Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What is an Automotive Air Conditioning Pressure Gauge?

1 Answers

MacTyler

07/30/25 10:41am

An automotive air conditioning pressure gauge consists of two pressure gauges (low-pressure gauge and high-pressure gauge), two manual valves (low-pressure manual valve and high-pressure manual valve), and three hoses (one connected to the low-pressure gauge service valve, one connected to the high-pressure gauge service valve, and one connected to the refrigerant tank or vacuum pump interface, which can also recover refrigerant). Below is information about automotive air conditioning pressure gauges: 1. Reading the Air Conditioning Gauge: The air conditioning gauge typically has two dials, one blue and one red. The blue dial is the low-pressure gauge, and the red one is the high-pressure gauge. Under normal operating conditions of the air conditioning system, the low pressure ranges between 1.0–2.5 bar, and the high pressure ranges between 15–18 bar, with slight variations possible. When the system is idling, the high pressure may be slightly lower, and as the engine speed increases, the high pressure may rise slightly while the low pressure may drop slightly, though the changes are not significant. 2. Factors Affecting Air Conditioning System Pressure: The pressure in an automotive air conditioning system is influenced by various external conditions, such as ambient temperature, engine speed, condenser cooling conditions, etc. Therefore, the standard for measuring automotive air conditioning system pressure is based on specific environmental temperatures, compressor speeds within a certain range, and condenser cooling under certain conditions, rather than being a fixed standard.

Was this review help?

15

1

Share

More Forum Discussions

How to Replace Spark Plugs on a Prado?

The method for replacing spark plugs on a Prado is as follows: 1. Remove the engine cover and clean the dust and oil around the high-voltage wire terminals; 2. Use a socket wrench to loosen the fixing screws of the high-voltage wire terminals; 3. Unscrew the high-voltage wire terminals, use a socket to remove the spark plugs, and install the new spark plugs. The Prado has a body size of 4840 mm in length, 1885 mm in width, and 1890 mm in height, with a wheelbase of 2790 mm, a ground clearance of 215 mm, a fuel tank capacity of 87 liters, and a vehicle weight of 2285 kg. It is equipped with a 3.5L naturally aspirated engine, delivering a maximum horsepower of 280 hp and a maximum torque of 365 Nm, with the maximum torque achieved at 4500 rpm.

How to Solve the High Fuel Consumption of the Eighth-Generation Civic?

The solutions to high fuel consumption in the eighth-generation Civic are: 1. Clean the engine carbon deposits; 2. Check the oxygen sensor; 3. Regularly replace the three filters and inspect the electronic control unit. The body dimensions of the eighth-generation Civic are: length 4517 mm, width 1799 mm, height 1434 mm, wheelbase 2700 mm, minimum ground clearance 104 mm, and fuel tank capacity 47 liters. The eighth-generation Civic is equipped with a 1.5T turbocharged engine, with a maximum power of 130 kW and a maximum torque of 220 N·m, paired with a CVT continuously variable transmission. It features a front suspension type of MacPherson independent suspension and a rear suspension type of double-wishbone independent suspension.

Where in Shandong is the license plate 'Lu J' from?

Lu J is the license plate code for Tai'an City, Shandong Province. Below is some extended information about license plates: 1. Every vehicle on the road has a corresponding license plate number, which not only indicates where the vehicle is registered but also allows access to the owner's identity information. This helps regulate vehicle operation and ensures traffic safety. 2. A license plate number consists of three parts: the first character is a Chinese character representing the abbreviated name of the province where the vehicle is registered; the second is an English letter indicating the city-level code (e.g., A for the provincial capital, B for the second-largest city in the province, C for the third-largest city, etc.); and the following five digits are assigned based on the order of vehicle registration. As the number of vehicles continues to increase, license plate numbers also expand, incorporating both Arabic numerals and letters.

Where is the license plate with 'Gan' from?

Gan is the license plate abbreviation for Gansu Province. The license plates of Gansu Province include: Gan A - Lanzhou, Gan B - Jiayuguan, Gan C - Jinchang, Gan D - Baiyin, Gan E - Tianshui, Gan F - Jiuquan, Gan G - Zhangye, Gan H - Wuwei, Gan J - Dingxi, Gan K - Longnan, Gan L - Pingliang, Gan M - Qingyang, Gan N - Linxia Hui Autonomous Prefecture, Gan P - Gannan Tibetan Autonomous Prefecture. License plates, also known as vehicle registration plates, are mounted on the front and rear of a vehicle, displaying the vehicle's registration number, registration region, and other relevant information. Their main functions are: 1. Identifying the vehicle's registered region through the license plate; 2. Tracing the vehicle's owner and registration details based on the license plate.

How to set the Teana turn signal to flash 5 times?

The method to set the Teana turn signal to flash 5 times is: You need to visit a professional repair shop to resolve this. The turn signal is an important indicator light that activates when the vehicle is turning, alerting surrounding vehicles and pedestrians. The Teana has a body size of: length 4901mm, width 1850mm, height 1450mm, with a wheelbase of 2825mm and a fuel tank capacity of 61.3 liters. The Teana is equipped with a 2.0L naturally aspirated engine, delivering a maximum power of 115 kW and a maximum torque of 197 Nm, paired with a CVT continuously variable transmission. It features a front suspension type of MacPherson independent suspension and a rear suspension type of trapezoidal control arm multi-link independent suspension.

What should I do if the interior door panel of Volkswagen Sagitar makes noise?

Noise from the interior door panel of Volkswagen Sagitar may be caused by the door limiter. The solution is to apply some grease or spray automotive rust inhibitor, which will significantly reduce the friction of the door limiter and eliminate the noise. The possible causes of door noise in Volkswagen Sagitar are as follows: 1. Noise caused by the internal wiring harness hitting the door panel. When driving on bumpy roads, the internal wiring harness may hit the door panel, resulting in continuous noise. Solution: Remove the interior door panel, secure the wiring harness inside, and attach small pieces of sponge to the door panel where the wiring harness is located. This way, the wiring harness will hit the sponge instead of causing noise. 2. Noise caused by the door seal. Over time, the door seal may age, causing friction between the seal and the car body, which can produce noise while driving. Solution: Check the door seal and replace it with a new one if necessary. 3. Noise caused by the door itself. This issue occurs when the door lock post is installed too far outward, preventing the door from fitting tightly with the car body. Solution: Adjust the door lock post inward gradually until the door fits tightly with the car body.

Trending Ranking

How to Open the Fuel Tank Cap on a BMW 3 Series?

How to reset the tire pressure light on the Magotan?

What is the wheelbase of the MINI Clubman?

What transmission does the Oshan X7 use?

How often should Civic brake pads be replaced?

What does 'off' mean when it appears on a car?

What is the English name for Volkswagen Sagitar?

How to Reset the Trip Mileage on the Baojun 510?

What are the differences between the Sagitar 30th Anniversary Edition and the Beyond Edition?

What is the difference between Volkswagen 330 and 380?

More Forum Discussions

What are the symptoms of a bad clutch disc?

How to Handle Traffic Violations for a Vehicle Not Registered Under Your Name?

What is the difference between Audi A4 and Audi A4L?

What is Electronic Control Suspension?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.