Okay so my air conditioning blows air, but it's whatever air is outside (temperature-wise). Same with my heater. In other words, I have a basic fan - no heat when I need it, no cold when I need it. I tried recharging the R134a, but it didn't seem to do the trick, plus I think I smelled the R134a coming from under the hood after (leak maybe?) so I'm thinking of just replacing the whole A/C unit.

I found a place that will sell me a box of this:

- ac compressor
- condensor
- evaporator
- A/C belt
- electrical fan
- complete hoses and piping
- A/C switch
- step-by-step install instructions.

All of it is OEM by Nissan. Is that all I need? I'm thinking, to eliminate all guesswork and/or keep from having a weak link in my a/c system, that I should approach this as if I didn't have a/c in the first place.

So, pretending that my S14 doesn't have a/c, can anyone tell me if all I need is in that box I described? I've never really worked with anything a/c related until now, and damnit this summer is killing me

 

Dude, just open all the windows and you're set. That's what I do. And I actually have an A/C that blows cold air. Lol, my power folding mirrors might not fold, but hell, my A/C does. I just don't use it because it uses more gas.

 

actually the A/c doesn't use any more gas. what you ADD in drag to your car by opening the windows actually uses far more gas than A/c. (which also prevents heat stroke!!).
if the a/c and heat both aren't engauging. it could be electrical, so you might want to get a new a/c/ heat control unit to go with.

 

Are you referring to the actual controls in the center console with the fan switch, etc.? I had to switch that with what was known at the time as a good unit because the original one wasn't working at all... might be a clue. Hmmm..

 

there's a fuse in there. the fan is controled by a cord, but everything else is electronics, if you pull it out & flip it over you can check that fuse.... or lay out another $30 for one on ebay if you think it's the control unit. i'm sure more ppl on here have additional ideas.

 

off to check that fuse right now!

 

Ok, so you're telling me it doesn't use more gas. Here's the way I see it. If i turn the fan on, A/C, or heater, the revs in neutral rise from 700 to about 1100. The high the revs, the more gas is being consumed right? Therefore you're using up more gas. That's how I thought it about. Am I wrong in my thinking. And btw, I'm very happy just having the windows down. I enjoy hot weather. I just don't like the cold, which is when I go ghetto and bring blankets with me, lol.

 

Ok I dont see what fuse you're talking about other than under the hood

 

it's not under the hood. you pull out the a/c control unit & flip it over. it's in the back.
and artic, if you open the windows you're creating this thing called Drag. your car has to push harder to make it go foreward. I've done the same trip between houston & austin w/ the windows down, and w/ the a/c on, my mileage was /much/ better over the distance w/ the a/c on because of the lack of 2 'holes' in the side of my car that create so much drag.
However, when you're not cruising *ahem* "70" mph.. i am wrong, the a/c off is better.

 

ok, dont forget I have an s14... and if you're talking about the actual a/c controller in the center console, there's no fuse in the back - I even took the small plastic panel off, and no fuse

 

Looks like the kit includes all that you need. You may need one or two special tools to disconnect the lines, but they should be pretty easy to acquire.

When you're done you may want to have an A/C shop do the final stuff. To test it, you'll need to pressurize the system with air. Then you need to vacuum test the system. If it passes the tests, it can be charged. The instructions will probably tell you to put a certain amount of oil in the compressor before installing it. The remaining required amount should be put in the accumulator or liquid tank, depending upon what the instructions refer to it as.

Good luck

 

Before you go and replace all of this, you should check the blower door motors. It may not be closing and opening the proper doors for A/C or heat.

 

Could you point me as to where these doors are? I'm hoping it's something small, as I would prefer not to replace the whole system

 

You need to find out the common cause of your no heat/no cold problem first....If your AC was broke you should still have heat, unless there something in common thats affecting both functions. You know the blower turns, so thats working. If you are getting a good deal on that kit, go for it. It will be nice if you can inspect the major items and try to replace the bad ones. Maybe you dont need them all, and you can always ebay the left overs and get some money for other goodies......

And it will be less work, it can be time consuming to replace all AC components in your car.....

Good luck

 

The unit with the vent doors in it is located behind the center of the dash. The Cooling and Heating units are behind the dash on the passenger side.

You need to gain access to that unit, hook the A/C controls back in, and test all the doors for functionality. I got this info from the PDF format FSM that's floating around on this forum somewhere.