Air Conditioning does not work

Tiny
HOCSINH
  • MEMBER
  • 2001 NISSAN XTERRA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 87,000 MILES
I have my car AC service for like 6 months ago. My AC always blows out cold air whether or not I turn on my AC. But now I did not get the cool/cold air, but only warm air when AC is on or off

Any advice appreciated.
Tuesday, May 27th, 2008 AT 12:25 PM

31 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi hocsinh,

Without AC on how to get cool air? I am a confused.

Check for compressor operations with AC on.

Check positioning of venting system.

Check heater control cable adjustment. This guide will help

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down this guide and report back.
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Monday, June 9th, 2008 AT 11:11 AM
Tiny
HOCSINH
  • MEMBER
  • 5 POSTS
The AC is on

the compressor is running when I checked

the air is warm whether or not the vent is on or off

i can hear some kind of noise from the passenger's side. Is that meant there is a leak?

What else should I check?

Thanks.
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Thursday, June 12th, 2008 AT 4:30 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi hocsinh,

If there is noise from the passenger side, could be the expansion valve.

Get a pressure test on the system and let us know the readings.
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Friday, June 13th, 2008 AT 8:20 AM
Tiny
HOCSINH
  • MEMBER
  • 5 POSTS
Thanks a lot for your replies, KHLow2008

Finally, I brought my car to the auto shop dealer for the AC check and there is a leak from the high pressure pipe/tube as they told me

how easy and how much it costs to replace the pipe/tube estimately?

Thanks.
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Saturday, June 14th, 2008 AT 1:02 PM
Tiny
HOCSINH
  • MEMBER
  • 5 POSTS
Another mechanic checked and told me the leak is coming from the AC evaporator and it would cost $690 to fix it.

I am not sure who is to believe?

Any suggestion?

Thanks!
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Saturday, June 14th, 2008 AT 2:26 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi hocsinh,

Sorry I can't help you about the price. But the pipe repair should cost less.

Since 2 person have told you 2 different possibilities, you might need a 3rd opinion.
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Saturday, June 14th, 2008 AT 3:47 PM
Tiny
HOCSINH
  • MEMBER
  • 5 POSTS
Thank you, KHLow2008
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Saturday, June 14th, 2008 AT 4:29 PM
Tiny
DANNY BLACKBURN
  • MEMBER
  • 11 POSTS
Replace the high pressure line yourself. Buy a new line or go to junk yard and get one and charge the system up before spending lots of money.
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Thursday, June 6th, 2019 AT 7:24 AM
Tiny
ROSEMEADE908
  • MEMBER
  • 2 POSTS
  • 2000 NISSAN XTERRA
My air conditioning just stopped working, when I press the AC nothing happens, before I could immediately hear the compressor turn on. I could not find a fuse in the under dash fuse box, is there another fuse box? Is the AC not working?
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Check the engine compartment also is the system fully charged?

This guide should help

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down this guide and report back.
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
ROSEMEADE908
  • MEMBER
  • 2 POSTS
Engine compartment, is where another fuse box would be located?

Also even if the system needed charging would the compressor still turn on but just blow warm air?
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Box under hood probably near batt.
System has low pressure cutout switch so comp. Will not run when system is low to prevent damage to comp.
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
TLANE77785
  • MEMBER
  • 1 POST
  • 2001 NISSAN XTERRA
Air Conditioning problem
2001 Nissan Xterra Automatic

My air conditioning smells like an odor! Where is it located on the car so I can get the filter cleaned. It smells like body odor! I really need to change this out this smell makes me want to vomit.
Thank you.
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Your vehicle does not have a filter. Most likely mold in evaporator or a little critter got in intake vent. See diagram take motor out spray Febreeze and water bleach solution.
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
ALX2979
  • MEMBER
  • 3 POSTS
  • 2000 NISSAN XTERRA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 113,000 MILES
Hello I have my xterra, my ac is not working I just put 134a+ refrigerant just install new thermal control amplifier new pressure switch my ac light in my dash comes on compressor is good can you guys help me please thank you
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be still low in freon-Do you hear the clutch engage the compressor
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+1
Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
ALX2979
  • MEMBER
  • 3 POSTS
This is what I did In fuse box I found the compressor fuse I brige from the batery + to the wire the goes to the compressor Works and I can get cool air but when I put the fuse back stops working like I say the ligh in the dash it's on the pipes on gets cool and the other one gets hot it's that normal? I change the bottom in the dash to any idea
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the AC clutch relay and the pressue switch
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
ALX2979
  • MEMBER
  • 3 POSTS
The a/c clutch relay it's new and the presure swich is new and I getting power
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Monday, September 16th, 2019 AT 9:47 AM (Merged)
Tiny
DANNY BLACKBURN
  • MEMBER
  • 11 POSTS
I have a 2000 Xterra and air just quit working. Compressor wouldn't come on and light was coming on. The 4 wire plug on top of bottle on pass side, I pulled it out and put back in an tried to get plug out on top of compressor but couldnt get it come out. I tried it again and it started working. Check all your plugs, one of them might not be getting connection.
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Monday, September 16th, 2019 AT 9:47 AM (Merged)

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