A/C SYSTEM HAS BEEN E-VAC AND RECHARED WITH R-134 FREON. SYSTEM BLOWS COLD WHEN OUTSIDE AIR TEMP IS COOL, WHEN OUTSIDE AIR TEMP GETS HOT, SYSTEM STOP BLOWING COLD.
Your auxillary fan is not working. this fan is responsible for cooling the freon that is being circulated in your cooling system... check if there are any loose wires in front of the engine bay.
the auxillary fan is located right beside your radiator fan.
SOURCE: Air conditioning does not blow cold air all the time
your high pressure switch is faulty. the part is about 50$
SOURCE: 2000 Nissan xterra
I had the same problem as well...don't know the name of the part, but it was in the glove box and it was really cheap...works great now...i did it myself when my husband was at work...so you know it is easy to change!!! Good luck...
SOURCE: Nissan Altima no cool air blowing or hot air blowing
Hi!
It
appears we have an Air lock scenario and you will need to perform a
system Bleed.
Park
the vehicle on level ground, when cold remove coolant filler cap,
start engine and leave to idle, turn heater on full and blower to
max. When engine reaches operating temperature watch and listen near
coolant filler, keep clear as gurgling and hopefully a boil over
should occur. Top up with very warm coolant and wait as it may do it
again.
Check
for heat inside vehicle if warm replace coolant cap but keep an eye
on temperature gauge as the ~Air lock may have moved on from heater
matrix/core so proceedure needs to be carried out again from COLD.
Please
press the Blue button to appraise my FREE Efforts, Thank You!
Paul
'W' U.K
SOURCE: nissan 2000 ac hot when idle
the a/c condenser has a fan in front ( there is actually 2 fans if you sit on the car it will be fan on right side ) if this fan does not
come on immediately when you are parked and engine in idle
there is a problem with power to it, or motor failure. If you drive it
on the highway and a/c operates fine that's because air is circulating though condenser (thats what the fan is supposed to do at idle or slow traffic)
SOURCE: Front air condition does not blow cold. Rear air condition does
sounds like a damper door in the front not working properly, these are actuated by the front temp control, the door is operated by either a manual cable, and electric actuator, or vacuum. I hope this helps you zero in on your problem. Merry Christmas
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