How to Check if a Car Compressor is Working Properly?

1 Answers
SanNatalie
07/25/25 12:18pm
By observing the pressure, turn on the air conditioning, and the low-pressure side gauge should drop. If it does not drop or drops very little, the compressor can be determined to be faulty. Disconnect the compressor's low-pressure pipe, block the rear end of the high-pressure side pipe fitted with a pressure gauge, and then increase the engine speed to about 2000 RPM. At this point, the compressor's high-pressure side pressure should be around 1.5MPa, and there should be no significant change in pressure after the engine is turned off. Otherwise, the compressor can be determined to be faulty.
Was this review help?
3
2
Share
More Forum Discussions

How to Check Vehicle Registration Location?

Methods for checking vehicle registration location mainly include: To inquire about the vehicle information at the local vehicle management office, you need to personally bring your ID card to the archives department of the local vehicle management office for inquiry: 1. If you want to check whether the vehicle information has been transferred to your local vehicle management office: you need to personally bring your ID card to the archives department of the local vehicle management office for inquiry; 2. If a local vehicle is transferred to another location and you want to check whether the vehicle information has been transferred out: you can inquire at any service window of the local vehicle management office with your ID card, and the vehicle status will show whether the vehicle has been transferred out; 3. If you want to check whether the vehicle file has been sent to the vehicle management office in another location: you can track it using the tracking number on the courier receipt.
7
2
Share

What Causes the Tail Lift to Drop Down?

Oil cylinder piston seal performance degradation or valve leakage can cause the vehicle tail lift to automatically descend. Under normal circumstances, many seals can hardly guarantee absolutely zero leakage over extended periods. If the lift drops only slightly over a full day, it may not be an issue. However, if it descends a noticeable distance within a short time, the cause should be investigated. Below is relevant information about tail lifts: 1. Function: Also known as vehicle-mounted tail lifts, these are hydraulic lifting and loading devices installed at the rear of trucks and various vehicles. 2. Advantages: Tail lifts use the vehicle's battery as a power source, featuring environmental friendliness and ease of operation. In today's global context of energy conservation and emission reduction, their advantages become even more pronounced, making them essential equipment for modern logistics transportation.
14
5
Share

What is the button next to the gear shift?

Different vehicles have different functions. Taking the Sylphy as an example, the button next to its gear shift is used for switching gears. Below is some relevant information about the Sylphy: 1. Body dimensions: The 2021 Sylphy comes in two body sizes, measuring 4631×1760×1503mm and 4641×1815×1450mm respectively, with wheelbases of 2700mm and 2712mm corresponding to these two models. 2. Exterior features: The new Sylphy is equipped with power windows, electrically adjustable rearview mirrors, rain-sensing wipers, etc. The floating roof and the windmill-style wheels all highlight the sporty feel of this car.
11
1
Share

Should the chassis be inspected if it gets scratched?

Whether the chassis needs to be inspected after being scratched mainly depends on the following situations: 1. If the vehicle is driving on a normal lane: If it is scratched by another vehicle and the other party admits fault, compensation should be made based on the extent of the scratch. 2. If the vehicle is scratched while parked and the cause is unknown: Minor scratches that are not very noticeable can be concealed by waxing, which is usually not visible and more cost-effective. Here is some additional information: 1. Composition: The automobile chassis consists of four parts: the transmission system, the running system, the steering gear, and the braking system. 2. Function: The chassis supports and installs the automobile engine and its various components and assemblies, forms the overall shape of the automobile, receives the power from the engine to make the automobile move, and ensures normal driving.
18
3
Share

Why is there no sound at high RPM after modifying the exhaust?

Due to the presence of sound-absorbing cotton, there is no sound at high RPM. Here is more relevant information: 1. Only modifying exhaust backpressure: Simply modifying the exhaust backpressure and changing it to a straight pipe can increase the upper limit of the engine's net power output at high RPM. However, the improvement effect is not significant, generally ranging from 5% to 10%, which means recovering the power lost due to the original exhaust backpressure, and it only takes effect at high RPM. 2. Modifying backpressure combined with ECU tuning: This stage marks the entry into the threshold of modification. ECU tuning can increase net power output, and when combined with low backpressure, it can further expand the range of net power output, allowing the vehicle's performance to be further enhanced.
14
3
Share

What does engine assembly replacement mean?

It refers to the replacement of the engine. The engine assembly, also known as the engine, has the following specific meanings: 1. It is a machine for energy conversion: a machine capable of converting one form of energy into another more useful form, typically converting chemical energy into mechanical energy; 2. It includes power devices: those that convert electrical energy into mechanical energy are called electric motors, and sometimes the term applies both to power-generating devices and the entire machine including power devices; 3. Specific examples: such as gasoline engines, aircraft engines; 4. Requires fuel: regardless of the type of engine, its basic premise is to generate power by burning some kind of fuel. Therefore, electric motors that use electricity as an energy source do not fall under the category of engines.
18
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.