1996 GLE with automatic climate control, 200k miles. The a/c blows
cold air as expected when pulling away from a stop. After the car gets
up some speed warm air starts blowing out.

What could the problem be?

On 4/28/09 3:28 PM, in article 53pev4pvmu1pg8dacrnbn46n8ue9g6lntu (AT) 4ax (DOT) com,
"Mike Papa III" <no (AT) please (DOT) dont.invalid> wrote:

Several possibilities.

The AC should go into recirculate mode as soon as there is demand for much
cooling. A vacuum leak could be preventing that from happening. Try
manually setting the recirculate button & listen for the little door to
close in the vicinity of the right footwell.

That AC compressor might be on the way out. They use a constant on,
variable compression, compressor on that car & the symptom sounds about
right.

It could also be an R134 leak.

Get it tested before you throw too much money at it.

On Wed, 29 Apr 2009 08:26:29 -0500, "E. Meyer" <epmeyer50 (AT) msn (DOT) com>
wrote:

Thanks. I'll check the manual recirculate mode. If that is the
problem, what then?

A local tire dealer wanted to replace the compressor for almost $1000.
I went in to have my tires rotated and an A/C check/service. They said
they couldn't perform the A/C service due to the problem so I don't
know if the R134 is low or not. It does seem to cool pretty well when
it does cool. How can I check it the level?

The problem also occurs when at highway speed, it seems to be
intermittent, sometimes working and sometimes not. Mostly though, it
works when speeding up after having to slow down due to traffic. I
guess its time to have a Nissan shop look at it.

On 4/29/09 12:17 PM, in article vn1hv4l0mkaviba24fsj2ch9bh2mlftd8e (AT) 4ax (DOT) com,
"Mike Papa III" <no (AT) please (DOT) dont.invalid> wrote:

Thnn it probably a vacuum leak. Btw. Check it in "econ" mode with the fan
set to low speed so you can hear if anything happens when you push the
button.

You have to put a set of gauges on it to check the R134 charge. If it does
occasionally cool correctly, it could just be a bad switch.

There is a pretty extensive set of tests and diagnostics in the factory
service manual. You can download sections of the manual on-line at
http://www.nicoclub.com/FSM/maxima/

"Mike Papa III" <no (AT) please (DOT) dont.invalid> wrote



Shame on you low life jerks.