2007 suburban, the air will not blow out of the regular front vents, only blows out through the defrost vents we think it is the blend door, and have the new part, . If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. He started writing automotive articles to share his garage experience with car enthusiasts and armature mechanics. Electronic climate control module on Amazon https://amzn.to/2YSz4VlManual climate control module on Amazon https://amzn.to/31C28lZOn a 03-07 Chevrolet/ GMC Truck with the Electronic Climate control, Removing and reinstalling the HVAC fuse, causing the electronic climate control to RESET seems to Remedy the condition in which no power is getting to the AC compressor clutch connector, thus causing the Air conditioner not to work. The most common causes that hinders normal operation of air conditioning system on your Chevy Tahoe are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. Meanwhile, a prolonged clogged AC vent may eventually lead to overheating within the air conditioning system and cause the HVAC system to completely shut down. We recently created this blog site to enable us to share our knowledge with other automotive mechanics and car owners. Front was not blowing air only the rear. 2005 CHEVROLET TAHOE. Dealer or do it myself. Monday, August 19th, 2019 AT 6:40 PM The catalytic converter is a critical component of your car's exhaust system that helps minimize the amount of toxic gas released into the atmosphere. A clogged air intake system may be the reason why your cars air conditioners front vents are not blowing out. It operates more than one door by moving levers when it rotates. We are a team of ASE certified mechanics The blower motor is a very important component of your vehicles ventilation system. It is located on. The OBDII connector is usually located under the dashboard. It is important that you enter this 100% correctly, otherwise the result of the search may be inaccurate. Therefore, when your cars AC starts running on a low refrigerant level, it will be difficult to circulate the cold air flow properly. I have already checked freon and it is fine. When the battery is disconnected and reconnected, many of them go through a calibration sequence to determine the full range. Did you ever figure out what was wrong with your van? If the pipe coming out of the evaporator is cold, then it's likely a blend door problem, probably an actuator. I changed my compressor and the front ac was work but not the rear so I changed the orifice tube and the rear regulator valve and now the rear works but not the front I used 3 12oz Is this enought if not how many cans do I need to fill the system. For this purpose, this article is strictly focused on the factors that can cause your vehicles air vents to stop functioning and how to fix some of these problems with a few easy steps. Therefore it is recommended to do this at a workshop. Step 2 - Check the switch selector It could be faulty. A common symptom of a faulty blend door actuator in vehicles with dual zone climate control system is one side blowing hot air while the other side is blowing cold air. The air conditioner in my 2007 chevy tahoe LTZ is not working properly. Osuagwu Solomon is a certified mechanic with over a decade of experience in the mechanic garage, and he has over five years of experience in the writing industry. Have gone back and forth with my mechanic and need to get it fixed Live in Az and my family is HOT sitting in the back. Monday, August 19th, 2019 AT 6:39 PM The blower motor relay is an electrical component that supplies current to the blower motor of your car. It was very tight and sturdy. The worst damage, however, is a failure of the AC compressor when it eats itself due to insufficient lubrication or a production error, metal chips form, which are distributed throughout the Tahoes AC system. Where is the air blowing when you are moving if it's not blowing through the vents? Without the cooperation of this component, the refrigerant wont be able to circulate cold air properly. Home Troubleshooting Chevy Tahoe AC blower motor not working causes and diagnosis. link to Will Brake Fluid Remove Paint? Few factors can affect the functionality of the blower motor like electrical problems, aging, etc. Just had another(2nd tine in a year) New compressor put in (1st one took 11 years to go out ), cold blows in front. The refrigerant is designed to work in synergy with the compressor within the air conditioning system. A functioning ventilation system is needed in most modern vehicles for comfortability while driving. With the ac on and the compressor not running, lightly tap the switch with a wrench of something, just not too hard. 20077 tahoe drivers side front 7 rear door speakers not working the 1 " tweeter on the drivers side is working ..are the speakers bad or is it something to do with the stereo. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow. Welcome to rxmechanic.com. 0 answers. You can try disconnecting the battery cables and touching them together for a minute or two. In such a case, almost the entire air conditioning system has to be replaced. The ventilation system of your vehicle is connected with various hoses that transport fluid; if there is any damage to these hoses, the ventilation system will not be able to function properly. This problem has been reported to cause fires under the hood. - All You Need To Know. No not a problem. . If this is the case, the only option is to replace the broken part. In other cases, the front AC may stop working with only the back AC working. I Was Never Able A/c In Front Will Not Cool And Doesn't Blow As Hard. Since Chevy Tahoe is equipped with on-board diagnostics (OBD), a fault diagnosis can provide initial indications of where the malfunction is located in the air conditioning system. Just because of the timing, I assume the dead battery and this AC problem are somehow connected. Over time, grime, bugs and other small particles can build up on its surface and in the gaps of its mesh. However, my air conditioning will now only blow out of the defrost vents. Anytime there is a problem with the temperature of the air conditioning system, it could be a problem with the blend door actuator. In this way, it can be determined whether the loss of refrigerant is due to a defective condenser. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door actuator, or a defect in the climate control unit. The most common causes that hinders normal operation of air conditioning system on your Chevy Tahoe are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. There can also be a refrigerant leak in the evaporator, in that case the evaporator will have to be replaced. This process cleans the air that flows into the air conditioning system before it circulates. A failed condenser can prevent cool air from flowing through your vents. Re-installed the actuator. But when it chooses to work, yes, you can hear . You will notice specks of dust and debris on its surface if you have not cleaned the filter in a long while. First of all, you must ensure that you prevent your cars AC compressor from going bad. If you drive your vehicle in dusty or polluted environment, the filter can get dirty much sooner than manufacturers recommendation. Does it have a white plastic half circle shaped gear on the outside of it? In any case, ensure to contact an expert auto technician to diagnose the AC problem before opting for a repair or replacement of any component. Unfortunately, this procedure does not allow you to get into the deeper layers of the filter. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyers guides, and car and tools comparisons. The information may be listed in your vehicles owners manual. Simultaneously my oil/fuel/engine temperature/ and voltage gauges stopped working, AC stopped blowing cold, lock/unlock and power windows failed. Checked the pressure on the system, around 40 which is half ambient and should be correct (also matches pressure on my brothers tahoe which works correctly). It is a 2001 Chrysler Town and Country. The AC blower motor in Chevy Tahoe needs electricity to work. The only thing that helps is swapping with a new one. If the compressor fails, the AC will only blow warm air. This can be done, for example, with a vacuum cleaner or a compressed air system, removing at least a large part of the visible dirt particles. If you are a DIYer, kindly get a good sealant at a car accessories or auto parts shop across the street. Do Not Sell or Share My Personal Information. Firstly, take out time to inspect your cars AC vents on the dashboard. In order to do this, you must run the air conditioner on full blast at least once, around 15 minutes every three weeks. Does take a long time, if you attempt, make sure to have atleast 3-7 hours aside.well depending on your tools and know-how. Set the amp motor to run at full speed, and when you do this, the amp meter is supposed to read between 8 to 15amps. The air flow from the vents is choppy and not smooth. Dash vents, floor vents, defrost, etc). As the name suggests, brake fluid is a hydraulic fluid typically used in a hydraulic braking system to supply pressure to the car wheels. If youre a DIYer, replacing this component can be pretty easy. I tshold tell you on the truck there should be a sticker underhood with charge amount. When this component is faulty or clogged, it will be difficult to collect air. Turn on the multimeter and insert the probes into the connector, one at each point making sure the metal part of probes dont touch each other. Shake the canister briefly and release the refrigerant into the system until the recommended pressure has been achieved. For more questions on why your vehicles dashboard air vents are not working, you can contact us via our email address or the comment section below. 2007 FORD EXPEDITION; 140,000 MILES; Recently, the front ac will stop working. There are many reasons why air conditioning may not be working properly on your Chevy Tahoe. A knocking noise from behind the dashboard could be an indicator of a bad blend door actuator in your Tahoe. If he is not in the garage fixing challenging mechanical problems, he is writing automotive repair guides, buyers guides, and car and tools comparisons. Recharged With More Air Conditioning Problem For a better experience, please enable JavaScript in your browser before proceeding. So, if your cars AC is not cooling as expected, ensure to check the air filter, among other related components. Since some OBD codes are manufacturer-specific, the scanner will be able to give you more accurate information if you enter more details about your Tahoe. I also tested the compressor switch which was good. The result is a defective compressor that can no longer be repaired. Your vehicles air conditioning system has an expansion vale or an orifice tube, depending on the model. If this is the case, carefully clean the vents with detergent and water solution using a foam paintbrush. Stop blowing/no air flow from ac vents or even defroster vents, etc but the rear continues and is good. 37 % of the time it's the. Also, the vents may be clogged up with dust or dirt over time, and this can be the reason for the problem. Dirty evaporator can also be the reason for AC problems on your Chevy Tahoe. I have a brand-new battery and alternator in it. You must replace it with one of the same amperage and therefore the same color. Illuminating the Rear Lock/Unlock Switch? Blend door actuator plays a role in controlling the temperature inside your Tahoe. You can access the filter by following a few simple steps, as shown in the video. If you are a DIYer, ensure to get a voltmeter to test for the blown fuse in order to replace it. Turn on the AC and set it to the coldest setting, and the fan speed to maximum. I recently purchased a 99 Tahoe which is in pristine condition, however on my way to work a few days ago the air conditioning was blowing ice cold then slowly faded away to just air. Although most of the dirt and other particles in the air are filtered by the cabin air filter, but some particles do escape and can cling to the fins of the blower cage. Though you will not damage your vehicle if you decide to drive with a bad ventilation system, however, you need to be aware of the probable factors that could have caused this problem, so you know if your car just needs a quick fix or not instead of unnecessarily inconveniencing yourself and also your passengers. We are an automotive mechanic blog that helps mechanics and car users to find the most recent and accurate technical and repair information for their cars. A knocking noise could be another indicator of a bad blend door actuator on your Tahoe, although its quite rare. The two most prominent symptoms of a clogged up evaporator on your Tahoe are: Cleaning the evaporator on Tahoe is not a simple task. This motor is a fan located behind the dashboard responsible for blowing the air through the vents. Any ideas? I am frustrated and stuck. Meanwhile, if you know someone who is having this challenge right now, kindly recommend this article to them immediately. Therefore it is generally recommended to replace the old blower motor in Tahoe as well when replacing the resistor. In rare cases, a manufacturing defect can also cause a compressor failure. One of such malfunction is the impact it has on the air conditioners ability to cool properly. Immediately you are done with this, you will notice a better performance of your vehicles ventilation system. Blown fuse Trust me I have checked all but get nothing no matter what button I turn on any level. The operations can be altered by a simple electrical fault, especially a blown fuse. If this is the case, you can start with the fuses at the underhood fuseblock. If you dont service the AC system in your Tahoe for a long time, the refrigerant level will eventually get so low that the system loses its cooling capacity. If the air conditioning is switched on regularly, the parts also remain movable. The AC blower motor is not part of the regular maintenance on Tahoe, you replace it when it dies. My Air Connditioner Is Not Cooling. The most common symptom of a faulty blend door actuator in Chevy Tahoe is a slight clicking sound (or other unusual noise) repeatedly coming from under the dashboard. Wednesday, February 22nd, 2023 AT 4:03 PM, Thursday, February 23rd, 2023 AT 10:46 AM. Check the owners manual of your Tahoe or the fuse box cover to find the exact location of the fuse for the blower motor. You can recharge your AC through the low-pressure port with a do it yourself AC recharge kit. Keep in mind that reduced air flow doesnt always indicate a problem with the blower motor, as it can also happen due to a clogged cabin air filter, dirty evaporator, or a bad mode door actuator. So, you will most likely experience a situation where the front AC blows cold, the rear AC blows hot, and vice versa. 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