Common questions

Why is the AC not working on my Chevy Malibu?

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Why is the AC not working on my Chevy Malibu?

While there are a variety of reasons your Chevrolet Malibu air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 37%. of the time it’s.

Why does my air conditioner clutch not engage?

In a few cases, the clutch does not engage due to a clogged refrigerant circuit. If you want to diagnose an AC compressor clutch for defects, apply these techniques: Working Method 1. Set all air conditioning controls to the MAX before kicking off the engine. Check the front side of the clutch to examine its condition.

Where is the fuse puller on a Chevy Malibu?

There is a fuse puller located on the instrument panel fuse block. It can be used to easily remove fuses from the fuse block. Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.

What to do if an A / C compressor clutch does not disengage?

A/C compressors are difficult to work with because of the refrigerant stored inside. When a compressor clutch does not disengage, it will cause the refrigerant to build up and freeze the line. To disengage the clutch, a switch must be replaced.

How does the ECM work on a Chevy Malibu?

The ECM receives the input from the ECT sensor & passes that on to the BCM which in turn passes it on to the instrument cluster. The weakest part of that chain tends to be the engine-mounted sensor itself & its wiring. But a breakdown can happen anywhere in that chain.

What is the diagnostic code for a Chevy check engine light?

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Chevy diagnostic trouble codes. Manufacturer Specific Codes P0342Camshaft Position Sensor A Bank 1 Low Input – Related Information P1031HO2S Heater Current Monitor Control Circuit Sensors 1

Why is my ambient air sensor not working?

The BCM provides the voltage source for the ambient air sensor so low system voltage would affect its accuracy as well. The SM clearly shows the ambient air sensor is involved in the compressor control logic. The OP also mentioned some other weird things happening which can be attributed to low system voltage.

While there are a variety of reasons your Chevrolet Malibu air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. 37%. of the time it’s.

What to do if your Chevy Malibu fuse melts?

The wiring circuits in your vehicle are protected from short circuits by fuses and fusible thermal links in the wiring itself. Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse.

Why does my Chevy Impala air conditioner keep blowing hot air?

When the air conditioner in your 2004 Chevrolet Impala starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

What to do if your check engine light is not working?

The AC can then be checked for the system freezing up from possible temperature sensor failure, or a problem with the expansion valve. Only an in-person check can diagnose all three problems. I would recommend that you start by having the Check Engine Light illumination diagnosed by a certified mechanic, such as one from YourMechanic.

Why does my AC not turn on or off?

It is a computerized device that accepts signals from various inputs and makes other devices turn on or off as programmed. If the fans come on but the AC doesn’t get cold, you might have a failed refrigerant switch or AC compressor clutch, but first I’d check the wiring. If you’re comfortable doing so, unplug the pressure switch and jump across it.

What happens when the air conditioner compressor fails?

When the compressor fails, the most common symptom is warm air from the vents. A squealing or grinding noise may also be heard from the compressor in the event of mechanical fai… Read More When the condenser fails, the air conditioner will fail along with it.

When the compressor fails, the most common symptom is warm air from the vents. A squealing or grinding noise may also be heard from the compressor in the event of mechanical fai… Read More When the condenser fails, the air conditioner will fail along with it.

The ECM receives the input from the ECT sensor & passes that on to the BCM which in turn passes it on to the instrument cluster. The weakest part of that chain tends to be the engine-mounted sensor itself & its wiring. But a breakdown can happen anywhere in that chain.

Why is the pulley on my AC compressor not working?

Check the front side of the clutch to examine its condition. Also, find out whether the clutch and the pulley are spinning. If only the pulley is rotating, the compressor clutch is having an issue, which could be stemming from several sources – a blown fuse, bad clutch oil, low-pressure lockout, or an open wire in the oil.

Why does my AC compressor clutch not engage?

Look into This! Engaging the AC compressor clutch at home is not rocket science. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. What is the most common reason for an air conditioning compressor not to engage?

What does it mean when your AC compressor does not spin?

It is an ominous sign when the clutch engages but the compressor does not spin. Changing the compressor clutch could be the only solution in this case. A bad AC compressor clutch needs immediate fixing. A delay can cause serious damage to the air conditioning system and the engine.

Where is the fuse block on a Malibu?

The instrument panel fuse block is located at on the lower front side of the console, on the passenger side of the vehicle. Heated Seats Control Module – Driver (KA1), Heated Seat Control Module – Passenger (KA1), Heated Seat Switch – Driver (KA1), Heated Seat Switch – Passenger (KA1), Inside Rearview Mirror (DD8), and Sunroof Control Module (CF5)

Why does my car AC not turn on?

If you do and the AC turns on then the switch is bad – if AC doesn’t turn on then you may have a blown fuse or damaged wire, or worse a BCM failure.

If you do and the AC turns on then the switch is bad – if AC doesn’t turn on then you may have a blown fuse or damaged wire, or worse a BCM failure.

Where are the power windows on a Chevy Malibu?

The power windows in your Chevy Malibu are part of a system with switches at each window, a motor and regulator at each window and a master control panel at the driver’s position. There are also a number of fuses and relays to protect the main components from damage.

Are there any recalls on the Chevy Malibu?

GM knows of two fires that broke out in unattended vehicles, though thankfully, each was extinguished on its own, and no crashes or injuries have been associated with the problem. All told, 14,930 Malibu vehicles are affected by this recall: most were sold in the U.S., with 13 in Canada and seven in Mexico.

Why is my Chevy Malibu not defrost mode?

If the glitch occurs, GM says that “the system will revert to the setting selected when the vehicle was last driven. If that setting was not defrost mode, it cannot be selected and the driver may be unable to clear the windshield, which could lead to decreased visibility”.

Why does my Chevy Malibu not turn on?

Took it to the Chevy dealership and let them have it for a couple days, of course, didn’t act up. Most of the time, if you would turn the car off and back on, it would start working again. Finally, after fighting it for months, I got a check engine light for a thermostat code.

GM knows of two fires that broke out in unattended vehicles, though thankfully, each was extinguished on its own, and no crashes or injuries have been associated with the problem. All told, 14,930 Malibu vehicles are affected by this recall: most were sold in the U.S., with 13 in Canada and seven in Mexico.

If the glitch occurs, GM says that “the system will revert to the setting selected when the vehicle was last driven. If that setting was not defrost mode, it cannot be selected and the driver may be unable to clear the windshield, which could lead to decreased visibility”.

Why does my AC not work when temp is low?

Under normal circumstances you would be right. The ECM provides both power and ground to the ECT which is a variable resistor so when system voltage starts dropping (which is a result of corroded battery terminals) the temp readings are incorrect and since system voltage is low the ECM cannot read them correctly either.

What to do if your air conditioner is not working?

Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.

Under normal circumstances you would be right. The ECM provides both power and ground to the ECT which is a variable resistor so when system voltage starts dropping (which is a result of corroded battery terminals) the temp readings are incorrect and since system voltage is low the ECM cannot read them correctly either.

Why is my coolant temp gauge not working?

The coolant temp gauge gets its input from the BCM and the AC gets told to do its thing there as well. You could have anything from a dirty connector (“fretting”) to a failed BCM.

What kind of a / C system does a Malibu have?

Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. The A/C system in your Malibu consists of a compressor that is belt-driven, an evaporator and freon. If there is a problem with your compressor or evaporator, adding freon will not restore cooling.

What kind of refrigerant does a Chevy Malibu use?

Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. The A/C system in your Malibu consists of a compressor that is belt-driven, an evaporator and freon.

Why is my Chevy Malibu blowing hot air?

When the air conditioner in your 2002 Chevrolet Malibu starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.

When does the a / C light turn on in a Chevy Malibu?

If the AC is running, the light should be on. In my Malibu, with the windshield defroster on, the a/c compressor runs & the a/c light is on. I know that implementation of the A/C Compressor LED isn’t done consistently across vehicles. Some vehicles have LED turn ON whenever A/C compressor is ON.

Why does my Chevy Malibu have a cold range?

When I turn the temp knob to the cold range the air from the defroster outlets definitely feels cold so I presume the compressor is running as it should, but I’m just wondering. ’00 LS, 61K miles. Have had control head replaced (switching back and forth between norm and recirc); it’s not that.

What are the problems with my Chevy Malibu?

Chronic problem with blower resistor, speeds 1 and 2. Another chronic problem with the a/c switch. My mechanic charged $80 to fix both (probably double at a dealer)

If the AC is running, the light should be on. In my Malibu, with the windshield defroster on, the a/c compressor runs & the a/c light is on. I know that implementation of the A/C Compressor LED isn’t done consistently across vehicles. Some vehicles have LED turn ON whenever A/C compressor is ON.

Chronic problem with blower resistor, speeds 1 and 2. Another chronic problem with the a/c switch. My mechanic charged $80 to fix both (probably double at a dealer)

When I turn the temp knob to the cold range the air from the defroster outlets definitely feels cold so I presume the compressor is running as it should, but I’m just wondering. ’00 LS, 61K miles. Have had control head replaced (switching back and forth between norm and recirc); it’s not that.

Why does my odometer stop working on my Chevy?

If your odometer stops working in your Chevrolet, it may be due to a couple reasons. Depending upon the year and model of your vehicle, the fix may be something you can do or something you may need to take to your dealership for repair. If neither of these indicators is working, then the problem may lie within the speed sensor on your vehicle.

Why does my BCM stop working on my car?

3.The BCM is not passing that data to the tach itself in the instrument panel. Basically the ECM is losing track of the engine speed & doesn’t like that very much.

Why does my rpm gauge stop working after 100 miles?

Sometimes a new cat can pop a 430 code for the first 100 miles or so. You may have more than one problem or possibly they are tied together (my guess). Need more info on this: “the RPM gauge stops working”.

What happens when air conditioner fails in Acura MDX?

When the blower motor fails, the air conditioner and heater may still work, and heat or cool may be felt at the vents, but the air pressure will be dramatically decreased. This Read More

What happens when the air conditioner fails in a car?

When the blower motor fails, the air conditioner and heater may still work, and heat or cool may be felt at the vents, but the air pressure will be dramatically decreased. When the heater control valve fails, adjusting the temperature may not change the air temperature at the vents, whether hot or cold.

Replacement of most air conditioning components requires complete evacuation of the air conditioning system with a refrigerant recovery machine. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant.

What to do if your AC or heater is not blowing?

If your Blower Motor for the AC or Heater suddenly stopped blowing, look here first, it might save you several dollars. Situation, we have a friend that owns a 2017 Chevy Trax LT, she is a nurse who works with my wife, single mom and on a single mom budget.

Why is my a / C blower not blowing?

A metal that when it corrodes, it turns white, and unlike copper, aluminum corrosion does not conduct electricity at all and causes resistance issues and can cause overheating of a circuit. Took out a common finger nail Emory board and went to work, both sides of each contact, then used a small brass brush on each side and along the tips.

The system in your Malibu is designed to run with E-134A refrigerant. Servicing this type of system requires a set of A/C gauges that are equipped with the quick disconnect fittings for use in R-134A systems. The cost of these gauges are well worth it, because the same gauges can be used on all R-134A automotive air-conditioning systems.

Why is my a / C not working on my Chevy Silverado?

If it didn’t work or stayed on all the time then there is a problem. Subject: Air Conditioning (A/C) Blows Warm Air Intermittently. This condition may be caused by the A/C compressor clutch cycling out early when the low pressure side reaches approximately 380 kPa (55 psi).

It is a computerized device that accepts signals from various inputs and makes other devices turn on or off as programmed. If the fans come on but the AC doesn’t get cold, you might have a failed refrigerant switch or AC compressor clutch, but first I’d check the wiring. If you’re comfortable doing so, unplug the pressure switch and jump across it.

What happens when the clutch doesn’t work on an air conditioner?

The clutch disc is splined to the compressor shaft. As the clutch disc pulls in towards the pulley, the pulley provides the rotating power to operate the compressor. If the clutch doesn’t engage, the air conditioning compressor can’t pump refrigerant. So start your diagnosis by determining if the compressor clutch works.

How to fix a car that’s blowing hot air?

Scotty Kilmer, mechanic for the last 45 years, shows how to fix a car that is blowing really hot air, even though the AC system is turned on full cold. Often a bad main AC control unit goes bad, and he shows how easy it can be to replace. 1. Autel Diagnostic Tool: http://amzn.to/2nrT5op 2. Screwdriver set: http://amzn.to/2jaHIfP 3.

If you have ruled out that the ac system is NOT low of refrigerant or has any freon leaks , then it is time to visually check all the connectors and wiring throughout the system. In this case of warmer air from ac vents, we quickly identified that the ac compressor was not receiving voltage.

When the blower motor fails, the air conditioner and heater may still work, and heat or cool may be felt at the vents, but the air pressure will be dramatically decreased. This Read More

What kind of engine does a 2012 Chevy Malibu have?

Used 2012 Chevrolet Malibu Engine. The 2012 Chevrolet Malibu sedan offers a choice of a standard 169-horsepower 2.4-liter Ecotec four, or a 252-horsepower 3.6-liter V6; both engines feature dual-overhead camshafts, four valves per cylinder and variable valve timing.

How many fuses are in a Chevy Malibu?

Passenger Compartment Fuse Box № A Protected Component 1 15 Body Control Module (Door Locks) 2 10 Body Control Module (Interior Lamps) 3 2 Steering Wheel Controls 4 10 2008: Adjustable Pedals Module, Adjustab

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Ruth Doyle