AC not working properly
07-18-2010, 09:55 PM
#1
3rd Gear Member
Thread Starter
Join Date: Jul 2009
Location: SoCal
Posts: 807
AC not working properly
Today i recharged my AC with R134 and it worked and blew cold air. My dad said i would need a little bit more so i put more in and then my ac stopped working and it started blowing hot air. Also i noticed a clicking noise coming from the passengers engine bay. I couldn't located it. I don't what happen it was working and I added a little bit more refrigerant and it stopped. I haven't converted to thr R134 system. Any ideas?
07-18-2010, 10:36 PM
#2
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
And why did your dad assume you would need a little bit more?? and his area of expertise are in??? in AN A/C system, more is not and I repeat not better, more will not make it cooler better past a point, and overcharged system will not function properly/ will creat to high of pressures and thus a/c will not blow cold air, you may have to exacuate and recharge the system with the proper amount.
07-18-2010, 10:59 PM
#3
2nd Gear Member
Join Date: May 2007
Location: wa
Posts: 330
check the ac relay?
i didn't think you were supposed to mix refrigerants. i'm fairly certain that if the system (i.e. compressor, condensor, evaporator) are made for refrigerant a, it won't function properly with refrigerant b.
but..... since you already charged it:
did you fill it to the right pressure?
i didn't think you were supposed to mix refrigerants. i'm fairly certain that if the system (i.e. compressor, condensor, evaporator) are made for refrigerant a, it won't function properly with refrigerant b.
but..... since you already charged it:
did you fill it to the right pressure?
07-18-2010, 11:28 PM
#4
6th Gear Member
Join Date: Jul 2006
Location: San Diego, CA
Posts: 6,882
Today i recharged my AC with R134 and it worked and blew cold air. My dad said i would need a little bit more so i put more in and then my ac stopped working and it started blowing hot air. Also i noticed a clicking noise coming from the passengers engine bay. I couldn't located it. I don't what happen it was working and I added a little bit more refrigerant and it stopped. I haven't converted to thr R134 system. Any ideas?
07-19-2010, 12:13 AM
#5
3rd Gear Member
Thread Starter
Join Date: Jul 2009
Location: SoCal
Posts: 807
Yeah I don't know what my dad was thinking, I just listened to him. The compressor worked the moment the R-134 was put into the system. But then once I added more refrigerant the compressor stopped working. I know I should convert but I can't afford it and i heard r-134 would just create leaks.
07-19-2010, 12:37 AM
#6
6th Gear Member
Join Date: Jul 2006
Location: San Diego, CA
Posts: 6,882
Yeah I don't know what my dad was thinking, I just listened to him. The compressor worked the moment the R-134 was put into the system. But then once I added more refrigerant the compressor stopped working. I know I should convert but I can't afford it and i heard r-134 would just create leaks.
overcharge will also destroy parts...
give your dad a kick to the nads and never listen to car advice from him ever again
07-19-2010, 06:51 AM
#7
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
if you can't afford to convert it then you'll have to live without a/c, now that you have mixed the two refrigerants, you need to completely evacuate the system and repolace the reciever dryer and possibly the orifice tube/line
Last edited by mjr46; 07-19-2010 at 08:02 PM.
07-19-2010, 11:12 AM
#8
3rd Gear Member
Join Date: Apr 2007
Location: NC
Posts: 590
sorry kid you've boned your system, go get it evacuated to keep from damaging it anymore, look up something called "freeze 12" its a r12 substitute that works really well, you may need to replace your drier also
07-19-2010, 05:10 PM
#9
3rd Gear Member
Thread Starter
Join Date: Jul 2009
Location: SoCal
Posts: 807
why the hell would i do that? he is my dad, just made a mistake. I'm just asking for a solution. And thanks to everyone who gave me an appropriate answer.
07-19-2010, 10:55 PM
#10
1st Gear Member
Join Date: Aug 2008
Location: GA
Posts: 139
look a/c systems differ from one another man. my 88gt is supposed to hold 2lbs of r-134, but i can't put more than just over a pound in the system before there's too much pressure and it starts blowing hot.
yes, it is possible that you fubar'd your whole system. my suggestion since you either have it or don't would be to take off the low pressure side cap and use a screw driver to push down on the valve inside the fitting (not supposed to evacuate this stuff into the atmosphere, oh well) and release all of the r-12/r-134a until no more comes out. then put 1 pound of the r-134a in the system, turn on the car and see if the clutch engages on the compressor. if it blows cold leave it alone, even 1/4lb over in my 88gt was too much. if it doesn't kick in, add it 1/8-1/4lb at a time until the clutch kicks in. DO NOT go over 2lbs...you may be throwing your money away here anyway, all you can do is try man. good luck
yes, it is possible that you fubar'd your whole system. my suggestion since you either have it or don't would be to take off the low pressure side cap and use a screw driver to push down on the valve inside the fitting (not supposed to evacuate this stuff into the atmosphere, oh well) and release all of the r-12/r-134a until no more comes out. then put 1 pound of the r-134a in the system, turn on the car and see if the clutch engages on the compressor. if it blows cold leave it alone, even 1/4lb over in my 88gt was too much. if it doesn't kick in, add it 1/8-1/4lb at a time until the clutch kicks in. DO NOT go over 2lbs...you may be throwing your money away here anyway, all you can do is try man. good luck