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2010 Murano Not cold, maybe Drier?
Posted: Sat May 27, 2023 11:51 am
by atrdriver
I have a 2010 Nissan Murano that I had to pull the AC compressor a few times in order to replace the alternator. The first two times after an evac and recharge the AC worked great . After the third time it's not blowing cold (Yes I had to put 3 alternators in this thing). Gauges say 200/35 when compressor is running, which I think tells me it is full of R-134A. I'm thinking it could be the drier, but it's really a pain to get to so I kind of want to confirm that before I tear it apart. Is that what it sounds like?
Thanks in advance
Re: 2010 Murano Not cold, maybe Drier?
Posted: Sat May 27, 2023 7:42 pm
by Tim
Reclaim the refrigerant and add back the proper amount to know you have the correct amounts for further analysis.
Refrigerant
Type .................... HFC-134a (R-134a)
Capacities
Refrigerant
Capacity .................... 0.60 kg (1.32 lb)
Re: 2010 Murano Not cold, maybe Drier?
Posted: Sun May 28, 2023 10:42 am
by tbirdtbird
What Tim is saying is that pressures alone do not give a true indication of proper charge.
And any pressure readings s/b taken at 1500RPM, max fan, max cool, windows open, 80F day or hotter. ie a real load test. And the test conditions should be specified in your post
Re: 2010 Murano Not cold, maybe Drier?
Posted: Sun May 28, 2023 10:54 am
by atrdriver
I will refill it with 1.32 lbs tomorrow and let you know what happens. Thanks for the replies.
Re: 2010 Murano Not cold, maybe Drier?
Posted: Mon May 29, 2023 12:30 pm
by atrdriver
Thanks guys. Apparently I didn't have quite enough R-134A in it. After a vacuum and refill weighing the cans I have a 38 degree drop from ambient, and she is very happy with that. I appreciate the assistance !!
Thanks again
Re: 2010 Murano Not cold, maybe Drier?
Posted: Tue May 30, 2023 8:24 am
by tbirdtbird
Glad it worked out, nice work
Re: 2010 Murano Not cold, maybe Drier?
Posted: Thu Jun 01, 2023 7:18 am
by Cusser
I'm back in !!!
I guess I'm a little smarter than I was yesterday, and this morning I Googled how to set up an "exception" to the site URL in Avast, so now I can get in to the site !!! SUCCESS !!!
Anyway, my comment is that one will never get a full 12 oz. from a refrigerant can; I figure 10 to 10.5 oz. actually get into the system. I have no idea how much refrigerant ends up contained in the hoses either.
Re: 2010 Murano Not cold, maybe Drier?
Posted: Thu Jun 01, 2023 2:20 pm
by tbirdtbird
Cusser, we wondered where you went! Welcome back
BTW the hi side hose holds between 1.5-2 oz
Re: 2010 Murano Not cold, maybe Drier?
Posted: Thu Jun 01, 2023 2:37 pm
by Tim
Hope John is all right. I have not seen him lately—as well as GM Tech, Brad, Detroit, and others.
Re: 2010 Murano Not cold, maybe Drier?
Posted: Fri Jun 02, 2023 7:53 am
by tbirdtbird
I was thinking the same.
I suspect John took a week off due to Mem Day weekend