Introductions:
Car air conditioning compressor is the heart of air conditioning refrigerating system, playing great role in compressing and delivering refrigerating steam. Various compressors at the market must always confuse you. Well, you will rest your mind when you meet our Air Conditioning Compressor 4.2L for Chevrolet Trailblazer EXT 2002-2006! With special treatment on details, this air conditioning compressor will satisfy you a lot. Solid as it looks, this compressor is durable to use. It won't disturb you during its operation. With great performance, this air conditioning compressor is worth having!

Features:
1. New and in a good condition
2. Effective for air conditioning refrigerating system
3. Sophisticated inner construction, premium material and skillful design all promise the excellent quality
4. Easy to install and durable in use
5. Can compress and deliver refrigerating steam efficiently
6. Reliable performance and affordable price

Specifications:
1. Dimensions: (9.84 x 7.48 x 9.06)" / (25 x 19 x 23)cm  (L x W x H)
2. Weight: 16.09lb / 7.3kg
3. Fitment: Chevrolet Trailblazer EXT 2002-2006

Package Includes:
1 x Air Conditioning Compressor

Automobile Air Compressor Installation Instruction

I. The function of air compressor is to compress air, not to cool air. A product that has no signs of leakage, abnormal sound and has sufficient pressure can be certificated as a qualified product.

II. If the original automobile compressor is broken, it indicates the original automobile air conditioning system has already failed. The causes of the failure can be summarized as follows:

 (1) Poor heat dissipation and too much fluoride will cause impressively high pressure, overwhelming the capacity of the compressor and causing components of the connection rod broken or burning lock;

Because of too long vehicle service, the compressor is aging seriously and produces organic carbide ,which will impede water from being drained out by making the pipes blocked or the deliquefaction jar invalid, resulted in  pipeline ice blockage;

 (3)The installed pipe assembly isn't fixed properly, resulted in air leakage.

III. The following steps shall be followed before the replacement of the compressor:

 (1) Clean all pipes of the air conditioning system individually, inject cleaning agent into the condenser and evaporator and soak them for about 20 minutes. Pour out the cleaning agent and dirt with high-pressure nitrogen. The deliquefaction jar, fluid collector and throttle shall not be cleaned; make sure that no residue of the cleaning agent remains in the system; desiccate the refrigerant circuit, if necessary;

（2）Clean the surface of the condenser and evaporator, check if the cooling fans' speed is normal;

 (3) Clean or replace the expansion valve; the deliquefaction jar and pipe filter shall be replaced;

 (4) Check and correct oil filling level and oil viscosity before installing the compressor; vacuumize, fill fluorine, check high pressure and low pressure. Usually, the normal ranges of high pressure and low pressure are 180-200Psi and 30-40Psi respectively. If the pressure is abnormal, diagnose and troubleshoot first before installing the compressor;

（5）Check and correct oil filling level and oil viscosity before installing the compressor.

Note: If the original automobile compressor is jammed and shows cylinder scoring, make sure to clean the pipes and replace the heatsink net. Because the specific characteristics of the heat sink net, the above mentioned problems would produce Aluminum scrap, iron powder and residues that cannot be eliminated. Warranty will not be provided in case of the following circumstance: install the compressor without cleaning the pipes and replacing the heatsink net, which would cause cylinder scoring and lock of the newly installed compressor immediately.