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A good working air
conditioner is a must during
the Summer, especially when the humidity is high.
The most common cause of the air conditioner
to stop working is the refrigerant is low.
This could be caused from a leak somewhere in
If your car is older than 1995, then you need
to have your
refrigerant checked out by a licensed professional
knows how to dispose of or recycle R-12.
In some states, it's illegal to refill a leaky
system with R-12.
The good news is, even the older cars can be
easily retrofitted to
use the newer, safer type of refrigerant
The air conditioning system is filled with high
and operates at or over 200 psi, which could be
Plus, parts of the A.C. system can reach well
over 150 degrees.
Even if you are a Do-it-Yourselfer, we recommend
that you have
your mechanic service and recharge your A.C.
If it is low on refrigerant, however, you can
recharge it using
a recharge kit you can purchase at your local
auto parts store.
If you service your A.C. yourself, be sure to
Always wear eye protection when
servicing air conditioning systems
or handling refrigerant.
protective Chemical Resistant gloves to prevent PAG
lubricant contact with the skin.
PAG oil, or Polyalkylene Glycol, is a synthetic
oil specifically designed
for automotive air conditioner compressors.
It is used in R-134a air conditioning systems
to lubricate the
To help avoid skin contact, mineral oil should
be used to coat o-rings
and seals prior to installation.
PAG lubricants can also cause damage to paint,
plastic parts, engine
drive belts and coolant hoses.
Don't allow refrigerants to come in contact
with open flames and high
Avoid breathing refrigerant and lubricant vapor
Exposure may irritate eyes, nose and throat.
Never add anything but the recommended
the A.C. system.
If you experience any of these problems, check with
your mechanic for professional advice or service.
The A.C. doesn't cool the car to a comfortable
The dash controls don't work when operated.
When the fan/blower works, it's louder than
The blower doesn't work when set in A.C. mode.
There's loud noises when the heat or A.C. is
Visible signs of Refrigerant oil stain by the
pipes or fittings.
The car runs hot or overheats when A.C. is on.
The engine cooling fan quickly cycles on and
The heater, top and side vents, or defroster
Blocked air flow through the Condenser and Radiator.
The windows fog up when the defroster is turned
The car stalls or idles roughly when the A.C.
is turned on.
There's water on the car's floor.
your A.C. -
Turn the fan on high with the coldest settings
once a week for
about 10 minutes.
Doing this will help maintain the gas pressure and keep the
compressor working properly and the seals from failing.
Try to do it throughout the year, even during the Winter,
to keep the air conditioner working.
Running the defroster is also important to prevent mildew
other odors and clear away any excess moisture in the
Run the defroster for about 10 minutes every week.
Check the exterior grills under the windshield.
Look for any leaves and other debris.
Taking the time to clear these things away will prevent them
getting sucked into the air conditioning system and clogging
Also, open the hood and check the condenser.
Use a hose to clean out debris that could clog the condenser
make it less effective.
Don't Pre-Cool your car.
If the interior is really hot, turn the fan on high when you
and open just the rear windows for about 10 to 20 seconds.
This forces all the hot air out of the car.
Your car air conditioning works better when you're driving,
the faster the engine turns, the faster the A.C. compressor
which lets the system cool more effectively.
Have your mechanic check your A.C. system regularly and have
serviced about every 2-3 yrs.
The best time is in the Spring before it gets hot.
Never leave a child or a pet in a parked car on a hot
even for a minute!
While we attempt to insure these tips
and information is complete and
accurate, these tips are
recommendation to help save you time,
money and to stay safe on the road.
Check with your mechanic for
professional advice or service
before attempting to perform
any work you are not qualified