Air Conditioner not working?

Don't know the cost it varies with locations

Is you car's air conditioner blowing warm air only and no cool air? Your A/C cooling problem could be caused by any of the following, check this guide out.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down this guide and report back.

My air conditioning is not blowing out cold air. It has been gassed, but still not working. What other problems could there be?

check the blending door, located in the air distribution ducts, it switches airflow from heater core (heat)to evaporator coil (AC)

i have changed the coil ,map censor,air mass flow censor,crank censor,and the fuel pump 1yr and half ago

Can you check for spark at the plugs when problem is ongoing? You can carry a spark tester in glove box, won't get hot, if spark plug wire is hot, use a glove. Take spark plug wire loose, put tester in boot, Ground tester to metal part of engine, watch for spark, engine cranking.

I have a 1999 chevy Blazer 4.3 vortec. The heat stays on even when it is turned off. Even when I put on the A/C is still blows hot air.

Sounds like the blend door is stuck. Either the actuator is bad or it is disconnected. The door directs air through either the heater core or the A/C core.

Where is the actuator located? Thanks for your help.

It's located on the heater plenum behind the dash. Toward the right side.

Air Conditioning problem
1999 Chevy Blazer 6 cyl Automatic

Took blazer to get a/c heat fix. Heat and a/c works but some valve was turned too far and it only blows heat now. If valve is turned the other way it will only blow cold air. Need the valve turned in the middle so both heat and a/c will work, but I do not know where this valve is. He did have a long screwdriver ( about 2 feet in his hand ) when he called me in to check the heat blowing and did say he was not sure how far to turn the valve. wrote the bill up, " a/c service set programer to heat

there are a couple of actuators on the heater/ac unit. one of them isn't working. they are either electric or vacuumif they are electric you have to check to see if they are getting powr. here is a picture that will be similar to your truck. theya re under the dash.

if my gadge is hovering right around 10 in the blue after a ac check and recommended vac and recharge and the air is not cold enough do i add more freon?

AC is not a "let's guess" type repair. It has to be professionally diagnosed. It requires a specific amount of charge and you can do a lot of damage and/or get hurt with a mistake.

A/C WORKS FINE WHEN WE DIVERT SWITCH TO HEAT IT JUST BLOWS COLD AIR

hope this helps

BASIC HEATER SYSTEM TROUBLE SHOOTING CHART
CONDITIONPOSSIBLE CAUSE

Insufficient, Erratic, or No Heat

.....Low Coolant Level
.....Incorrect thermostat.
.....Restricted coolant flow through core.
.....Heater hoses plugged.
.....Misadjusted control cable.
.....Sticking heater control valve.
.....Vacuum hose leaking.
.....Vacuum hose blocked.
.....Vacuum motors inoperative.
.....Blocked air inlet.
.....Inoperative heater blower motor.
.....Oil residue on heater core fins.
.....Dirt on heater core fins

My car 's air conditioning stopped blowing cold, I thought that it might need a recharge. I put in more refrierate, the can got really cold and I thought that I might have solved my problem. It is still blowing hot air! This is bad isn't it? It was blowing cold one minute and then hot the next minute! Can you help me?

Could be freezing up due to air and moisture in the system forming ice to block off the orifice tube.

Where is the orifice tube located?

The orifice tube or the expansion valve is on the evaporator

I just replaced compressor w/clutch it ran really good for about one month. Now it has cold air for about 10 min.then compressor shuts off and wont come back on unless car is off for a least 1 hout. If I drive for about 1 mile then stop for 15 min with car off and restart it the air wont come on it just blows hot air and wont come back on unless car sits again for at least one hour then it will stay on for 15 min and shuts down again. Any help or suggestion appreciated.

when i was younger i had an s10 blazer that was doing that, it turned out to be a cut out switch.

in my 94 it was either on the filter drier or on the ac line itself

the only other switch i know of is mounted on the compressor itself.

but if it was me id probally start checking on those 2 switches

Air Conditioning problem
1998 Chevy Blazer 6 cyl Four Wheel Drive Automatic

When i turn on my A/C no cold air comes out only hot air the condenser feels cold and so do the lines going to the compressor , the blower motor also works fine. When ever I switch over to where it markes hot air the condenser and lines start to go back to normal so I need your help figuireing out what to do to get cold air flowing in to the cab

alright! first off turn on the ac setting and turn the air from hot and slowly go all the way to cold. make sure you do this with the engine hot.

does air coming out of the vents change from very hot to outside air temp or is there hardly any temp change at all

I have a 4.3 L Chevy Blazer 1998. When you start the engine the heating and air "fight" with eachother and something under the dash pocket makes an odd squeaking sound. If you pull the fuses out that make the heat/ac work it blows HOT air constantly through the vents. I'm desperate as it's summer time in the south.

Sounds liek the blend door actuator is going out.Try removing the covers under the dash on the pass side to see if you can locate where the noise is coming from.If it is the actuator, try unplugging it and see if it will keep the door in the cool postion

Hi, I used a do it your self ac recharge kit hat I purchesed at my local auto parts store. I used and followed the directions, but the At aC does not get cold. Also, when it was on while I was doin this, the clutch runs a little loud. What can I do to have the AC run cold again

When it comes to AC system few thing need to be checked
you have to make sure belt is in a good condition and not slipping off the compressor
you may have to evacuate the system and replace filter and add the correct amount of oil and 134A gas
to much gas or low it will effect the degree
what do you have on the low side for pressure
also check and make sure coolant and operation of coolant fan
good luck

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need manual CHECK IT @
https://www.2carpros.com/kpages/auto_repair_manuals.htm

I have a 1998 chevy blazer that recently had engine repairs done. Iam expierencing air conditioning blowing warm air only and no cool air. I recharged a/c still blows out warm air. have automatic climate control system

check the HVAC fuse in the drivers side of the dash. It will be between the side of the dash and the door. Sounds like fuse is blown and it went into default mode.

Why does my chevy blazer blows out hot air even when the heater is off?

one of the vents is not closing. you need to find out if all the doors are closing in the off mode. if not, then it gets tricky to find the vent door and why.

Roy

Air Conditioning problem
1997 Chevy Blazer 6 cyl Four Wheel Drive Automatic

I have had the Compressor, Condensor and both lines replaced in the 97 Blazer, but no matter what the mechanics cannot find a problem. Would appreciate any suggestions as there is no leaks, two new condensors (as we trhought the first was faulty). Mechanic doing their best as they are not charging me but would like to know any advice.

did they check the evaperator for a leak do you know?

hi there...yes they have checked numerous times for leaks and found nothing - very frustrating!

did they check the evaporator?

My a/c is blowing warm. My compressor clutch is engaging when on high and max cool. Air blows through all vents and system is charged at 40-45 psi. The clutch makes a louder noise when spinning but engaging.

can you give us the exact pressure readings running

Roy

45 psi

high side and low side engine running

Roy

Air Conditioning problem
1996 Chevy Blazer 6 cyl Automatic 140000 miles

I tried to recharge it with kit and still no cold air. I did not see any leaks. Any suggestions to try?