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FAQs

General

QUICK DISCONNECT FITTINGS

View the corresponding pictures to see how the whole process goes.
 

1) What is a quick disconnect?
A quick disconnect is an a/c fitting that is used on most automobiles. The fitting consists of a male and female end, a spring, a housing to hold the spring, and two or three o-rings.

 

2) What is a quick disconnect tool?
The tool is actually a set of four tools. The four tools correspond to the four sizes of a/c lines. The lines are labeled in numbers from smallest to largest; #6, #8, #10, and #12. The fittings fit on the hose but will not close fully, unless force is applied. Be sure to use the correct size on the correct hose, the tools are plastic and can break if to much force is applied. The tool has a small inner rim that will force the spring open.

3) How do you take apart a quick disconnect fitting?
Special tools are needed to remove a quick disconnect. The tool is used to move the spring off of the female retaining "flare", see figure 1.1. After pulling the two fittings apart they will not separate until the tool is removed. If the system was not fully discharged leave the tool on until the refrigerant is removed.

4) How do you reattach a quick disconnect fitting?
The fittings push together with some force, and oil is recommended. The oil is to be applied to the o-rings and not anywhere else, only use the recommended a/c oil (PAG 20,46, 100, or 150). Make sure when pushing the fittings together that they "click" together, and cannot be pulled apart. If they are not pushed together properly they will blow apart when the system is charged.

If you have an old R-12 system and you want to convert it to an R-134a system. You will need to do the following:

The oil needs to be blown out of the system, and drained from the compressor. (DO NOT FLUSH COMPRESSOR) The compressor will have a drain on some models. The oil needs to be drained from the fittings that the hoses connect to and the drain if it is present.

The evaporator, condenser, and hoses need to be blown out with air.

To convert the system to R-134a you will need the following parts:

Pag 46 oil (six ounces for the entire system added back into the compressor; for Jeeps only) new drier, or accumulator drier, new expansion valve, or orifice tube, R-134a charge port adapters (high and low side)

By cleaning the oil out of the system, and replacing the parts listed above your vehicle will be ready to accept R-134a.

Note: If a system has an accumulator it will have an orifice tube. If the system has a drier it will have an expansion valve.

Note: If your Jeep has a york compressor your system will use eight ounces of ester oil. The drains are on the side of the body. Remove both drain plugs to drain it and fill it through one hole.

On 1997 through 2006 Jeep Wranglers the air flow from the air conditioning will stop blowing out of the a/c vents, and the floor outlets. The only air flow that will vent is through the defrost outlets on top of the dashboard. If your Wrangler is showing the same symptoms as the ones explained you have a vacuum leak in the a/c control head vacuum lines. To begin diagnosing the problem start with the vacuum tube that exits through the firewall between the two evaporator lines. There will be a black vacuum line that exits through the firewall and runs under the engine compartment. The leak is most commonly found in this tube that is under the engine compartment. if that is not where the leak is check all the tubes on the evaporator case and the vacuum harness on the control head.

The drain tube on the Grand Cherokee is on the passenger side of the vehicle. The drain exits into the subframe of the Jeep. The water will drain from the frame near the center of the vehicle. If the drain is clogged the you can do the following steps to fix the problem.

  1. Pull the carpet down on the passenger side foot area. Locate the drain in the evaporator housing. Water may get on the carpet, place something on the floor.
  2. Drill a 1/4 inch hole in the center of the drain tube housing. Clear the drain with a wire or coat hanger. Insert the wire through the hole and into the drain tube. 
  3. Scrape the foam from behind the drain housing area. Fill this area with black RVT silicone. 
  4. Either insert a plug (see below) or use a two part epoxy to fill the hole.

DRIER
The drier is used on many a/c systems. It receives refrigerant from the condenser. The drier is mounted either adjacent to the condenser or somewhere in line before the expansion valve. It consists of a tank, a filter, a drying (agent) desiccant, a pick up tube, and a sight glass (on some applications) it has several functions.

First the drier acts as storage tank. It receives the liquid refrigerant from the condenser and holds this liquid until the evaporator requires it. Requirements vary according to operations conditions.

Second the drier acts as a protection agent for the system. The portion of the drier that contains the desiccant absorbs moisture from the refrigerant. The desiccant is usually in the form of silica gel. It is important that the moisture be removed from the system, as it can be extremely harmful to the air conditioning system components and to the systems operation.

The sight glass is not used with R-134a, it was used on vehicles made before 1994 that used R-12 freon.

ACCUMULATOR
When an accumulator is present there is not a drier in the system, they perform the same function.

The accumulator is mounted in the low side of the system, at the outlet of the evaporator. The function of the accumulator is to store (accumulate) refrigerant and to filter and dry the refrigerant. The accumulator also contains a desiccant. If any liquid refrigerant passes out of the evaporator the accumulator will store it. Liquid refrigerant is harmful to the compressor. Moisture is also harmful to the air conditioning system.

Why Change the drier or accumulator?
It is the job of the drier or accumulator's desiccant to remove the moisture that may enter the system.

If too much moisture enters the system (due to component malfunction or hose leakage), the desiccant will have to be replaced. This replacement may require complete replacement of the drier or accumulator because the desiccant is normally not removable.

The drier or accumulator should be changed if the system is opened, or a leak occurs, or if the system has the symptoms of having moisture in it. Moisture that enters an R-12 system will combine to form hydrochloric acid (HCL), which is harmful to the components. Moisture that enters the R-134a system will not form any harmful acids, but will lower system efficiency. R-134a in a liquid form will not absorb much moisture, but in a vapor state R-134a can absorb large amounts of moisture. On both systems (R-12 and R-134a) moisture can also gather on the expansion valve or orifice tube and freeze. This blocks the flow of refrigerant and prevents the cooling action at the evaporator.

The installation on the CJ is a fairly simple install. The system requires the hoses to be crimped with a special hose-crimping tool. The system will also have to be evacuated and charged properly (as per our directions) in order to achieve maximum performance.

The system will not require any special tools. Three holes in the firewall for an a/c only system, and five if you are adding heat and air. Hole saw sizes 3/4" and 1-1/4". The rest of the system installs with metal screws, nuts and bolts, and fittings on the hoses. The wiring of the system is a three-wire setup. An ignition wire for the power source, a ground wire, and a wire to the safety switch then to the compressor. The system does not require any alterations to any existing heating or dashboard components, (unless adding heat and air). The system is pre-oiled, and ready to charge once installed. Please see the instructions link for more details on the installation.
Installation time 7-10 hours.

The YJ Installation is a very easy system to install. The a/c lines are pre-crimped, the condenser, and drier are made specific for the vehicle.

The system only requires two special procedures to install the system.

  1. Three holes need to be made in the firewall area, one 3/4" hole and two 1-1/4" holes.
  2. On the radiator core support two small pieces of metal need to be removed.

The system does require 1.5 lbs of R-134a freon. The system will need to be evacuated as well.

Directions are included with the system and are available on the website under the instructions tab.

Install time is 6-8 hours.

This system is simple to install, the system does require the dashboard to be removed. Other than removing the dashboard the system snaps together. This system was designed with the consumer in mind. All hoses are pre-made; all parts are designed to fit the TJ without any fabrication.

The system needs to be evacuated and charged with the proper amount of refrigerant per our directions.

Directions with many installation photos are included. We also offer technical assistance five days a week.

Installation time 8-12 hours

On 1997-2006 Jeep Wranglers (TJ's) the harness that plugs into the back of the control head will burn up. When this happens the inside of the Jeep will smell like burnt rubber and the a/c blower may not work. Below is an outline of the cause of the problem, and how to fix it. Our Tech department spent time to diagnose the problem and figure out a solution.

The three wire connector that connects to the back of the AC/heater control head melts. The common fix for this problem is to cut the factory connector off and replace it with three female crimp-on connectors and plug them into the control head. This temporarily fixes the problems. A short time later you find yourself taking the dash apart again to fix something else in this circuit that has overheated.

We were able to get our hands on a vehicle with this problem so the folks here at Jeepair did a little research to figure out why this is happening. Heat in an electrical circuit is caused by more current flowing in the circuit than the components that make up the circuit are capable of carrying. Now that’s not to say that Jeep did a poor job designing the circuit, something has changed causing more current to flow than the circuit is designed for. What has changed is the blower motor.

On our test vehicle we pulled out the control head and did some temporary wiring around the damaged connector so we could run the blower motor. We measured 22 amps of current flowing on the circuit with the switch set on the high position. We installed a new blower motor and retested. The new blower motor pulled 15 amps of current on the high setting. Our analysis is blower motor failure is root cause of the problem and the only symptom of the failure is an increase in the amount of current required. The overheating damage to the connector is a result of excess current flow caused by the blower motor failure. The connector appears to be at its upper limit of current carrying capacity required by a new motor and once the blower motor begins to fail the connector is the weak link in the circuit.

Our conclusion is you need to replace the blower motor along with repairing the connector.

Can you fix the motor? We took the motor apart and oiled the bearings, cleaned everything up but could not lower the amount of current required by the motor.

All orders are typically shipped within 24-48 hours. UPS and Fed Ex Expedited shipping cutoff is 2pm Eastern Time Monday through Friday.

 

USPS Ground Advantage – Used to be called First Class. USPS orders ship out between 24-48 hours. Typically 3-7 business days once shipped but it’s not a guaranteed service

UPS – Depends on the service selected (UPS Next Day and 2nd Day are guaranteed services)

Fed Ex - Depends on the service selected (Fed Ex Overnight and 2nd Day are guaranteed services)

 

We are located in Ocala, FL. Our address 3611 NW 27th Ave Ocala, FL 34475

We are not a service facility so we do not do any work on actual vehicles. We do repair and make custom a/c lines

We are located in Ocala, FL. If the item you are purchasing is shipping to the state of Florida then you will be charged FL State sales tax. If you are tax exempt and you are purchasing items for resale it is possible to set up your account to TAX exempt. To do this you need to do the following:

  1. Establish an online account
  2. Email us a copy of your tax exempt certificate to sales@myairparts.com including the email address used to set up your account
  3. Wait for us to review and apply your status to your account
  4. We will review your certificate and verify that it is valid, one this is complete we will notify you via email of your status. Typically this is done within 1 business day

     **PLEASE NOTE** IT IS NOT POSSIBLE TO REFUND SALES TAX AFTER A SALES HAS BEEN PROCESSED. REQUESTS FOR EXEMPT WILL APPLY TO FUTURE ORDER AFTER THE ACCOUNT IS APPROVED.

If you are not located in the State of Florida it is not necessary to submit your tax exempt documents. Our website will not charge sales tax if the shipping address is not a Florida address.

Current lead times for some products that are listed out of stock are unpredictable. Send us an email with the SKU for the most up to date lead time and availability. Sales@myairparts.com

Thanks for contacting us. We'll get back to you as soon as possible.

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About Your Return

We do accept returns. All returns are subject to a 30% restocking fee and shipping charges are not refunded.

To return these items the following must be done:

  1. Complete this form to receive a RMA #. No returns will be accepted or processed without a RMA#. Sending in a return without a RMA# will result in forfeiting your refund and item.
  2. Repackage and secure products to ensure no damage during the return shipping.
  3. Do not use the manufactures box as the shipping container.
  4. Include in the box a copy of your packing slip or order confirmation.
    • Ship items back within 30 days of purchase with shipping Prepaid. We do not accept COD or Collect shipments.
    • Please see our Return instructions for more information. Click Here

Enter Questions here. Please be specific and include relevant SKU#'s.

Please send us a message and we'll get back to you as soon as possible.   Hang tight, due to the high volume it might take a couple days.

 

JEEP AIR
3611 NW 27th Ave
Ocala, FL 34475
800-223-7167

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