a/c help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JAKracing · 08-08-2009, 01:12 PM

FYI: 92 240sx fastback/ stock KA24DE
since i got the car the a/c hasn't worked. so today i figured i would try to recharge it. i went and got a retro fit kit. as soon as i hooked up the gauge, it was in the red warning area. so i let out the pressure and recharged it.

it would only recharge a little at the time. so i put two cans in it and still no cold are. the a/c button light is on, the car idles up when i cut the a/c on, but still no cold are. prolly something else that is more expensive.

could someone please shed some light on this subject. i searched and can't really find nothing, so i come up here hoping to find answers......

thanks in advance,
jason

The Chad · 08-08-2009, 01:27 PM

When you charged the A/C did you have your engine running and the A/C on full Blast? I didn't read the directions the 1st time i charged my A/C and tried it with the engine off. The gauge read the High pressure (as it wasn't circulating). WOrks fine now

If that doesn't work you have to start replacing parts/looking for leaks.

JAKracing · 08-08-2009, 03:40 PM

yeah i had the car running and all.....if it had a leak would it still hold pressure?

Sileighty_85 · 08-08-2009, 06:07 PM

expansion valve is probably stuck open

happened to mine

The Chad · 08-08-2009, 07:50 PM

yup +1 for expansion valve. Located behind the glove box in the breather case. you need to undo the 2 a/c lines on the firewall side 1st and the box comes out. The Valve wrapped in some gummy tape stuff. I just did mine too in my Nissan 240. My Volvo 240 only needed a recharge

.

JAKracing · 08-08-2009, 08:37 PM

alright so what do i have to do to it

The Chad · 08-08-2009, 10:23 PM

Replace it. It's like $35? I think. Then PM me for a step by step. I just did mine 3 days ago so it's still fresh in my mind.
*****You will have to purge your system before you undo the lines and completely refill it with R134 after*****

I did my A/C Dryer while I had my lines off. Another Cheap part. The dryer is super easy to replace though.

zr0 · 09-08-2009, 03:31 PM

i just bought a fixer up 90 240 and the charge is in the green.. but the light isnt coming on over the AC panel. ideas?

The Chad · 09-08-2009, 03:41 PM

check wiring all the way back behind the button. And check the compressor to be working and wiring.

zr0 · 09-08-2009, 04:25 PM

yeah i just pulled the panel out and everything is connected.. the compressor isn't coming on when i have someone push the ac button.. nor is the light.. yet the recirculation light does work

The Chad · 09-10-2009, 05:53 PM

hmmmm. might just be a coincidence. May be a bad bulb in the button and a bad compressor or wiring into the compressor. Check the connector that goes into the compressor with a volt meter with the button pressed and with it off.

The Chad · 09-10-2009, 05:55 PM

Or shit you're only like 6 hrs away. Just give me your car and I'll give you and electric scooter? lol

zr0 · 09-11-2009, 06:28 PM

lol yeah not to far. might be cooler riding on a scooter ha.

The Chad · 09-16-2009, 10:23 AM

Haha.
A/C coming along OK? Any Progress?

zr0 · 09-16-2009, 10:51 AM

i haven't done much this week.. going to go buy a OHM meter so i can see if i'm getting any power to the compressor

The Chad · 09-16-2009, 02:53 PM

good idea. it's a good tool to have.

dennydizzo · 09-17-2009, 03:41 AM

hey dont the 89-93 240sx come stock with r12 refrigerant unless it was retrofitted and conveted to r134??

The Chad · 09-17-2009, 03:02 PM

I believe so...My 91 Volvo 240 had to be retro-fitted for the r134. Some small shops still have R12 though, gotta know someone though

.

08-08-2009, 01:12 PM	#1
JAKracing Join Date: Mar 2009 Location: rocky mt, NC Age: 39 Posts: 42 Trader Rating: (0) Feedback Score: 0 reviews	a/c help FYI: 92 240sx fastback/ stock KA24DE since i got the car the a/c hasn't worked. so today i figured i would try to recharge it. i went and got a retro fit kit. as soon as i hooked up the gauge, it was in the red warning area. so i let out the pressure and recharged it. it would only recharge a little at the time. so i put two cans in it and still no cold are. the a/c button light is on, the car idles up when i cut the a/c on, but still no cold are. prolly something else that is more expensive. could someone please shed some light on this subject. i searched and can't really find nothing, so i come up here hoping to find answers...... thanks in advance, jason

08-08-2009, 06:07 PM	#4
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	expansion valve is probably stuck open happened to mine __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

09-08-2009, 03:31 PM	#8
zr0 Join Date: Jul 2009 Location: charleston sc Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	same problem but no light on ac i just bought a fixer up 90 240 and the charge is in the green.. but the light isnt coming on over the AC panel. ideas?

09-17-2009, 03:41 AM	#17
dennydizzo Zilvia Member Join Date: Jan 2009 Location: SUNNY CA!! Age: 33 Posts: 204 Trader Rating: (4) Feedback Score: 4 reviews	hey dont the 89-93 240sx come stock with r12 refrigerant unless it was retrofitted and conveted to r134?? __________________ LOVIN ME TOOFODEE!!

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08-08-2009, 01:27 PM	#2
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	When you charged the A/C did you have your engine running and the A/C on full Blast? I didn't read the directions the 1st time i charged my A/C and tried it with the engine off. The gauge read the High pressure (as it wasn't circulating). WOrks fine now If that doesn't work you have to start replacing parts/looking for leaks.

08-08-2009, 03:40 PM	#3
JAKracing Join Date: Mar 2009 Location: rocky mt, NC Age: 39 Posts: 42 Trader Rating: (0) Feedback Score: 0 reviews	yeah i had the car running and all.....if it had a leak would it still hold pressure?

08-08-2009, 07:50 PM	#5
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	yup +1 for expansion valve. Located behind the glove box in the breather case. you need to undo the 2 a/c lines on the firewall side 1st and the box comes out. The Valve wrapped in some gummy tape stuff. I just did mine too in my Nissan 240. My Volvo 240 only needed a recharge .

08-08-2009, 08:37 PM	#6
JAKracing Join Date: Mar 2009 Location: rocky mt, NC Age: 39 Posts: 42 Trader Rating: (0) Feedback Score: 0 reviews	alright so what do i have to do to it

08-08-2009, 10:23 PM	#7
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	Replace it. It's like $35? I think. Then PM me for a step by step. I just did mine 3 days ago so it's still fresh in my mind. ***You will have to purge your system before you undo the lines and completely refill it with R134 after*** I did my A/C Dryer while I had my lines off. Another Cheap part. The dryer is super easy to replace though.

09-08-2009, 03:41 PM	#9
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	check wiring all the way back behind the button. And check the compressor to be working and wiring.

09-08-2009, 04:25 PM	#10
zr0 Join Date: Jul 2009 Location: charleston sc Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	yeah i just pulled the panel out and everything is connected.. the compressor isn't coming on when i have someone push the ac button.. nor is the light.. yet the recirculation light does work

09-10-2009, 05:53 PM	#11
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	hmmmm. might just be a coincidence. May be a bad bulb in the button and a bad compressor or wiring into the compressor. Check the connector that goes into the compressor with a volt meter with the button pressed and with it off.

09-10-2009, 05:55 PM	#12
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	Or shit you're only like 6 hrs away. Just give me your car and I'll give you and electric scooter? lol

09-11-2009, 06:28 PM	#13
zr0 Join Date: Jul 2009 Location: charleston sc Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	lol yeah not to far. might be cooler riding on a scooter ha.

09-16-2009, 10:23 AM	#14
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	Haha. A/C coming along OK? Any Progress?

09-16-2009, 10:51 AM	#15
zr0 Join Date: Jul 2009 Location: charleston sc Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	i haven't done much this week.. going to go buy a OHM meter so i can see if i'm getting any power to the compressor

09-16-2009, 02:53 PM	#16
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	good idea. it's a good tool to have.

09-17-2009, 03:02 PM	#18
The Chad Zilvia Addict Join Date: Feb 2007 Location: Richmond, VA Age: 40 Posts: 943 Trader Rating: (0) Feedback Score: 0 reviews	I believe so...My 91 Volvo 240 had to be retro-fitted for the r134. Some small shops still have R12 though, gotta know someone though .