My 2004 Acura TL is not blowing cold air. I have gotten a new A/C compressor as well just last year. It started acting up in January of 2017.

I have a 2004 Acura TL with 240000+miles on it
My cold air is blowing heat and that's not good considering I live in Texas lol but I got a new compressor sometime last year and it work find up until Jan or feb 2017. What can I do? And what can be the issue?

My car has 240049 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi there. The air conditioning system can have many things that could contribute to a heat cycle condition. Check the following conditions to find the source of heating issue:

Check

The condenser for any dirt or plugged up vent fins – blocks air from passing through
Check the refrigerant with a manifold set and see what the pressure is with the engine off
If you suspect a leak, spray down the entire system with soap water and look for bubbles
Look to see if the compressor clutch is engaging when the air conditioning switch is turned on
Look to see if the drive belt to the compressor has broke off or if it’s damaged

______________________________________

All of these factors can play into the A/C system. If you are unable to find a leak, then it could be the shrader valves leaking on the high and low ports. If the system is full of refrigerant and is not leaking and there is no power to the clutch with the switch on high cold, then take the low pressure switch harness off the low pressure sensor and bridge the terminals with a paper clip. If the clutch engages, then the low pressure sensor / switch has failed and needs replaced. If you need further assistance with your air conditioning system blowing hot, then seek out a professional, such as one from Your Mechanic, to help you.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The most common reasons an Acura TL ac isn`t working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. You may not realize there`s a refrigerant leak until the air conditioner stops blowing cold.
A very common cause of an air conditioner not being cold is that the refrigerant needs to be recharged. You can charge it yourself with a charger kit, but you may be more comfortable bringing it to the shop for an easy fix.
Common Reasons AC Doesn`t Run Cold

The most common causes of broken air conditioning leaks or compression issues. If you are feeling cool — but not cold — air, the issue could be a clogged filter, a problem with the cooling fan, signs of radiator trouble, or it could simply mean it`s time to recharge your AC.

If your central AC is not blowing cold air, the refrigerant may be the problem. The unit could be running low and need additional refrigerant added. The most likely cause of this is a leak. A leak not only keeps the AC unit from cooling properly, but also it can cause other issues within the home.
Reasons for weak AC airflow include: A clogged air filter. Frozen evaporator coils. Leaky or blocked air ducts.
If your air handler is running but not blowing air, there are two likely scenarios; either a broken AC blower belt or an issue with the motor itself. If the air handler is humming or buzzing, but not making the mechanical sounds of a motor running, you`re most likely talking about an issue with the motor itself.
Here are some of the most common causes of why air doesn`t flow out of your vehicle`s vents: Your air intake is clogged, meaning that air isn`t getting in from the outside at all or isn`t circulating properly. There is a blown fuse in the ventilation system. Electrical issues such as a bad relay.
3.2 TL The under-hood fuse box is located in the engine compartment next to the battery.
To protect the blower motor power circuit, a 20-, 25- or 30-amp fuse is usually located in the fuse panel under the dash. The rating of the fuse will depend on the vehicle application and how much power the blower motor requires at full speed.
You will want to have the unit examined to look for signs of a blown fuse, a tripped circuit breaker, a broken thermostat, or dirty air filters. Dirty or clogged filters commonly make AC compressors stop working.
The short answer is that your AC compressor and refrigerant should last about 12-15 years. Learning what crucial components, and how to maintain the compressor, can keep your AC running efficiently for its entire lifespan.
Overheating is one of the main reasons why compressors fail, and it is usually caused by not enough refrigerant in the system.
According to the Department of Energy1, 78° Fahrenheit is the sweet spot for air conditioners to balance energy savings and comfort when people are at home and need cooling.
While there are a number of commercially available coil cleaning solutions on the market, air conditioner coils can be cleaned with a solution of a mild household detergent and water. The detergent and water mix is applied to the coil using a low-pressure sprayer.
With a dirty or blocked condenser, even the subcooled liquid temperature coming out of the condenser will be at a higher temperature. This means that the liquid temperature out of the condenser will be further from the evaporating temperature.
There`s a sticker under the hood (Fig. 1), somewhere right up front, that tells you which refrigerant was used in the factory fill, and it also tells you how much. That sticker is part of SAE Standard J639, which provides safety and design standards for automotive air conditioning refrigerant systems.
The most common refrigerant is R-134A (or HFC-134a) however newer vehicles may use R-1234YF (or HFO-1234yf). Even still, some very old vehicles may also be using R-12 (or Freon). The easiest way to know is to check your vehicles A/C system nameplate under the hood.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged.
The Body Control Module is a generic term for an electronic control unit, responsible for monitoring and controlling various electronic accessories in a vehicle`s body. Typically, in a car, the BCM controls the power windows, power mirrors, air conditioning, immobilizer system, central locking, etc.
One of the first symptoms of a problem with the blower motor relay is a blower motor that does not function. As the relay is the switch that supplies current to the blower motor, if it fails internally, then power may be cut off from the blower motor circuit causing the motor to no longer function.
The Copper Pipe (Suction Line) should be sweating and cold to the touch during a hot day. If it is not cold, your compressor could be off (bad capacitor/ hard start kit) or low on Refrigerant. Your Breaker is Tripped. Be Careful because this usually indicates a problem with the compressor or wiring.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My 2004 Acura TL is not blowing cold air. I have gotten a new A/C compressor as well just last year. It started acting up in January of 2017.
ANSWER : Hi there. The air conditioning system can have many things that could contribute to a heat cycle condition. Check the following conditions to find the source of heating issue:

Check

The condenser for any dirt or plugged up vent fins – blocks air from passing through
Check the refrigerant with a manifold set and see what the pressure is with the engine off
If you suspect a leak, spray down the entire system with soap water and look for bubbles
Look to see if the compressor clutch is engaging when the air conditioning switch is turned on
Look to see if the drive belt to the compressor has broke off or if it’s damaged

______________________________________

All of these factors can play into the A/C system. If you are unable to find a leak, then it could be the shrader valves leaking on the high and low ports. If the system is full of refrigerant and is not leaking and there is no power to the clutch with the switch on high cold, then take the low pressure switch harness off the low pressure sensor and bridge the terminals with a paper clip. If the clutch engages, then the low pressure sensor / switch has failed and needs replaced. If you need further assistance with your air conditioning system blowing hot, then seek out a professional, such as one from Your Mechanic, to help you.

everytime I turn my car on the ac starts to blow air even if I switch it off. it won’t blow cold air or heat.
ANSWER : Hi there. Based on your question and input, it looks like your AC control switches are damaged, causing the vents to activate even if the switch is not activated. This is sometimes an electrical problem, as it could be triggered by a damaged electrical relay. You might want to have a professional mechanic complete an AC is not working inspection, so they can determine what is causing this issue you’re experiencing and recommend the right repair.

My air is blowing cold-hot-cold-hot-cold-hot…
ANSWER : It is possible that you have a leak in the AC system. There are pressure switches that will turn off the compressor if the pressure is too high or too low. The low refrigerant level could cause the AC compressor to cycle on and off. If you would like to have this done, a certified technician from YourMechanic can come to your car’s location to diagnose the AC system and make the correct repair.

Air conditioning blowing mildly cold air on the coldest setting, turned off/on again, now blowing cold air, should it be checked?
ANSWER : If you are getting ready for a long trip and suspect the cooling fan may be not coming on for the radiator and a/c then you should have the a/c and cooling system performanced checked before trip. Nothing worse than breaking down when out of town in a strange area.

Hot air mixed with cold blows from air conditioning
ANSWER : Hey there. You will most likely have to have a mechanic bypass the heater coolant lines to have this resolved. Your A/C may not be controlling the air flow inside the evaporator correctly out of the vents and may be the blend door actuator stuck in the heat position. Have the AC system diagnosed first before bypassing the heater.

When idling, car overheats and A/C blows hot air – 2001 Saturn L100
ANSWER : Hello. The most likely cause of the issue that your are having would be a faulty cooling fan. The cooling fans purpose is to keep the radiator and condenser for the air conditioning cool during the idling function of the vehicle.

If the cooling fan is not working, this will cause the radiator and condenser to get very hot. When the radiator and condenser get hot, this can cause the vehicle to overheat and the air conditioning not to work. When the vehicle is driving at higher speeds, the force of air that is created towards the vehicle will flow through the radiator and condenser and therefore keep them cool. I would recommend having the cooling fan checked to make sure that it is working properly. If not, I would recommend having the cooling fan replaced.

I have a 2013 cadillac xts. The ac stopped blowing cold air a couple years ago and all i had to do was turn it off for five minute
ANSWER : There are innumerable things that can go wrong with the A/C system and so the best thing to do is request an air conditioning system inspection and the responding certified mechanic will get this resolved for you. The possibilities that might account for the problems you are experiencing range from a malfunctioning expansion valve, low state of charge, moisture in the system, refrigerant leaks, faulty cooling fans on the condenser and so forth. If there is a leak, it will have to be repaired because leak rates in newer systems are very, very small and they have to be because the installed refrigerant charge is much lower than in years past. The only way to pin it down is to get the system professionally inspected and diagnosed. Once diagnosed, the mechanic will be in a position to give you a repair strategy to get the A/C fully functioning and he or she will estimate the cost of the required repair. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

While driving defroster set to hot blows hot air as it should, while idling it is blowing cold air.
ANSWER : First, the coolant level should be checked to make sure the radiator is full. While the overflow tank may be full, the radiator cap must be taken off to check the level inside the radiator. If you find the level is very low, you have a coolant leak that must be fixed. If coolant levels are normal, an engine thermostat or heater control problem may be what you’re experiencing. Consider hiring an experienced technician like one from YourMechanic who can come out and take a closer look at your lack of heat concern to offer a more personal diagnosis.