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Chevrolet Blazer Heating Ventilation and Air Conditioning

97 messages,  Last post on Sep 19, 2008 at 7:10 AM

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What is this discussion about? Chevrolet, Heating / Cooling, SUV

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#88 of 97 Re: Air Conditioning Blowing Hot Air [jlflemmons] by mphreha Jun 27, 2008 (10:58 am)
Replying to: jlflemmons (Jun 27, 2008 5:58 am) I'm pretty sure that the freon charge is correct. We tested the pressure before and it was already in the blue/acceptable level, so we were not able to add much more. The hot air feels more like heater heat and not ambient heat.
#89 of 97 Re: Air Conditioning Blowing Hot Air [mphreha] by bluetwinbill Jun 27, 2008 (2:14 pm)
Replying to: mphreha (Jun 26, 2008 12:34 pm) Soounds like the AC clutch not kicking in as I had same problem and neighbor shows me how to "fix". The is on the right when looking at the engine, it looks like the underside of a oil filter. Anyway it is round and is supposed to spin, when ac kicks on. I guess its an electromagnetic thing which i know nothing about. Anyway just touch it with your finger or a stick real quick and it takes off spinning, at least mine did. So min works like 75% of the time. Every once in a while have to use the stick to get it going. Can you tell I'm not a mechanic? Wonder how much will cost to fix right.
#90 of 97 Re: Air Conditioning Blowing Hot Air [mphreha] by jimmy99slt Jul 03, 2008 (1:26 am)
Replying to: mphreha (Jun 26, 2008 12:34 pm) If your compressor is spinning and you have the automatic climate control, see air blend motor/actuator. If you don't find it in the blazer side check gmc jimmy. Its hidden behind the glovebox up and to the left. Did you ever hear a funny clicking from over there?
#92 of 97 Air conditioning by antique_maggie Jul 07, 2008 (11:30 am)
My hubby (the autoparts salesman) says our '92 will need a new condensor, hoses (and some other word I can't think of) to get the air blowing cold again (apparently it's gone beyond just the r-12 or whatever it takes). Anyone know what this might cost?
#93 of 97 Grrr. I hate R134a by jlflemmons Jul 11, 2008 (8:50 am)
'99 Blazer 4dr, 2wd. Great little suv, minimal problems, bought it for my son. but whoever designed the AC system should be flogged.   It has a very, VERY slow leak. Actually, it had two leaks. We found one and repaired it, the other is yet to be found. My complaint is that the little beast only holds about 32 ounces of R134a freon when fully charged, but if it loses just 4-6 ounces, the compressor starts short cycling and cooling performance drops in half.   So, every six months or so I have to buy a $7 can of R134A, use 1/2 or less of it, and head on down the road. Not losing any oil, dye doesn't show up anywhere, so we are talking TINY leak, somewhere.   You could throw major bucks at a problem like this, and never fix it.
#95 of 97 1990 Chevy Blazer HVAC Controls by burdink Sep 09, 2008 (9:06 pm)
I have a little problem with my Blazers AC controls. Changing the AC settings between Max, Normal, and Bi-level does nothing as far as changing air flow. No matter which setting it try, the air only blows from the floor and dash vents. Any ideas?
#97 of 97 Heater Core 1999 Blazer by jrofne Sep 19, 2008 (7:10 am)
I am racking myself trying to finish removing the heater core. I have the entire dash out and removed three bolts under the hood. Are there more? (evidently) How do I get to them?

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