose it to the inside of the PCM or some sensor input suppressing AC operation. If you’re having trouble with your 2002 Chevy Trailblazer’s air conditioning, you’re not alone. I took it to a shop, and they vacuumed it down, verified no leaks, then refilled the refrigerant and oil. At start up the low pressure is at about 40 psi low side and 175 and climbing on the high side. In this video, I teach exclusive information about symptoms of bad ac pressure sensor across different car makes amd model. High Pressure Cut Off. Chevrolet Tuck air conditioning blowing hot air repair. com. 99 $ 40. It will take about 20-30 seconds for the system to build up enough to 1551343 AC High Pressure Sensor Switch,15-51343,13587668 Compatible with Chevy Suburban Tahoe 2002-2021,Buick Cadillac GMC Sierra 2003-2020,Pontiac Saturn 2002-2010 HVAC Pressure Transducer mt1247. If this sensor develops a defect, it will send incorrect values to the control unit and the AC compressor will not turn on. Pressure on the low side is extremely high. FLAT RATE SHIPPING on most GPD 1711438 orders. If it’s an older one and the AC has lived around it’s life expectancy then I say start saving for a new system and run it til it dies Watch at proclaimliberty2000 how to easily diagnose the AC pressure switches on your vehicle. Chevrolet Trailblazer Car AC Clutch Cycling Switch Replacement costs starting from $130. 99 (29) Reman Sanden/Sankyo TRSA12B Compressor w The AC pressure switch is a safety switch that is mounted on both the high and low sides of the air conditioning system. If you've replaced this, and you have proper 134a charge levels while the compressor is running then it's a weak field coil as others have mentioned. Choose top quality brands AC Delco. I’m a retired I tried jumping a low pressure switch which did nothing I jumped the AC relay and was able to get these readings on my manifold set with the clutch engaged. Part Number: W0133-1811109. The low side is about 50 psi when this occurs. 2004 Chevy Trailblazer Ac Pressure Switch Location . An AC booster fan that runs when the AC clutch is on or electric fans mod will help. Usually, the switch must be replaced if this occurs. If you have access to a Tech 2, it will give you all the info you need as to what's wrong. May 21, 2015. The AC pressure switch in TrailBlazer detects and monitors the pressure of the refrigerant in the AC system. Your mechanic couldn't troubleshoot this? Notes: HVAC Pressure Switch Connector. Compare 2008 Chevrolet Trailblazer AC High Pressure Side Switches brands. " Read more "Awesome part Check your manual again for a high pressure cutout switch on the compressor high pressure side. 1 reply Report. Jump to Latest Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum. Note: If the blower motor suddenly fails from one second to the next, you must first check whether a blown fuse is responsible for the failure. 1 Year Limited Warranty. Switches are just that, they are either on or off. 7. By chatting and providing personal info, you understand No, the high pressure switch will not cause this issue right away like you are experiencing. 3M posts 183K members In this Video we're going to talk about how to spot a bad AC pressure switch in your car since it’s one of those features that we tend to ignore until it cau You cannot repair a broken blower motor, the part must be replaced with a new one. It activates if the refrigerant pressure is excessively Air conditioning switches monitor the pressure and temperature of the refrigerant in the A/C system and control different aspects of the heat and A/C in the cabin of the vehicle. But what causes high refrigerant pressure in your AC? The most obvious cause of high refrigerant pressure is a high refrigerant charge – but that’s actually quite rare since the only way for a high refrigerant charge to occur is if About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright I'm having some trouble with my air conditioning on my 2003 Trailblazer. com FREE DELIVERY possible on eligible purchases. And the system doesn't need to be opened, reclaimed, or refilled if you change the switch. Common signs of failure include a bad compressor or lack of AC. 49 High quality OE replacement part with all components needed to The AC pressure on my 2004 Envoy when first started goes to 450 psi and trips high pressure switch. Hello, I am trying to diagnose and AC issue. Pressure A/c low pressure switch (at right rear of eng compt, on accumulator) A/c press sig; A/c refrigerent pressure sensor (on high pressure line near a/c comp) A12; Am/fm; Ambient light sens; B11; B12; Body control module (beneath left rear seat, on rear fuse block) Comp rly cntrl; Cooling fan; Cooling fan relay; Data link connector (on bottom of 2003 Chevrolet Trailblazer - A/C High Side Pressure Switch Search Results. These vehicles have a high pressure switch in the line near the compressor. Shop for the best A/C High Side Pressure Switch for your 2002 Chevrolet Trailblazer, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. Murray Climate Control 2 Terminal Multi-Purpose Switch - 20050. I added oil, vacuumed the system, and then started my To test a 3-wire AC pressure switch, follow these steps:a) Disconnect power to the AC unit. thanks. If you have power everywhere and the system is charged properly this will tell you if the switch is bad. AC Delco A/C Pressure Switch . The Is your car's air conditioning system not functioning properly? In this video, we will explore the common bad AC pressure switch symptoms and look into its l The AC pressure switch protects the AC system from pressure that's too high or low. Another symptom that may present itself when the AC control switch has failed, is the compressor not coming on. My a/c turns on and off by itself. Material: Metal, Plastic. 2 engine, with no rear AC. Thread Size: 5/8 Inch. When this happens, you will only get hot air from the air vents of your vehicle’s AC. 86 Air Conditioning Pressure Switch View Product. ghljeaz hdmzq wflkmn hbijmj rcwqq vzvmdb qsxt wzizrg tllvl gboro gzvoprzh locqrq gmicq nmxeo ffurjm