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2008 avenger ac blow hot air

Freon is charged, cold air run about 2 hours then just hot air,still fren pressure presnt, but the compressor is not engaged

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

fischmilch
  • 96 Answers

SOURCE: ac blowing ht air, compressor not coming on

Check the fuses/relay for the compressor. If good, bypass the pressure switch. If the compressor comes on, there is too little internal pressure. Have the system evacuated and recharged. If the compressor does not come on, it could be bad.

Posted on May 12, 2009

  • 1 Answer

SOURCE: Dodge Ram AC not blowing cold

By pass both pressure switches one at a time with small wire or a paper clip. If comperssor kicks on replace the swich that you bypassed.
if not it could be the fan clutch ot the compressor. Compressor runs about $400.00

Posted on Jun 23, 2009

heavymetal77
  • 721 Answers

SOURCE: ac not working, blows hot air only. Recharged

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

Posted on Jul 16, 2009

SOURCE: 2000 dodge ram pick up - ac blows hot air and freon is good

expansion valve looks like is not openning or the capilary tube is bad

Posted on Aug 02, 2009

  • 2 Answers

SOURCE: 2005 Dodge Durango Front AC won't blow cold, back air works great

Did anyone find the answer for this?

Posted on Aug 30, 2009

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2 Answers

HELP PLEASE MY AC DOESN'T BLOW COOL AIR, IT ONLY BLOW HOT AIR IS A AVENGER 2012.


This can be caused by several problems. The first and most common is the freon charge is too low and may cause the A/C compressor not to operate. I would have the system pressure checked by a qualified pro and top up the freon and do any leak repairs that may be required. If this is not the problem , he will be able to advise you on the next course of action to be taken. A/C systems are under high pressures and best left to a qualified A/C tecnician

Apr 08, 2015 | 2012 Dodge Avenger

1 Answer

Why does AC blow hot air?


The motor and door he is referring to is the blend door and it's under the dash behind the glove box. If you did not pull a vacuum before charging the system it will not get cold. Air in the system reduces the operating pressure and the compressor may not come on.

Oct 11, 2014 | 2008 Ford F 250 Super Duty 4WD

1 Answer

I have a Grand Vitara Suzuki 2008. Aircondition stop generating cool air. what could be the reason. car has 14,000 km and since last check I have travelled 1000 km


AC dead. all the time? truly all times.
1: does the fan blow? full speed.
2: does AC work on a hot day and a cold started engine? y/n
3: did you check the freon pressure, with the cheap refill kit
that has a gauge with the kit and hose.
is the gunge reading zero?
4: you start engine, and open hood and look at the AC compressor.
is the fan belt to that compressor turning, or is the belt missing.
if turning is the AC pulley spinning, that is not just the pulley but the
compressor front part and its main shaft, are they spinning.?
if not the AC clutch is disengaged.
if disEngaged, that means the AC logic box, is not happy.
The AC logic box can shut down the AC for 4 or more reasons.
and to find that , I stop here.
the fsm shows the pins on the logic box to see with logic input is failing.
on my car, its:
1: A/C on , switch is off.
2: fan not on, or power to it dead, no fan the logic cuts the compressor so the core dont freeze up and crack.
3: engine overload
4: engine overheat.
5: freon pressure too high.
6: freon pressure too low.
7: too cold outside, so shuts down , has to be extreme cold, RTM.
at the least. all this logic functions, save fuel and save other parts
from damage. and huge costs.

that is it for today, one more unsolved.

Aug 05, 2013 | 2008 Suzuki Grand Vitara

1 Answer

1995 Buick Century blowing hot air.


A mechanic would check the system with a set of pressure gauges. If the compressor is running, the low side would read around 30psi and the high side would be around 250psi. That is how you know if the system is full of freon or not.
You may have to get a professional diagnosis to proceed. If you replace the compressor, the accumulator needs to be replaced and a vac pump is used to pull all of the air out before the freon is added.

May 07, 2013 | 1995 Buick Century

1 Answer

I have a 2010 dodge hemi an the AC wasn't blowing


Is the compressor running ? What are the low and high pressure readings ?
Are the radiator fans running ?
Is one ac line cold and one hot in the engine compartment.

Jul 30, 2012 | Cars & Trucks

2 Answers

When I turn on my air conditioner in my 2004 Chrysler Sebring 2.7L it blows cold air until the car has been running for 10 plus minutes and then air blows hot and the RPMs go up and down drastically.


A mechanic would check for voltage at the ac compressor and the freon charge when the ac stops working.
If the compressor is cutting on and off the idle speed will change.

Jul 13, 2012 | 2004 Chrysler Sebring

1 Answer

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


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.

Jun 14, 2012 | 1995 Subaru Legacy

1 Answer

My A/C compressor shuts off after an hour (sometimes longer) of driving on a hot day.


I would get it checked by another mechanic shop, I suggest a complete AC service with freon, oil and dye every 5 years... The oil keep the compressor lubricated.... Also, there is always a 10-15% tolerance level in freon amount to be filled in. Auto compressor shut off is a built in safety feature that kicks in when pressure is too high in the system..... If you are in OC,Socal, let me know

Apr 27, 2017 | 2002 Mercury Mountaineer

1 Answer

2001 S60 Air blowing hot


There may be a problem with the AC compressor pressure cycling switch, it turns the AC compressor on and off as required to maintain proper pressure in the system, it is located in the low side line (large AC line) under the hood, it will have 2 or 3 wires going to it.

Aug 28, 2008 | 2001 Volvo S60

3 Answers

A/C blowing hot air. Compressor activates and system has pressure.


Could be the expansion valve. That's what allows the temperature to actually drop in the system - the contents of the AC system are under pressure, and are at a certain temperature. When the freon goes through the expansion valve, the pressure drops suddenly and dramatically, which "flash chills" the freon, allowing the air to blow cold. If it fails, you may get lukewarm air from the AC despite everything else working. Also though, check to see whether the AC evaporator fan (underhood) is working - on some cars, if it doesn't turn on, the compressor won't be run enough to cool the air.

Jul 29, 2008 | 2003 GMC Yukon

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