Question about 1992 Isuzu Rodeo

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Air conditioning put in freon began to get cool and stopped

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I recommend you take it in to a quality local independent repair shop so that they can evacuate the complete A/C system and check for leaks. Then their refrigerant recovery machine reinstalls the filtered refrigerant into your A/C system.

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Posted on Jun 25, 2008

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SOURCE: Air conditioning stopped cooling and the freon is

CHECK THE DRIVE BELT HAS NOT BROKEN

Posted on Jul 14, 2009

topmark14
  • 60 Answers

SOURCE: my 95 camry air condition starts cool and stops

ac relay

Posted on Jun 05, 2010

6ya6ya
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Posted on Jan 02, 2017

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My air conditioning button stay lite all the time and the air doesnt work when the car is at and idle


if it stops working at idle or stop lights, the problem most likely is that the condenser is not getting cooling air from the ac fan in front of it
this results in a high head pressure and so the high pressure switch stops the ac compressor
take it to an accredited ac specialist shop for a proper diagnosis

Jul 18, 2016 | 2003 Pontiac Sunfire

1 Answer

Air conditioning not too cold ??


Hello,
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Let me explain in layman's terms how the air conditioning (AC) system works and what could be happening to your car.

Like your body, the air conditioning compressor is the heart of the AC system, and Freon is the blood. The compressor pumps Freon throughout the AC system, either the older type R12 which costs as much as gold it seems these days, or the new environmentally-friendly R134A Freon. This Freon is a gas and liquid combination that is compressed and circulated throughout the air conditioning system. The compressed Freon is pushed through the system under pressure and is passed through different sized metal and rubber hoses and a special valve called an expansion valve that cause the gas to expand and contract.

This expansion and contraction makes the Freon gas very cold. This cold gas makes its way via metal lines into the dash area of your vehicle to the evaporator core. This evaporator core is like a small radiator, except it has cold Freon circulating inside and not hot antifreeze. A small fan (the AC blower fan which you control from the control panel on the dash) sits in front of the evaporator core and blows air across this cold evaporator and then through the vents inside your vehicle.

The other objective of the air conditioning system is to remove the heat from inside the cab of the vehicle. This heat is removed by the Freon with the help of the AC condenser located at the front of the car (usually in front of the radiator). The Freon coming back from the evaporator carries the heat from the cab to the condenser via rubber and metal hoses. Just like your radiator, the condenser is lightweight aluminum with many internal winding coils.
The Freon travels through these coils, and in between these coils are small slits or fins that the Freon is forced through. The condenser will have an electric cooling fan mounted in front or behind it to push or pull air through these fins to remove the heat from the Freon. Some vehicles still use the old fashioned fan blade driven by the engine to pull air across the radiator and the condenser.
Now I know that is just a tidbit of information on how the air conditioning system works, and it is very general, but I wanted you to know what to look for to give you insight as to what might be happening with your vehicle.
A few causes of low cooling efficiency or no cooling at all at idle are:

Lack of air flow across the condenser. Make sure the electric cooling fan motor near the condenser is coming on, or in models that are equipped with a fan blade make sure this fan is turning and is turning very fast.

Low Freon levels. Freon level and pressure should be checked by your certified air conditioning mechanic.

Overheating. If the engine is running hot or overheating, it can have a noticeable negative affect on the air conditioning system. Some cars have two electric cooling fans, one for the air conditioning condenser and the other for the radiator. Make sure they are both working properly. Usually at idle on a hot day with the AC on both fans will be on.

When the vehicle is traveling at freeway speeds, the compressor is pumping the Freon throughout the system much faster and harder than at idle. There is a dramatic increase in air flow across the condenser due to 55 mph winds, and the engine is usually operating at a cooler, more efficient temperature as well, thus allowing the air conditioning system to operate efficiently.
Note: An air conditioning system that is somewhat low on Freon can still feel comfortable at freeway speeds due to the added air flow across the condenser which can overcome the ill effects of slightly low Freon. Periodic air conditioning performance checks by your mechanic are the best way to keep the system in great shape.

Hope this helps.

Goodluck

Oct 08, 2010 | 1998 Cadillac DeVille

1 Answer

A/c


if you just added cans on freon to the system without gauges to see how much is in it,you have it over full, if the system is over full, it cant curulate .if it dont curulate it wont cool, i had one that was to full ,the hotter the outside temp got it stopped cooling, when it was 80 degrees it done fine when it hit 90 it stopped curulating,no cool.check it with gauges,check a/c fuse in compressor ,hope this is some help to you, thanks robert b.

Jun 28, 2009 | 2006 Toyota Tundra

1 Answer

Air conditioning system is not colling the car ? what do Ineed to do ?


i need to know how is not cooling the car?
is the fan blowing air or is the blowing air not cold?
it probably isnt cold.lets try that.
put a set of 134a ac gauges on the system and verify pressures.if it has low freon you may hear the compressor turning on and off.if so for sure its low and you will just need to add freon.
go get a 134a fron fill kit not the conversion kit.
and begin to fill untill the comp stays on and air is blowing cold.then stop filling and enjoy.
do not over fill as this will cause it to not cool again.

Jun 12, 2009 | 2002 Toyota Camry

1 Answer

Air conditioning not working. Blowing cool air in the back and hot air in the front.


Is there air blowing from the front vents? or can you hear the vacumm change when you change it from heat to cool..... I think it might be a vacumm problem... its a 1997 so the controller vacumm hoses may be cracking.. let us know

Jun 01, 2009 | 1997 Chevrolet Suburban

1 Answer

2001 Honda Odyssey Ex Air Conditioning Not Cooling


Hi, my best advise is to have your air check for freon leaks ,low freon causes the compresor cluth to stop working ,this can cause the air to blow hot .......

Jul 10, 2008 | 2001 Honda Odyssey

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