uhhhhh.......cond. fans running?...whats pressures at failure
mode?......kjun

From all that you said, it appears that the A/C system might be low on
refrigerant and in need of service. At least that is all I could determine
from the information you provided.

The short on/off cycle time of the compressor makes me think you are a
bit low on refrigerant.  The system uses a pressure switch to turn the
compressor off and on based on the system pressures. When you get low
on refrigerant the compressor cuts on and pulls the pressure down
which trips the switch and turns off the compressor.  Once the
compressor is off the pressure rises and trips the switch turning the
compressor back and the evil circle repeats over and over again.

It is possible to get a can of refrigerant from you friendly
neighborhood auto parts store with a gauge built in so you can try to
top it off.  The downside to this is that you are only seeing half the
picture as you can not see the high side pressure and can very very
easily cost yourself a thousand dollar repair with that $15 can.  Were
it mine and I had minimal knowledge of the system I would take it to a
trusted shop and pay the $50 to have it charged properly.

                  Steve B.

if the service engine soon light is on  have it check it maybe because
of the ac believe it or not you could have trouble with the orfice tube

my mistake on the orfice tube. my point was a a/c condition could store
a dtc in the pcm

jeffcoslacker Wrote:

Right on there jeffcoslacker
You got it right.
And sometimes with freon just a little low it will be colder.

But before anybody goes out and gets one.

Wal Mart DEATH KITS

You cannot properly and safely recharge an air condition system with
them.

The one side stop and go gauge does not tell you what your system is
doing or is over charged or undercharged.
A overcharged or malfunction air condition system can reach over 500
lbs of pressure.
Enough to blow up that can or system and freeze you at first and the
burn you or blind you and if any propane /butane in there blow and
light you up.

The stop leak crap and who knows what kind of oil in the kits there
will stop your system for sure.
Just like pouring super glue in it.
And some kits even contain freon with a butane mixer.
Good for a big blast.

If you are going to do it do it right and safe.
Here is what you need to start with.
http://tinyurl.com/jt94c

In the older days you could just throw in a can and go.
But over the years just adding freon is getting harder to do.
Newer systems have to have the correct amount of freon down to the
ounces.
Most will need pumped down and vacuumed down and the right and amount
of oil and a set amount freon charge installed to get the air to cool
right and the system to last.
If an air condition is low there is usually a leak that needs fixed and
also a lose of lubricating oil from system.
Also air and moisture enters a low system
If you are going to try to do it get the proper type air condition
gauge set with the low and high side gauges.
Hook up the gauges and get a reading with compressor running at idle
and at 2000 rpm on the high and low side.
Post back pressure reading and we can help you.
MT