Question about 2001 Mitsubishi Eclipse

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AC problem AC light with ac on goes from green to amber( flashing) ac gets hot. freon has been fill and checked for leaks. please help.

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  • jrhawksnest Jul 10, 2008

    thanks alot for your input. it was quite helpful. no one else seem to know what to look at so again thanks.i 'll give that a shot.

  • Navster Jul 23, 2008

    I had the same problem. It seemed to happen when my car hit a cloud of dust. And when I turned of ignition and turned it back on, the problem disappeared. Hopefully It wont come back because its freaking hot here in texas.

  • Anonymous Jul 27, 2008

    Same problem... then A/C finaly quit

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  • Mitsubishi Master
  • 329 Answers

Check the revolution pick-up sensor.
Measure the resistance between terminals 1 and 3. Check that
the measured value is at the standard value.

Standard value: 405 ± 35 Ω when the ambient tempera-
ture is 20 °C (68 °F)

AC problem - moz-screenshot.jpg

Posted on Jul 10, 2008

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1 Answer

After charging ac with 1&1/4 cans freon and disconnecting battery to reset comperssor now it clicks on& off no cool air what next?


My Jeep did the same thing, i had to first buy a little can of dye at AZ and run it through the system where you fill the freon. It will show you with the help of a UV light if there are any leaks in the AC pump, it will glow purple if it is leaking. Usually tho you can't just fill the AC w freon all the time, a mechanic will have to purge the AC system. I cannot remember the name of the unit but there is a canister that needs to be purged before just adding freon. It sounds like that is what's going on since the pump is engaging.

Jan 28, 2013 | 1998 Cadillac DeVille

1 Answer

Problem with ac blowing hot air on a 2002 ford mustang gt


Low or no freon. Bad compressor. If its low, find the leak, repair, evacuate and recharge with oil and freon. CLEAN Freon. NOT a quick fill with sealant. That will do damage the system.

You can jump the compressor without having the key on. Run a jumper wire from the positive post of the battery to the single wire plug for the clutch. If it clicks, find an AC shop and have it checked for leaks and repair.

Aug 11, 2012 | Cars & Trucks

2 Answers

My H2 AC light just flashes and then goes out.


If the AC light does not stay on after you push the button and the air does not get cold coming out of the vents the system has a leak and has been evacuated. Once the pressure falls below a certain level the pressure sensor in the AC system tells the AC clutch to dissengage and the light on the dash will also go out to alert you that the AC system is not functioning correctly. The reason it flashes when you push it initially is that the system is trying reading the system pressure and finds none.
<br>Sgt Lumley

Apr 15, 2011 | 2004 Hummer H2

1 Answer

The heater works great but the air conditioner won't work at all


Check these items to narrow down the issue. HVAC in cars works on two different systems.

Air conditioning checks you can look at are

1) With engine running, turn on your AC on high as cold as it goes. Under the hood, listen for a clicking sound from the compressor. It should click on and off as the belt goes around the compressor every 15-30 seconds, or sometimes shorter or longer. IF this is working, then, the compressor is likely okay. However if not, then the compressor will need to be replaced.

2) IF the compressor is working, then it is either a low freon in the system issue or a leak in the lines in the system. This typically can be checked quite easily depending on the AC symptoms prior to the AC not working. If the AC worked, but slowly has not been working, or it works for a few seconds early in morning, and then stops...it's a low freon issue. The only way to check to see if it is leaking is to do some diagnostics by going to your local auto parts store and retrieving the proper freon for the vehicle as well as a freon filling tool. Shouldn't be too expensive. Follow the instructions on the can, and put one to two cans of freon in the system. The AC should work nearly instantly. If it goes back to hot within a day or two, then the lines/seals are probably worn or broken and it is leaking. The best option you can take after this, is to a certified AC repair shop as it will much easier and less frustrating for the home mechanic.

Hope this helps!

Chip

Jun 23, 2010 | 1998 Chevrolet Blazer

1 Answer

When I turn on the A/C the light will blink, compared to normally staying on solid and not blinking. The A/C blows out hot air now. What is the problem?


Well,this is telling you ,the ac needs attention,first guess,is,that the freon is to low for the ac to come on,or it is empty of freon,have the ac checked,and then make sure they put in u-v-dye to detect the leak when it does leak down again.If this was helpful,at all,please rate,thank you.

Jun 15, 2010 | 1989 Toyota Camry

1 Answer

My ac wont get cool.......it blows hot air and(caddy seville 95)


Below is a guide to troubleshoot and check system function. This can be done by most folks.

Look at the front of the ac compressor and have someone turn on the ac from inside the car. The front of the pulley(clutch) will spin when turned on.

If it does not spin, the low pressure switch (LPS) is not satisfied. Meaning there is not enough freon in the system to operate the system. Means low freon capicity because of a leak.

The LPS can be jumpered to cause the compressor to run (clutch to engaged) which will draw the freon in the system.

The LPS is usually a two wire sensor on the suction of the compressor. (between evaporator and compressor) Unplug the sensor and install a jumper, this will engage the clutch. Connect a new can of freon
and fill to system capacity.

The capacity of the ac system will be on a label under the hood, do not overfill. Probably about 2 lbs. Local parts stores (Auto Zone and Advance) will have freon with stop leak. This may help the leak. They also make a freon with a UV dye. I always add a single can with dye so that if stop leak does not work I can find the leak in the future.

The system should be filled until suction pressure is about 30 to 38 psi..

Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer2_bing.gif back to the compressor suction.

May 29, 2010 | 1995 Cadillac Seville

1 Answer

1992 ford aerostar ac not working


Below is a guide to troubleshoot and check system function. This can be done by most folks.

Look at the front of the ac compressor and have someone turn on the ac from inside the car. The front of the pulley(clutch) will spin when turned on.

If it does not spin, the low pressure switch (LPS) is not satisfied. Meaning there is not enough freon in the system to operate the system. Means low freon capicity because of a leak.

The LPS can be jumpered to cause the compressor to run (clutch to engaged) which will draw the freon in the system.

The LPS is usually a two wire sensor on the suction of the compressor. (between evaporator and compressor) Unplug the sensor and install a jumper, this will engage the clutch. Connect a new can of freon
and fill to system capacity.

The capacity of the ac system will be on a label under the hood, do not overfill. Probably about 2 lbs. Local parts stores (Auto Zone and Advance) will have freon with stop leak. This may help the leak. They also make a freon with a UV dye. I always add a single can with dye so that if stop leak does not work I can find the leak in the future.

The system should be filled until suction pressure is about 30 to 38 psi..

Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP2_bing.gif liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer back to the compressor suction.

May 29, 2010 | 1992 Ford Aerostar Extended

2 Answers

Air conditioner gets hot on passenger side while drivers side is


either your R134a is leaked out ore you need add and also add a dye see if leaks.
Add to the low side the car while running with gage with ac cranked on high follow metter dont over fill it loc the ac up. Easy 20 minute job wallmart sells the gage and R134s and so do auto zones

Jul 28, 2009 | 2001 Lincoln LS

1 Answer

Ac not working, blows hot air only. Recharged


Check the evaporator coil by sniffing the vents,floor is best, with your tester.

Jul 15, 2009 | 2005 Dodge Ram 1500

1 Answer

1998 ford explorer a/c and heater wont work


You lost the Freon again, because you probably only fill up Freon last winter, you didn’t check the leak and fix it,

You have to check the AC belt, compressor, AC clutch, condenser ( see the small glass window to find out if there is some bubbling, if your Ac has bubbling, you need fill up Freon.

Jun 30, 2008 | 1998 Ford Explorer

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