A/C Quit blowing cold

ddeanda2 · #1 09-03-2007, 11:11 AM

I have a serious question, my a/c just quit blowing any cold last wednesday and i live in phoenix, well actually avondale, AZ. where its been routinely in the triple digits. I had it checked for freon and pressure and they were both fine, made sure my temperature was at 60 degrees and everything else i could think to test and check and found nothing out of the ordinary. Has anyone had this problem or know of a simple diy before i have to take it to the dealership and get "raked over the coals"?

SuperGreg · #2 09-03-2007, 12:48 PM

Quote:

Originally Posted by ddeanda2

I have a serious question, my a/c just quit blowing any cold last wednesday and i live in phoenix, well actually avondale, AZ. where its been routinely in the triple digits. I had it checked for freon and pressure and they were both fine, made sure my temperature was at 60 degrees and everything else i could think to test and check and found nothing out of the ordinary. Has anyone had this problem or know of a simple diy before i have to take it to the dealership and get "raked over the coals"?

Most likely, you need to replace the Final Stage Resistor... I have had mine replaced twice. The last time my a/c went out, they had to replace the "core", which entailed removing the entire dash. That repair cost ~ $2,900.00 (Had extended Warranty). Try the FSR first !

ddeanda2 · #3 09-03-2007, 01:09 PM

Thanks, now my next question is i thought that just wouldnt let you control your ac/heater temps. not keep it from blowing cold. if it may be it then where would i get one and go about replacing it?

Zulu95 · #4 09-03-2007, 01:16 PM

If the blower has quit then change out the FSR. You can get them on e-bay or at the dealer or some of the on-line parts suppliers. There is a DIY article on the home page.
If it blows but not cold and the pressures/freon level is OK then check the fan in front of the radiator works. If not you may need a relay or fan.

SuperGreg · #5 09-03-2007, 03:31 PM

Quote:

Originally Posted by Zulu95

If the blower has quit then change out the FSR. You can get them on e-bay or at the dealer or some of the on-line parts suppliers. There is a DIY article on the home page.
If it blows but not cold and the pressures/freon level is OK then check the fan in front of the radiator works. If not you may need a relay or fan.

FYI, one time when mine blew warm air but fan speeds were fine, replacing the FSR did the trick.

ddeanda2 · #6 09-03-2007, 01:44 PM

Yes it blows but not cold and i had the pressure/freon checked and they were both good, where would the relay be at to check after the fan?

Zulu95 · #7 09-03-2007, 02:03 PM

Behind the radiator as shown.

taknight4 · #8 09-04-2007, 09:07 PM

Im having a few probs w my 2001 4.4i too. Fan quit completely, was the resistor...replaced and now blows again. It also blows warm sometimes at idle...was told I had a bad auxiliary fan, which I believe is the one in front of the radiator. About 800 to replace, trying to decide if I should try replacing it myself. I will try looking at the relay for the fan first...maybe that's the prob.