A/C took a crap - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

S14Speed997 · 08-04-2005, 11:00 AM

I was leaving work to pick up lunch, drove about 30 ft, and all of a sudden "phhhssshhh", and my a/c turns off...so i turn the knob to #1, nothing. #2, nothing. #3, nothing. I click on #4, and it comes out full blast, and cold.

does anyone have any clue what the heck happened?? its a 97...

thanks - Eric

ibanezxguy · 08-04-2005, 12:03 PM

your switch is gone, the resistors have an open in them.

projectRDM · 08-04-2005, 03:14 PM

More likely though the switch is fine, it's the resistor that's blown.

S14Speed997 · 08-05-2005, 07:23 AM

Quote:

Originally Posted by R240NA

More likely though the switch is fine, it's the resistor that's blown.

The "phhsssssstttt" sound i heard right after it shut off makes me believe something blew....I am in no way familiar with the a/c unit in my car...of course this happens when its 100 degrees down here

RedlineRacer · 08-05-2005, 11:09 AM

yeah, i'd say its the resistor. I had to replace one a few years ago on my car. It was only like $30 from nissan. And it is easy to replace.

*fliprayzin240sx* · 08-06-2005, 03:22 AM

Check your AC lines....ive heard of atleast 5 S14 guys who broke the low pressure AC line rite on the pump *me being one of them*

lilredstiffy · 08-06-2005, 07:17 AM

Sounds like the relay for the a/c fan to me...I don't know if they are set up exactly the same between s13 and s14 though.

projectRDM · 08-06-2005, 03:30 PM

Quote:

Originally Posted by fliprayzin240sx

Check your AC lines....ive heard of atleast 5 S14 guys who broke the low pressure AC line rite on the pump *me being one of them*

But that wouldn't explain the loss of fan speeds, the blower would still work fine if that was the case.

sncs14 · 08-06-2005, 04:49 PM

Quote:

Originally Posted by fliprayzin240sx

Check your AC lines....ive heard of atleast 5 S14 guys who broke the low pressure AC line rite on the pump *me being one of them*

+1 for having had the hose brake on their S14. but it doesn't sound like the hose is the culprit here

Siizzzoooo · 08-06-2005, 05:00 PM

its the resister, my 98 has the same problem

Al_S14 · 08-06-2005, 06:04 PM

Its a Blower Transistor not a resistor if i am not mistaking.

projectRDM · 08-07-2005, 10:36 AM

Quote:

Originally Posted by Al_S14

Its a Blower Transistor not a resistor if i am not mistaking.

No, it is not a transistor. The FSM clearly labels it as a RESISTOR.
It's not a relay either like mentioned above, because there is no blower fan relay in the HVAC system.

Honestly, why do people continue to post pointless and incorrect information to a thread about parts that don't even exist when it's already been answered?

AzNCmB · 08-07-2005, 10:45 AM

where is the resistor located?

aznpoopy · 08-07-2005, 10:58 AM

fan doesn't work, its definitely the resistor.

your a/c is probably still working. here's how to check. turn on the a/c. set the vents to open air and set fan to 4. now drive at 80mph. feel cold air coming out? that means your a/c is working, but your fan simply isn't blowing it out to you.

the resistor everyone is talking about is under the glove compartment behind the fan blower itself. two screws hold it in. it comes in and out almost like a videogame cartridge.

publicenemy137 · 08-07-2005, 01:22 PM

Quote:

Originally Posted by S14Speed997

I was leaving work to pick up lunch, drove about 30 ft, and all of a sudden "phhhssshhh", and my a/c turns off...so i turn the knob to #1, nothing. #2, nothing. #3, nothing. I click on #4, and it comes out full blast, and cold.

does anyone have any clue what the heck happened?? its a 97...

thanks - Eric

I had the exact same problem, i didn't have 1 2 or 3, but 4 worked. It's the blower resistor pack, it's very easy to replace and cheap. I paid $23 I think, you can get it at courtesy nissan. It's in the passenger footwell, just take out two screws to replace. Do a search on here for blower resistor pack, there's a thread that shows you the exact place to replace it.

Once i replaced it, 1 2 and 3 worked again

08-06-2005, 03:22 AM	#6
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Check your AC lines....ive heard of atleast 5 S14 guys who broke the low pressure AC line rite on the pump me being one of them __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

08-06-2005, 05:00 PM	#10
Siizzzoooo Zilvia FREAK! Join Date: Feb 2002 Location: Murfreesboro,TN Posts: 1,355 Trader Rating: (0) Feedback Score: 0 reviews	its the resister, my 98 has the same problem __________________ 2004 Honda S2000 NFR \| 2007 Acura TL CBP \| Project *Coming Soon*

08-04-2005, 11:00 AM	#1
S14Speed997 Zilvia Junkie Join Date: Mar 2003 Location: Tampa, FL Age: 44 Posts: 527 Trader Rating: (0) Feedback Score: 0 reviews	A/C took a crap I was leaving work to pick up lunch, drove about 30 ft, and all of a sudden "phhhssshhh", and my a/c turns off...so i turn the knob to #1, nothing. #2, nothing. #3, nothing. I click on #4, and it comes out full blast, and cold. does anyone have any clue what the heck happened?? its a 97... thanks - Eric __________________ I love signatures that aren't over 400x200!

08-04-2005, 12:03 PM	#2
ibanezxguy Zilvia Member Join Date: May 2002 Location: Augusta,Ga Posts: 176 Trader Rating: (0) Feedback Score: 0 reviews	your switch is gone, the resistors have an open in them.

08-04-2005, 03:14 PM	#3
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 50 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	More likely though the switch is fine, it's the resistor that's blown. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

08-05-2005, 11:09 AM	#5
RedlineRacer Zilvia FREAK! Join Date: Sep 2002 Location: Clemson, South Carolina Age: 39 Posts: 1,054 Trader Rating: (0) Feedback Score: 0 reviews	yeah, i'd say its the resistor. I had to replace one a few years ago on my car. It was only like $30 from nissan. And it is easy to replace.

08-06-2005, 07:17 AM	#7
lilredstiffy Zilvia Addict Join Date: Nov 2001 Location: louisiana Posts: 618 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like the relay for the a/c fan to me...I don't know if they are set up exactly the same between s13 and s14 though.

08-06-2005, 06:04 PM	#11
Al_S14 BANNED Join Date: Jan 2005 Location: Chesapeake VA Age: 39 Posts: 405 Trader Rating: (0) Feedback Score: 0 reviews	Its a Blower Transistor not a resistor if i am not mistaking.

08-07-2005, 10:45 AM	#13
AzNCmB Zilvia FREAK! Join Date: Jan 2003 Location: NOLA Age: 40 Posts: 1,144 Trader Rating: (2) Feedback Score: 2 reviews	where is the resistor located?

08-07-2005, 10:58 AM	#14
aznpoopy Post Whore! Join Date: Mar 2003 Location: New Jersey Age: 43 Posts: 5,013 Trader Rating: (1) Feedback Score: 1 reviews	fan doesn't work, its definitely the resistor. your a/c is probably still working. here's how to check. turn on the a/c. set the vents to open air and set fan to 4. now drive at 80mph. feel cold air coming out? that means your a/c is working, but your fan simply isn't blowing it out to you. the resistor everyone is talking about is under the glove compartment behind the fan blower itself. two screws hold it in. it comes in and out almost like a videogame cartridge.