Question about 2002 Mitsubishi Galant

1 Answer

Replaced a/c compressor serviced with oil and 134a still blows hot air. 2001 galant 2.4 cyl

Posted by Kevin on

Ad

1 Answer

Adam Scott Roberts

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Mitsubishi Master
  • 1,243 Answers

Do you have a guage to check the low side pressure? if the low side pressure is less than 20 psi then you could have a bad expansion valve that is not letting the freon circulate. also check the controls to see if the heater works all the time. the air temp door may not be moving to the cold position.

Posted on Jul 16, 2011

  • 1 more comment 
  • Kevin Jul 17, 2011

    Ya the heat works fine vacuumed the system and recharged. It reads 50 psi and it's about 95 degrees outside. But my manifold test set says the high side is sitting at zero now????

  • Kevin Jul 17, 2011

    Anymore suggestions? I am kind of tired of buying 134a. Is it possible it needs an oil charge? I put some in during installation but I'm wondering if the vacuum/pressure check dumped everything

  • Adam Scott Roberts Jul 17, 2011

    if the compressor clutch is working and the radiator cooling fan is working and you have pressure on the low side and none on the high side the the expansion valve is stuck open on the low side.

×

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

3 Answers

2003 ford focus no cool air is blowing out. Could it be the evaporation cord?


Make sure your blower fan is turned on and is blowing air. When you push your a/c button the yellow light should come on. If it is not blowing cool, it could be several things. Low on 134a or the control that has the a/c button on it could be bad or blown fuse, bad compressor, etc. If the air is cool but not cold the 134A is low. If it is still blowing hot, check and make sure that the clutch on the compressor is locked in. It most likely is not. Check ac fuses and ac relay, if they are good, check the 134a ,if low, refill it. This should fix it. Remember that if the a/c clutch is not locking in, you cannot add 134a because of no circulation.On some vehicles, if it is completely out of 134a, the relay will not trip and you will have to bypass the relay to provide power to the compressor to fill it. If you do all of these and it still does not work, you will need to take it to a professional. If you need to, reply back and I will give you more possibilities.(I think that you mean evaporator coil)

Jun 03, 2014 | 2001 Ford Focus

2 Answers

Air conditioner doesn't work, blows hot air


The first thing to do is check to see if the compressor under the hood comes on. With the hood open start the engine and turn on the air conditioner. Listen for a click under the hood or have someone watch for the compressor to kick on. If it does not then the problem is either a fuse or low freon. If it does then you need to see if the blend door on the inside under the dash is moving from hot to cold when you change the dial for the temperature.

Apr 08, 2014 | Toyota Sequoia Cars & Trucks

1 Answer

MY AC ON 2003 FORD MUSTANG BLOWS HOT AIR AND DONOT HAVE OWNER MANUEL TO SEE IF FUSE BLOWN


The most common cause for an AC blowing hot air is the system is low on refrigerant. A small leak will eventually lose refrigerant until the compressor eventually will shut down. Most compressors require a minimum of 20psi to engage and chill the air. Most certified service stations can diagnose and recharge most systems for $100-150 depending on where the leak is. There are do it yourself kits available at most auto parts stores that come complete with leak detector (R-134A with dye to show where leaks are) compressor oil, and a recharge hose.

Aug 31, 2011 | 2003 Ford Mustang

1 Answer

2009 galant, added coolant.. still blowing hot air


Hi, there are several reasons your vehicle may be blowing hot air through the vents, such as a need to recharge refrigerant. There could also be a problem with the air conditioner's compressor. Vents will blow hot air if the compressor does not activate when the A/C is turned on. There may be an obstruction in the system, or the blend air door inside the HVAC unit may be stuck in the HEAT position so no air goes through the A/C evaporator.

May 25, 2011 | 2009 Mitsubishi Galant

1 Answer

The A/C is blowing warm air? What is the factory refrigerent? Can I easily change to the new 134a?


check the service ports if they are screw type it is r 12 if they are quick connect type it is 134a yes you canconvert it i do it all the time
go to autozone or oreillys and get a retro kit (a little box of fittings) about $7 3 cans 134a and ester oil vacuum system down with pump for 30 min add 2 oz oil and 2 1/2 cans 134a.

Jul 03, 2009 | 1994 GMC Jimmy

1 Answer

Replaced all air conditioner parts and still blows cool air NOT COLD. Guy that just replaced evaporator said it could be a sensor that needed to be reset by mitsubishi. Is this true????? this is a 2001...


no dealer has a reset for the a/c system by you mentioning that you replace everything it means the a/c compressor,air dryer,and the most important the orfice tube. if you hadnt replace the orfice tube wich converts the liquid into gas when it gets hot thats your problem.alot of mechanics wont change it as an a/c mechanic will.

Jun 22, 2009 | 2001 Mitsubishi Eclipse

1 Answer

The ac only blows warm air, have recharged it with freon but it only cools minutes before blowing warm again, could find no leaks


There are special cans of R-134A with dye in them for detecting leaks. Most leaks occur around the fittings near the compressor. Recharge the system with the leak detector can or R-134A. There are also cans of R-134A with an additive to stop leaks. I would use these products to either detect your leak or to stop it. Best of luck.
Greg

May 24, 2009 | 2001 Jeep Cherokee

Not finding what you are looking for?
2002 Mitsubishi Galant Logo

204 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8984 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14850 Answers

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

Answer questions

Manuals & User Guides

Loading...