Question about 2002 Chevrolet Impala

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Air conditioner does not start immediately

Air conditioner cycles on and off

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You may well have a ccot system. Cycling Clutch Orifice Tube. Rather than having a adjustable expansion valve, they use a fixed orifice for an expansion valve, then turn the compressor on and off to maintain correct pressures. This does produce higher fuel mileage. It is not necessary to run the compressor full time to achieve proper cooling.

Posted on Oct 28, 2012

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Check freon with gauges sounds like you might be a bit low or maybe the orifice is plugged

Posted on Nov 08, 2012

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4 Answers

2004 sebring air conditioner stops and starts


Low freon will cause the compressor to short cycle, when the compressor runs the pressure in the low line is pulled down and the low pressure switch turns it off. Not running the pressure builds up and turns it back on. In the old days there was no low pressure switch, with no freon to carry the oil the compressor was destroyed.

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Why won't the air conditioner clutch will not engage to start the air conditioner


If the clutch cycles on for a moment, then stops, and repeats, it's low on Freon. If it never even tries to spin the fuse my be blown.

May 19, 2014 | 2004 Dodge Ram

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My heater and air conditioner shut on and off


The air conditioner is controlled by in cab air temperature so if the air temp is low then the ac compressor clutch will cycle as the thermostat switches it on or off. If you want it to work all the time you may have to run the heat as well so that the thermostat is fooled into thinking that the air temp is hot.. Have the system checked out by an auto electrician

Dec 06, 2013 | Mitsubishi Montero Sport Cars & Trucks

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I have a 1993 Chevy S-10 4.3L automatic. The heat won't shut off. It pours out regardless of the position of the climate controls. Coolant level and condition good. AC would work but. Thanks.


#46-12-03: AIR CONDITIONER BLOWS WARM AIR (REPLACE A/C DELAY RELAY) - (Apr 7, 1994) 999999995.gif REVISION: 04/14/94
THIS BULLETIN IS BEING REVISED TO CORRECT THE TRANSMISSION LISTED IN THE MODELS. ----------------------------------------------------------------------
SUBJECT: AIR CONDITIONER BLOWS WARM AIR (REPLACE A/C DELAY RELAY)
MODELS: 1994 CHEVROLET AND GMC TRUCK S/T PICKUP WITH 4.3 ENGINE (VIN Z - RPO LB4), 4L60E TRANSMISSION (M30) AND AIR CONDITIONER/MANUAL CONTROLS (C60); OR 4.3 ENGINE (VIN W - RPO L35) AND A/C (C60)
BUILT BEFORE THE FOLLOWING VIN BREAKPOINTS:
PLANT DIVISION VIN LINDEN GMC RK501034 SHREVEPORT GMC R8501199 SHREVEPORT CHEVROLET R8105893 LINDEN CHEVROLET RK103097
CONDITION:
SOME OWNERS MAY EXPERIENCE A CONDITION WHERE THE AIR CONDITIONER IS TURNED ON AND DELIVERS ONLY WARM AIR.
CAUSE:
THE AIR CONDITIONER COMPRESSOR MAY DELAY LONGER THAN THE "ORIGINAL DESIGN" INTENDED 12 SECONDS, OR MAY NOT ENGAGE, DUE TO THE POSSIBLE MALFUNCTION OF THE COMPRESSOR DELAY RELAY.
CORRECTION:
TRUCKS BUILT BEFORE THE VIN BREAKPOINTS LISTED ABOVE MAY NEED A NEW AIR CONDITIONER DELAY RELAY. REPLACE ONLY WITH 15990540 AIR CONDITIONER COMPRESSOR DELAY RELAY. SPECIFIED PROCEDURE IN SERVICE MANUAL NATP 9429, PAGE 1B-59. TEST AIR CONDITIONER OPERATION FOR DELIVERY OF COOL AIR.
NOTE:TO TEST FOR PROPER OPERATION, PUT THE A/C CONTROL ON THE "OFF" POSITION, START THE ENGINE, THEN PLACE THE A/C CONTROL IN THE "ON" POSITION. THIS SEQUENCE WILL PROVIDE IMMEDIATE ENGAGEMENT OF THE AIR CONDITIONER COMPRESSOR. WHEN THE ENGINE IS STARTED WITH THE A/C CONTROL ALREADY "ON", THERE WILL BE A NORMAL 15.0 SECOND DELAY FOR THE AIR CONDITIONER TO ENGAGE.
SERVICE PARTS INFORMATION:
P/N DESCRIPTION QTY
15990540 A/C COMPRESSOR DELAY RELAY 1
PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

Jul 29, 2011 | 1994 Chevrolet S-10 Blazer

1 Answer

Air conditioner starts out blowing cold air,apparently actuator sticks causing the system to blow very hot air. Hours later a/c blows very cold air again, only to blow wry hot air again after about 30...


1.)If your System is OVERCHARGED this Will Occure due to the EVAPERATOR FREEZING UP
2.) Also if your HVAC Control Modual is Malfunctioning this will Aslo Cause this Condition, It Controls the BLEND DOORS that OPEN for COLD or HOT AIR Look Into these Items and Also Look Into wethrt the A/C Compressor Cycles OFF when it GETS OFF this Will POINT at the HVAC CONTROLER if it Cycles Off When Set For A/C or COLD Air

Aug 19, 2010 | Chevrolet C1500 Cars & Trucks

1 Answer

Windshield wiper fuse blows when Air conditioner is switched on


This sounds like somewhere along the lines, your wires are exposed and touching. Look for an area that may have been modified. For example, when people put aftermarket radios in, things can get tight/rough when putting the new headunit in. Perhaps your wires were pinched?

Jul 14, 2010 | 1995 Mitsubishi Eclipse

1 Answer

Air conditioner cold then hot


If the A/C blows cold at first, then gets hot, it may be because there is air and moisture in the system. What happens is that as the thermodynamic cycle of moving heat goes on, water in the system will freeze at the expansion valve, stopping refrigerant flow.

If you put a proper set of A/C gauges on it, the low pressure side would show zero or a negative pressure, while the high side would be >150... Usually low should be between 25 and 45, but because the system is frozen up, nothing moves, so the compressor is acting more or less as a vacuum pump.


Solution:
Have a professional evacuate the system, replace the receiver/dryer, add a bit of oil and then charge the system.

Jul 10, 2010 | 1998 Dodge Ram

1 Answer

My 2002 Kia sportage overheats when the air conditioner is on.


1. Check your coolant level- check at the radiator when cool, also.
2. Check to make sure that there is unblocked airflow to your radiator and a/c condensor (similar to the radiator)- blow compressed air or water from the back out the front of the fins... to make sure they aren't blocked.
3. Make sure the water pump is still circulating the coolant.
4. Also, may sound wierd but check your engine oil level too... it's part of the cooling process..

Jun 17, 2009 | 2002 Kia Sportage

2 Answers

Air coditioning fan


u have electrical problem with ur AC Fan connection

Aug 02, 2008 | 1995 Honda Accord

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