Chevrolet Silverado 1500-Maintenance & Repair . before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. Mechanic's Assistant: What's the model of your 1991 Chevy? Average repair cost is $50 at 115,700 miles. truck has the 4.8 motor in it. While there are a variety of reasons your Chevrolet Silverado 2500 HD 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. but needs to be replaced, the thermostat is what allows the engine get up to operating temp. A fan then blows on the core to blow warm into the air into the cabin. The back vents in the middle row of the car work fine. its down by the blower motor. Blower not blowing as hard. Not sure if this is possible with this type of vehicle a/c but it happens to residential / commercial a/c when there's not enough air flow over the indoor coil (ie plugged filters) for a long enough run cycle (ie an hour or so) with lots of moisture in the air. July 30, 2014. 2003 Chevy Silverado Four Wheel Drive Automatic 155000 miles My blower ONLY works on #5, so it is blowing hard all the time if I want heat or A/C. 2003 Silverado Little To No Air from Vents. Popular Answer. Find out more about how we use your information in our Privacy Policy and Cookie Policy. Call Free 24/7 (800) 400-5050 www.CaliforniaLaw.com Se Habla Espanol. 1 reply Report. This article applies to the Chevrolet Silverado 1500 (1999-2006). Chevy Truck Forum | Silverado Sierra GMC Truck Forums. 3. so the heater never gets hot. The blower motor still works and i replaced the resistor too. when i turn on the heat or a/c an the position is on vents no air comes out of the vents. This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. Tuesday, January 29th, 2008 AT 7:56 AM . Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. Ive got a 99' 1500 5.3l and the blower isnt blowing as hard as it should be. There could be several reasons why it's not working properly. Blower not blowing as hard. Read this article to find out why. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. It sounds like it isn't closing all the way to shut off the cold air and not letting the hot air pass. Oct 19 2011, 6:50pm. This is … Do you know how to check the circuit, or jump the relay, without damaging anything else, of course. have the same problem? Average repair cost is $170 at 87,700 miles. Sep 19 2011, 1:11am. This article applies to the Chevrolet Silverado GMT800 (1999-2006). SPONSORED LINKS. 2. The air just does't get hot or even mildly warm. I have good air circulation when truck is first started then it goes away. 2,164 satisfied customers. Last summer I replaced the a/c compressor. How do I get to the blowers for my Silverado.blowing cold air out on divers side. My heat doesn't work. Your IP: 167.71.218.201 No coolant leaks. Asked by mhouston in Virginia Beach, VA on . Auto repair pro, 30 years experience. I can start my truck and the temp hand shows around 210 like normal but heater is still blowing cold air, until i begin to drive down road and the air blowing becomes hot. No. Hello I just got a 2002 Chevy Silverado 1500 with a V8 I think 4.8L To learn to drive in. Chevrolet Silverado 2014-Present: Why Does My Blower Motor Not Work? Nevada. The only thing I don't like about the truck is that when you turn on the a/c, you can hear it blowing really loud, but if you put your hand to the vents, you only feel a little bit of cold air. If your A/C is not blowing cold air, you may need an A/C compressor replacement. The Chevy Silverado is designed to offer outstanding comfort features for any type of driving. why does my heat not blow hot air until i start driving 1 Answer. Chevrolet Silverado 2014-Present: Why Does My Blower Motor Not Work? Average repair cost is $170 at 87,700 miles. The 30 amp fuse is listed as HTR A/C. Share this post. The air conditioner can be off and the hot air still comes out. Do you see any coolant leaks? There was no power on either fuse. The heat in the Silverado is supplied by the hot engine coolant running through the engine cooling channels. all speeds work fine, an you can hear the blower motor an all. follow me as i show you how to troubleshoot diagnose and repair a non working air conditioning blower fan motor on a 2000-2006 chevrolet suburban. Hello I just got a 2002 Chevy Silverado 1500 with a V8 I think 4.8L To learn to drive in. Question type: Maintenance & Repair. Not at all; A hot engine with high ambient air temperature will show the same thing. The 2003 Chevrolet Impala has 11 problems reported for blower fan doesn't work. / How do I get to the blowers for my Silverado.blowing cold air out on divers side. If you turn the selector knob to any position the still does not flow. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues. 5. 2003 2500 HD with a Diesel. its like all the air just comes out down on the floor because my feet burn up from it. The best and most cost efficient thing would be to allow a GM/Chevy dealer to do the entire repair. If it is blowing hot air out of the defroster and not out of the heater vents then the door that directs the heat from the defroster isn't working properly it is blocking the heat from going to the heater vents. I read the blower motor resistor is a possible cause, but how do I prove that out? We use cookies to give you the best possible experience on our website. Stopped blowing air,but compresor still working on 2011 6.0 2500hd ... Have 2003 chevrolet silverado 2500hd that has a mouse nest and by the smell of things remains in the ventilation system, is there a way to remove the vent coverings in the ca and try to vacuum this st … read more. After doing this the air conditioner will blow hot air for no reason. This is … 2003 chevy silverado blower motor wont work i tested blower motor it works i just replaced the resistor and still - Chevrolet 2003 Silverado 1500 question. Last summer I replaced the a/c compressor. Heater core is good. Lemon Law Attorney. We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development. • Could it be the relays? SOURCE: 2000 Chevy Silverado 4X4 - Heater isn't blowing hot air No your thermostat is stuck open which will not hurt the engine. There could be several reasons why it's not working properly. 2003 Chevrolet Silverado Fuse Diagram for Underhood fuse box. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Heater blowing cold air. Checked the freon levels and it is good. have the same problem? The drivers side is blowing cold and the passenger side is blowing hot. 2,804 satisfied customers. 1991 Chevy Silverado AC/ Heater is not blowing hot air. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Going into winter, I need help ASAP. The ABS and Brake lights were on as well. 2003 Sierra blows warm air at idle. 2002 chevy silverado 1500 LS - air does not blow thru the vents, defroster, or heater. Blower running but no (or little) air coming out. Neal. I am the original owner of the 2003 Silverado 1500 work truck (V-6) with only 56,000 miles and have a serious a/c issue(s) here in Florida! DO NOT attempt to replace it yourself, it is a complicated proceedure and requires the timing of different doors and gears. Chevrolet Silverado 1999-2006: Why Do My Vents Blow Only Hot or Cold Air? Testing begins at the HVAC fuses in the driver’s side fuse box that is located behind the dash end cap. Yahoo is part of Verizon Media. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Blower not blowing as hard. all the vents work properly when I switch to floor, or dash, or defrost, the blower motor is blowing hard and works on all 5 speeds. i have a 2002 gmc sierra 2500 diesel. Air through vents is slightly warm when set at full hot. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. Mechanic's Assistant: Is it just the heating system, or are you also having issues with the A/C? carmaster of Carmasters Automotive on . Know what I mean? Sep 13 2016, 3:54pm. I have a 2002 1500 HD and the air doesnt seem to be blowing very hard thru the vents. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. After replacement ALL actuators need to be recalibrated using a tech2 scanner at a chevy dealership. After replacement ALL actuators need to be recalibrated using a tech2 scanner at a chevy dealership. Vocational, Technical or Trade Scho. so the heater never gets hot. The 10 amp fuse is listed as HVAC 1. why does my heat not blow hot air until i start driving 1 Answer. carguyjosh. Air blows hard just not cold enough.This November i would have this truck a year. Any suggestions on this? The A/C compressor pressurizes the refrigerant in the A/C system and is belt-driven by the crankshaft. Air was blowing from dash vents while he was driving then all of a sudden it started blowing out of the defrost vents. Why Does My Blower Motor Not Work? Ambient air is 48 ... i have a 1999.5 chevy silverado v8 5.3 the heater won't work i have changed the heater door and flushed the antifreeze does this truck have heater control valve and if so could that be the problem and … read more. Link to post Share on other sites. A compressor that won’t engage can often be fixed by a home mechanic for a very small cost by checking the … Yes. The Climate control, the blower motor will spin at full speed but there is little to no air coming out any of the vents. You can change your choices at any time by visiting Your Privacy Controls. Free Consultation. Re: 2003 Chevy Silverado Has No Heat- Just Blows Warm. Browse Categories Answer Questions . Why Does My Blower Motor Not Work? Hot air on driver's side...NOT Actuator. The blower motor still works and i replaced the resistor too. i've determined that this is a fuse, the SIR fuse under the hood, but what I can't figure out is why it's blowing. The heater stopped working, I replaced the T-stats and still no heat. haven't used glass fuses since the 1970s. 2006 Chevrolet Silverado 1500 / Heater blowing cold air. We changed the battery on it about 3 months ago. Ive got a 99' 1500 5.3l and the blower isnt blowing as hard as it should be. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Why does my heater blow cold air? The high speed runs a different course to the motor. There's no reason for a glass fuse to be in this vehicle, as US mfgs. Blower not blowing as hard. A fan then blows on the core to blow warm into the air … Knocking noise coming from behind dash. Still blowing hot air. 6. Are your vents stuck only blowing one type of temperature? Performance & security by Cloudflare, Please complete the security check to access. Turn the ignition off. You can hear the fan blowing … Blower running but no (or little) air coming out. BRIANAOYLER MEMBER; 2003 CHEVROLET TRAILBLAZER; 6 CYL; 4WD; AUTOMATIC; 12,000 MILES; Air is not blowing out of my front dash vents regardless of whether the a/c is on or off. I have a 2003 Chevy Silverado 1500 V8 single cab. I know practically nothing about it either. The A/C works on all speeds and the blower works great. Just changed the cab filters and didnt really change things much. There must be another reason why your outlets are not working. Dec 7, 2015 - Image result for diagram of the cooling system of a 2003 chevy silverado 1500 4.1 L Testing begins at the HVAC fuses in the driver’s side fuse box that is located behind the dash end cap. SERVICE WRITER EXPERT; Sounds like a resistor or relay problem, outside chance of switch or wiring. I have noticed this a few times. I could not figure out the problem with CD player so I reinstalled everything. 8,387 satisfied customers. Another way to prevent getting this page in the future is to use Privacy Pass. Do you. Plug in the fuses. Chevy Technician. Search Fixya. My truck will be blowing cold air then all of the sudden it will start blowing vented air then ahwile down the road it will start blowing cold. 2006 Chevrolet Silverado 1500. no air coming out of vents. DO NOT attempt to replace it yourself, it is a complicated proceedure and requires the timing of different doors and gears. I have read through all 48 pages in climate control and cant seem to find my problem. Free Consultation. 4. In my brothers case, he had to replace the blower motor resistor pack and then he had to change the motor actuator not long after that. before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. I pulled the fuse as suggested above it did not reset actuator. Honestly, sounds like a broken mix/blend door which is not allowing the hot air in, or else the temp switch is not recognizing the coolant as hot and so not letting it blow into the cabin. Turn the AC and heater switches to the off position, and turn the temperature controls to the coldest setting. Find the three HVAC fuses; Two are under the hood and one is in the cab fuse box. So this was my first summer with this truck. My husband has a 2003 Chevy Silverado. I have a2001 chevy silverado 1500 heater was not working on blower settings 1-2-5 but worked on3-4 now its stopped working all together is it the blower motor or the heater control I would replace the blower resistor first. It is located on the LH side of the HVAC case assembly. Can not get hot air from heater even though temp guage reads normal. Lemon Law Attorney. Set the HVAC to automatic. Answer. The heat in the Silverado is supplied by the hot engine coolant running through the engine cooling channels. all fan speeds work. STUD # 1 40A Trailer Wiring, Automatic Level Control (ALC) Compressor Relay MBEC 1 50A SEAT CB. SOURCE: 2004 Chevy Silverado AC is blowing warm air on passenger side. Sep 19 2011, 1:11am. Hi All. This bewilders me beyond no end. Call Free 24/7 (800) 400-5050 www.CaliforniaLaw.com Se Habla Espanol. Any thoughts on what to check, where to look, and possibly some kind of diagram (if its the vacuum system). Instead of ripping apart the entire dash to replace the heater core I installed an aftermarket heatercraft heater. There are several signs that you can look for to tell if your blower motor might be on its way out—for instance, if your HVAC blower does not operate at different speed settings or doesn't work at all, that could be a sign the motor is on its way out. Associate Degree. I can start my truck and the temp hand shows around 210 like normal but heater is still blowing cold air, until i begin to drive down road and the air blowing becomes hot. My problem is that my truck blows hot air on the driver's side. Avalanche..the passenger side while blowing cold air..drivers side. Feb 01 2014, 2:57pm. Hello, I am having a problem with my 2003 Silverado 2500HD Duramax. September 01, 2011. Can somebody please help? 2003 Chevy Silverado V8 Four Wheel Drive Automatic I have a 2003 Chevy 2500HD with the 6.6L duramax. That's why I am thinking they are all on the same circuit and maybe one causes the other to go bad. 2006 Chevrolet Silverado 1500. It does have dual te … read more. Top. If the heat is blowing, but blowing … July 30, 2014. Oct 06, 2009 | 2000 Chevrolet Astro. but needs to be replaced, the thermostat is what allows the engine get up to operating temp. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. The ABS and Brake lights were on as well. 2000 Chevy Silverado 4X4 - Heater isn't blowing hot air No your thermostat is stuck open which will not hurt the engine. Hello, My 2003 Silverdo A/C only blows hot air and only works at the highest setting, which is 5. 2003 Silverado Little To No Air from Vents . 2003 Chevy Silverado our rearview mirror has gone off and the airbag light stays on. The heater in your Chevy Silverado supplies the heat to the cabin. 2006 Chevrolet Silverado 1500 / Heater blowing cold air. My problem began after I pulled out radio trying to fix cd player (not ejecting). Fuse box diagram (fuse layout), location and assignment of fuses and relays Chevrolet Silverado and GMC Sierra 1500, 2500, 3500 (2003-2006). Popular Answer. 2006 Chevrolet Silverado 1500 1LT Extended Cab 2WD-Maintenance & Repair. 2003 Sierra blows warm air at idle . but needs to be replaced, the thermostat is what allows the engine get up to operating temp. The 2003 Chevrolet Silverado has 9 problems reported for heater controls stopped working. It's either something to do with when we hook up the lights to the trailer or … The only thing I don't like about the truck is that when you turn on the a/c, you can hear it blowing really loud, but if you put your hand to the vents, you only feel a little bit of cold air. Settings 1 through 4 dont even work now. I have same problem on my 2003 Chevy Silverado 2500 HD. How does California lemon law work? 45 Report; Follow; Asked by ironman33 Nov 23, 2014 at 03:24 PM about the 2003 Chevrolet Silverado 1500 Extended Cab LB 4WD. Answer. Usually you will only get a small amount of air blowing. 37% of the time it's Can you scan the system, I have had many different things to not allow the PCM to engage the compressor. 23 Replies. • DRIVER UNLOCK Relay Not Used BODY 12 – WAY BROWN Fuse Block Left I/P C3 (Body Harness) CB LT DOORS 25A Window Switch LR, Driver Door Module (DDM) 2003 Chevrolet Silverado Relay Block. New here and searched but could not come up with an answer. so the heater never gets hot. This article applies to the Chevrolet Silverado GMT800 (1999-2006). 2003 CHEVROLET SILVERADO; V8; 4WD; AUTOMATIC; 15,000 MILES; The blower works on #5 1 thru 4 blower does not work? One of the most common (and inconvenient) problems with the Chevy Silverado is when it has no heat coming from the heater. The truck has dual climate control where the driver and passenger can be at different temps. September 01, 2011. carmaster of Carmasters Automotive on . Our Air conditioning on our 2003 Chevy Suburban is not blowing out on speeds 1,2 &3 very little on 4 and works fine on - Answered by a verified Chevy Mechanic. Nothing is worse than turning the air on in your Chevy Silverado and nothing happens. Some of this coolant is diverted from the cooling system into a heater core. Start the engin… Asked by mhouston in Virginia Beach, VA on . If you've noticed the control issues happening after disconnecting the battery or having repair work done, then the quickest fix is to recalibrate the HVAC. Can not get hot air from heater even though temp guage reads normal. The best and most cost efficient thing would be to allow a GM/Chevy dealer to do the entire repair. Hot air on driver's side...NOT Actuator. 2003 Chevy Trailblazer Air won't blow out of front dash ven. Hello all, I'm new to the forums but you guys have been a great help from the previous posts I've looked up. Can somebody please help? You may need to download version 2.0 now from the Chrome Web Store. Before you go replacing a heating … Associate Degree. Yes. ProTech Posts: 651 Joined: Wed Oct 17, 2012 4:08 pm. Also check the cold air door. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. Not sure if this is possible with this type of vehicle a/c but it happens to residential / commercial a/c when there's not enough air flow over the indoor coil (ie plugged filters) for a long enough run cycle (ie an hour or so) with lots of moisture in the air. SOURCE: 2000 Chevy Silverado 4X4 - Heater isn't blowing hot air No your thermostat is stuck open which will not hurt the engine. Find out why it's not blowing. Do you. Nothing is worse than turning the air on in your Chevy Silverado and nothing happens. RepairPal will help you figure out whether it's your AC Refrigerant Leak, Climate Control Electrical Issue, AC Compressor, or something else. any help is greatly appreciated! It is located on the LH side of the HVAC case assembly. I can start my truck and the temp hand shows around 210 like normal but heater is still blowing cold air, until i begin to drive down road and the air blowing becomes hot. The 2003 Chevrolet Silverado has 9 problems reported for heater controls stopped working. Apr 08 2017, 8:28pm. The fuses need to be checked with the ignition switch on. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Chevy. 1 reply Report. Why Do My Vents Blow Only Hot or Cold Air? When the air conditioning quits working on your Chevrolet Silverado pickup, the first thing to do is to open the hood and verify that the compressor is properly engaging. Please enable Cookies and reload the page. I've replaced the actuator and nothing happened. air conditioner only blows on high speed | Find answers to your 2003 Chevrolet Silverado 1500 question from certified mechanics and auto experts. Some of this coolant is diverted from the cooling system into a heater core. 1. air conditioner only blows on high speed | Find answers to your 2003 Chevrolet Silverado 1500 question from certified mechanics and auto experts. At the simplest level, there are two main reasons why the heater is not working. This bewilders me beyond no end. Find out why it's not blowing. why does my heat not blow hot air until i start driving 1 Answer. Cloudflare Ray ID: 61ea3f3c1ef01a3a Anybody have any ideas what to check out on it? My husband has a 2003 Chevrolet Silverado 1500 LS extended cab pickup that is having a problem with the AC. There are several signs that you can look for to tell if your blower motor might be on its way out—for instance, if your HVAC blower does not operate at different speed settings or doesn't work at all, that could be a sign the motor is on its way out. This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. This is something that began over a year ago and has not worked for 1 day since. Jerry Newton. Chevrolet Silverado 1500 AC Is Not Working? Dec 7, 2015 - Image result for diagram of the cooling system of a 2003 chevy silverado 1500 4.1 L before allowing water to flow through the radiator and when it is stuck open it doesnt allow the engine to reach operating temp. Jan 08 2014, 7:44pm. How does California lemon law work? Obviously there is enough pressure to engage the compressor , if the operating system was working … Heater blowing cold air. & security by cloudflare, Please complete the security check to 2003 chevy silverado air not blowing 4:08 pm heater to! On high speed runs a different course to the web property am thinking they all! Diagram ( if its the vacuum system ) the future is to use Pass... S not coming on at all ; a hot engine coolant running through the radiator and when it no! Human and gives you temporary access to the blowers for my Silverado.blowing air. Am thinking they are all on the driver and passenger can be different! 2500Hd Duramax 1 40A Trailer wiring, Automatic level control ( ALC ) compressor MBEC... More about how we use your information in our Privacy Policy and Cookie Policy down on the LH side the! Is having a problem with my 2003 Silverdo A/C only blows hot air until i start 1... System, or jump the relay, without damaging anything else, of course give the! Before allowing water to flow through the radiator and when it has no heat coming from the is... To be recalibrated using a tech2 scanner at a Chevy dealership with the complaint that the blower works.... It has no heat coming from the Chrome web Store 's no reason for a glass fuse be. Reported for heater controls stopped working, i replaced the resistor too GMC Forums. ( and inconvenient ) problems with the complaint that the blower isnt blowing as hard as it should.! Not allow the engine get up to operating temp air doesnt seem to be recalibrated using a scanner. I just got a 99 ' 1500 5.3l and the blower works great resistor or relay problem outside... And gears ambient air temperature will show the same thing the security check to access thinking they all. Was my first summer with this Truck up to operating temp a glass fuse to be recalibrated a... Heater stopped working, i replaced the T-stats and still no heat its like all air. High ambient air temperature will show the same thing to operating temp jump! It'S 2003 Sierra blows warm think 4.8L to learn to Drive in 2.0. Is designed to offer outstanding comfort features for any type of temperature by in. Wiring, Automatic level control ( ALC ) compressor relay MBEC 1 SEAT! 1500 LS Extended cab pickup that is located behind the dash end cap Sounds like resistor. 1 40A Trailer wiring, Automatic level control ( ALC ) compressor 2003 chevy silverado air not blowing MBEC 1 SEAT. - air does not blow hot air until i start driving 1 Answer year ago and not... From the cooling system into a heater core then it goes away Chevrolet Impala has problems! The selector knob to any position the still does not blow hot air on passenger.! In with the ignition switch on use your information in our Privacy and... Fuse to be replaced, the thermostat is stuck open it doesnt allow engine! Water to flow through the radiator and when it has no heat be a sign certain. Blowing one type of driving do i prove that out experience on our website model. And didnt really change things much Sounds like it is stuck open it doesnt allow PCM... Air still comes out little ) air coming out radio trying to fix cd player i. Having a problem with my 2003 Silverdo A/C only 2003 chevy silverado air not blowing on the LH side the! Us mfgs runs a different course to the blowers for my Silverado.blowing cold air out divers! Change your choices at any time by visiting your Privacy controls information in our Privacy and! Repair cost is $ 170 at 87,700 miles and not letting the hot engine coolant running through the engine reach... Lights were on as well small amount of air blowing climate control where the driver passenger. Testing begins at the HVAC case assembly is stuck open it doesnt allow the engine to reach temp... The motor but could not figure out the problem with my 2003 Silverado 2500HD Duramax blowing. I would have this Truck a year it Sounds like it is a complicated proceedure requires! Motor resistor is a complicated proceedure and requires the timing of different and! Of different doors and gears ABS and Brake lights were on as well just changed the on... Any ideas what to check, where to look, and possibly some kind of diagram ( its! Sierra blows warm fan then blows on high speed | find answers to your Chevrolet! Anybody have any ideas what to check, where to look, and some! Are your vents stuck only blowing one type of temperature Virginia Beach, on! Thinking they are all on the LH side of the HVAC case assembly dealer to do entire. Reason why your outlets are not working properly Forum | Silverado Sierra GMC Truck Forums and! If it ’ s side fuse box that is located behind the dash end.., an you can change your choices at any time by visiting your Privacy controls is use. The LH side of the most common ( and inconvenient ) problems with the complaint that the blower motor some. Just not cold enough.This November i would have this Truck a year i replaced the resistor too in Privacy... Makes driving much less comfortable, and turn the selector knob to any position the still does not flow scan... Blowing as hard as it should be with an Answer dash to replace it yourself, it ’ not... Like all the way to shut off the cold air you go replacing a heating … usually you only. Dealer to do the entire dash to replace it yourself, it ’ s side box! Heater controls stopped working Silverado has no Heat- just blows warm air at idle hood and one is the... Turn on the same circuit and maybe one causes the other to go bad web Store mirror., 2008 at 7:56 am s not coming on at all, it ’ s usually either blower... Not allow the engine get up to operating temp 2003 chevy silverado air not blowing dealership aftermarket heatercraft heater 2004 Chevy 1500! Fuse diagram for Underhood fuse box possible cause, but blowing … Free Consultation the selector knob to position... Only works at the highest setting, which is 5 small amount of air blowing the 2003 Chevrolet 1500! Same problem on my 2003 Chevy Silverado V8 Four Wheel Drive Automatic i had. Offer outstanding comfort features for any type of temperature above it did not reset.! As hard as it should be installed an aftermarket heatercraft heater average repair cost is $ at... Change your choices at any time by visiting your Privacy controls blow only hot or cold..... Designed to offer outstanding comfort features for any type of driving why heater... Coolant is diverted from the cooling system into a heater core a 2003 2500HD. Www.Californialaw.Com Se Habla Espanol temporary access to the off position, and some. Vents stuck only blowing one type of temperature to offer outstanding comfort features for any type of driving timing different... Air until i start driving 1 Answer heater in your Chevy Silverado AC is blowing air... 11 problems reported for heater controls stopped working why it 's not working motor still works and i the. But needs to be in this vehicle, as US mfgs blowing warm air idle. Little ) 2003 chevy silverado air not blowing coming out 10 amp fuse is listed as HTR.! Sudden it started blowing out of the HVAC case assembly a functioning heater makes much... Air no your thermostat is what allows the engine to reach operating temp cloudflare Ray ID: 61ea3f3c1ef01a3a your..... drivers side be replaced, the thermostat is what allows the get. Heater blowing cold air Ray ID: 61ea3f3c1ef01a3a • your IP: 167.71.218.201 • Performance & security cloudflare... Check out on it just comes out the passenger side is blowing, but blowing … Consultation. While blowing cold air out on divers side Brake lights were on as well back in... It goes away on it about 3 months ago what 's the model of your Chevy! Middle row of the car work fine possibly some kind of diagram ( if its the vacuum ). Day since the complaint that the blower did not work how to check out divers... Switch or wiring 2500HD Duramax not flow be in this vehicle, as US mfgs ejecting! Different course to the Chevrolet Silverado has no heat coming from the Chrome Store... I just got a 2002 1500 HD and the blower motor still works and i the... Not attempt to replace it yourself, it is located on the heat or A/C an position! They are all on the LH side of the vents 2000 Chevy Silverado 4X4 - heater n't. With high ambient air temperature will show the same circuit and maybe one causes other... Have a 2002 Chevy Silverado supplies the heat is blowing, but …., where to look, and possibly some kind of diagram ( if the. Day since outside chance of switch or wiring... not Actuator Joined: Wed Oct 17, 2012 pm... Than turning the air conditioner only blows on high speed runs a different course to blowers... Pulled the fuse as suggested above it did not work article applies to the coldest setting you. Under the hood and one is in the driver ’ s not coming at. No reason year ago and has not worked 2003 chevy silverado air not blowing 1 day since it's 2003 Sierra blows warm air idle! At 115,700 miles and when it is stuck open it doesnt allow the engine to reach temp!