1987-1995 Jeep Wrangler YJ

IMPORTANT INFORMATION ABOUT THE INSTALLATION FOR THE YJ A/C KIT

Evaporator / Blower Unit information:

We have removed the blower motor from the unit in order to ship it safely. We have had problems in the past with the shipping companies damaging the products so we have dissembled the unit to lower the risk of damage during shipping.

Wiring information:

In order to make the installation process less complex we have simplified the wiring for this a/c system.

There are only three wires to hook up. A test light will be used to hook up one wire.

Wire with a fuse inline. This wire hooks into an ignition source, a hot wire with the key on. Use the test light to find this source.
Wire with an inline plug. The inline plug goes to the switch on the drier, from the plug in the drier to the compressor. DON'T HOOK THIS UP UNTIL YOU CHARGE THE SYSTEM.
Ground wire, there will be one wire on the blower motor that is not plugged in. Ground this wire to the chassis. (Normally Yellow or Red)

Radiator hose adjustment:

After installing the radiator and attaching the upper hose, it may hit the a/c compressor clutch. If this happens please rotate it an inch or two away from the compressor clutch, then retighten the clamp. See diagram below.

Important information about your system, and warranty

DO NOT ADD ANY OIL TO ANY PART OF THE SYSTEM.
DO NOT USE THE SIGHT GLASS TO CHARGE THE SYSTEM.
DO NOT OVERCHARGE THE SYSTEM.

The YJ Kit is designed to work with R134a refrigerant, not any other refrigerant (freon). The system has been designed and tested using R134a refrigerant. The systems performance with this freon was as expected. Vent temperature of 37-45 F Degrees, and a high side pressure reading at 200-220psi.

The system should not exceed 230psi on the high side, and the low side will stabilize if all is installed correctly.

WE NEED THE HIGH SIDE GAUGE READING IN ORDER TO HELP WITH ANY PROBLEMS.

The system needs to be evacuated for maximum performance. The system will take 1.75lbs of R134a refrigerant, or two cans. You want the high side to be 200-220psi when the system on and the Jeep is idle.

DO NOT ADD DYE TO CHECK THE SYSTEM. WE HAVE HAD PROBLEMS WITH THE EXPANSION VALVES GETTING CLOGGED.

If you have a problem with the system we ask to call before diagnosing or changing any parts. We can fix problems easier if the system is not tampered with.

If you have a warranty claim you need to call prior to shipping any parts back.

OUR POLICY IS TO GET THE OLD PART BACK PRIOR TO SHIPPING ANY NEW PARTS OUT.

We are not responsible for the following:

Clogged expansion valve from too much oil, or dye.
Cracked compressors from improper installation
Compressor with broken valves from overcharging of oil or refrigerant

We will be here to serve you seven days a week by phone and / or email Please contact us if you need assistance. 888-977-8889

Next: Parts List & Step One