1995 Subaru Legacy Logo
Anonymous Posted on Jun 14, 2012

2008 legacy air conditioner was blowing cool air but not cold I added one can 134a on low pressure side with motor running ac on high cold now it only blows hot air

1 Answer

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Master 4,803 Answers
  • Posted on Jun 15, 2012
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Oct 10, 2009
Answers
4803
Questions
0
Helped
2961145
Points
18833

I highly recommend that you get it checked by a professional. You may have a restriction in your system, or the system is way overcharged. In either of these cases, the possibility of high pressure causing lines or hoses to burst and possible severe damage to your vehicle, like a destroyed compressor, is very likely.

Also, check the can that you added freon from. Many of the small cans of freon sold at the local parts retailers have several ounces of "oil charge" in them. Many times, when these cans are used to fill the system, the system ends up saturated with too much oil, which can also cause dangerously high head pressures, which can result in severe damage to your vehicle. In these cases, the system must be evacuated and flushed out to reduce the amount of oil in the system before it will cool properly.

5 Related Answers

co7196

Ned C Cook

  • 3433 Answers
  • Posted on Jul 10, 2009

SOURCE: the air conditioner is blowing cold air on the

you have a shutter no functioning

Ad

Anonymous

  • 382 Answers
  • Posted on Jul 19, 2009

SOURCE: the air conditioner switches off

If you are positive it is full, then I would have someone check the pressure switch on the evaporator. When the system pressure drops, it will shut off the system. Usually people think the system does not work when I buy a car, and 9 out of 10 times it is just not fully charged. I wish you luck and have a great day.

Wayne Holden

  • 512 Answers
  • Posted on Sep 08, 2009

SOURCE: 2000 forester air conditioner blowing hot air

Replacing a hose does not cause another to blow. It does allow the system to function and show you where other things are worn out. There are not that many hoses in an AC system unless the Forester is pooly designed...... If you suspect more bad hoses, buy and replace them yourself, IF the system has no freon in it!!!! You aren't allowed to just dump the freon into the air, that is illegal, but if it leak out because the dealer did a poor job repairing the system (didn't check for other bad hoses or leaks) then there is no foul. Once you break the system's integrity, do not leave it open to the air very long as this will let contaminants get into the lines. Buy everything you want to replace and do it all in one day. Once you have everything installed, then you can take it to someone for a vacuum down, leak check and recharge. You will probably have to replace the filter/dryer (unless the dealer already has, for that $420 he should have). You can check at any good auto parts store and they will tell you how many hoses there are in the system. Metal ones do not need to be repalced unless they are kinked or worn through.

Before starting on this, make sure the parts the dealer put on are not at fault, that's his job and his cost, not yours.

Anonymous

  • 324 Answers
  • Posted on May 28, 2010

SOURCE: air conditioner blows hot air

check for a loose connection on the A/C compressor, just behind the pulley/clutch or it might need to be recharged, if the car is r134a ready then it will cost about 40 bucks to get a simple recharge kit from an auto parts store.

Azrael SRL

  • 11800 Answers
  • Posted on Feb 07, 2011

SOURCE: i have a 2007 subaru legacy. it has 17000 miles im

The air is mixed and routed inside the dash by some flaps. In your case the flap that regulates the mixing of hot and cold air for the passenger side is broken or stuck in the cold position.
The only way to fix that is to remove the dash , access the air system and fix the flap.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1helpful
1answer

On my 2006 ac works good when engine is cool, in stop & go traffic it blows hot air & head pressure gets high in ac, car temp is ok what's wrong

How do you know head pressure is high? Do you have an auxiliary electric cooling fan that is not coming on in this situation? It should be in front of the AC condensing coil. There may be a switch tied to the system that is bad. This switch is sometimes activated by the pressure in the high-pressure line to the condenser coil. If there is not enough freon (134a) the pressure will not be high enough to activate the cooling fan switch. I recently added one can to my system and it made the fan run whereas it did not before adding the freon.
0helpful
1answer

Ac wont blow cool

check the actuator door on the heater and make sure it is opening an closing the door on the heater to transfer from heat to ac. It is a small motor attached to the heater and allows the ac to be directed to the vents.
0helpful
1answer

The compressor is working but it is not blowing cold air. air turn off once in a while. need to turn off motor and restart truck so the air conditioner can restart

YOU MORE LIKELY NEED MORE REFRIGERANT IN SYSTEM SOUND LOW FIRST HOOK A MANIFOLD GAUGE SET CHECK AC LOW PRESSURE SIDE AND HIGH PRESSURE SIDE.LOW PRESSURE SIDE SHOULD BE 34 PSI AND HIGH SIDE SHOULD BE 228 PSI.
1helpful
1answer

I have a 1999 dodge ram v8 5.2L the ac accumulator was replace after the truck has been setting for about 4 yrs replaced the vacuum lines which as well as the gaskets i added about 2 and a half cans of...

you may have over filled the ac with reon and are over pressuring the system causing the high pressure switch to activate shutting off the ac, each can is 1lb
1helpful
1answer

Air conditioner compressor runs - freon is up to proper level....not cooling??

BOTH High and low readings should be checked to have a better idea of what is going on with an AC system but based on the limited information… the compressor is not engaged or is not pumping. Below are some things I would check;

1. Check the high and low gauge readings with the AC on & set on MAX/Recirculate, middle vents with the engine at 2,000 RPM’s, blower speed on high.

2. Check the vent temperatures with a thermometer from the middle vents, far right & far left vents?

3. What is the outside temperature at the time the readings were taken?
4. Check to see if the condenser fan blowing strong?

5. Notice if compressor clutch is cylcling excessively.
Could be overcharged, not enough air going across condenser fins, compressor not pumping sufficiently… BOTH gauge readings are really needed to get a better idea.
Below are normal car AC pressure readings with 134A.

Normal readings on high and low side with AC OFF (static pressure) – Depends on outside temperature, but normally is between 80-105 PSI

Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s – Ranges from 25-35 PSI

Normal high side reading ranges from 200-350 PSI

Don’t assume that if adding little Freon is good that adding a lot is better! Overcharging just a little can decrease the performance of the system and possibly damage the compressor

Thank you for using fixya and good luck, keep me posted. Be glad to help you get your A/C running again soon.
1helpful
1answer

AC comes on, then shuts down before car is cooled. Compressor activates and blows cool air for about 15 seconds then shuts down.

Low on R134a, you need to have the system recharged. Try to stay away from the do it your self kit that most Auto Parts store carry.
Below are normal car AC pressure readings with 134A

Normal readings on high and low side with AC OFF (static pressure) – Depends on outside temperature, but normally is between 80-105 PSI

Normal low side reading with AC on high speed and MAX & engine at 800-1000 RPM’s – Ranges from 25-35 PSI

Normal high side reading ranges from 200-350 PSI

Don’t assume that if adding little Freon is good that adding a lot is better! Overcharging just a little can decrease the performance of the system and possibly damage the compressor.

Thank you for using fixya and good luck.

http://www.freeautomechanic.com/airconditioning.html
0helpful
1answer

1998 gmc sonoma air conditioner - not cold

Check the magnetic clutch is engaged on front of a/c pump, have the motor running, a/c on and fan on high, if the centre hub is static the pump in not switched on, this can happen when the gas pressure gets low.
0helpful
1answer

2000 chevy tahoe air conditioning blowing warm air

probably a leak.

what are your high and low side pressures?
2helpful
2answers

96 Tahoe no Cold Air

YOU NEED 28 PSI ON LOW SIDE AND ABOUT 190 ON HIGH SIDE.YOUR REFRIGERANT IS LOW THAT WHY COMPRESSOR CYCLING ON AND OFF.
2helpful
2answers

1993 buick century

Heater Control Module
Not finding what you are looking for?

394 views

Ask a Question

Usually answered in minutes!

Top Subaru Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a Subaru Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...