For people who have children or pets, then having A/C is a must. 1st Generation S-series (1983-1994) Tech. Bad Relay (Electrical Issue).
The damper that controls where the air goes is probably controlled by a vacuum source. OK, I showed this link to my mechanic and he agreed that this could be a possibility, so pulled a vacuum and recharged the system. So unless your vehicle has similar mileage, it's not likely but it's worth checking. Due to high pressure, the air surrounding the car will be sucked into a duct in the front and a few small ones along the grill located above the bonnet when the car moves at high speeds. When I came back the defrost was blowing strong. Did you take it to a dealership? You reach across and feel the air coming from the vent on the passenger side its cool. Strangely enough, 3 trips later and it started working 100% again. Silverado no air blowing through vents near. Added some JB weld and put it all back together. You can gamble with a resistor pack, but it may go out again. However, you can fix this problem yourself by unplugging the HVAC fuse under the hood of the vehicle. 01-09-2010 07:51 PM.
The compressor can only process gas, so trying to pump anything else will cause your air conditioner to work harder, potentially causing damage to the unit. Same issue and no fix. The heater vents work better than the defrost. I would follow teh above advise on checking teh vacum lines and see if you dotn have a leak somewhere. However, they will be able to sell you a recharge kit for your car. AC wont blow through front vents. Should I Check The A/C Before Buying? What is the best way to get to all of that? Disconnect the line going to the ESOF solenoid and plug it, if you pump stops running then your ESOF solenoid has an internal leak. In this article, we will take a closer look at why you would need to do an A/C reset and other ways to do it. Not only that, but this part is also prone to work erratically or even stop functioning when the electric motor is in a state of exhaust caused by excessive and prolonged operations. Either way, when you find your air conditioner not blowing air or not turning on, it can be extremely frustrating. Your vehicle's HVAC system pulls air from the outside of your car and pushes air outside of your car. I had mine apart when I was fixing the A/C in my 87 4Runner.
But when it's not working, is there a way to reset it without making a trip to the dealership? Or is it tucked up under something in a very difficult to reach spot? Lemme try to ask them what the actual airflow restriction specifically was. There was someone recently that had the common "defrost only" feature on their A/C and it turned out to not be a vacuum leak. Locate the blower motor in your Silverado 1500, typically located under the passenger side dashboard. Faulty Cooling Fans. We got our first snow of the year and was dreading not having defrost. The air still randomly switches to defrost only, and sometimes I can switch it back right away other times it won't switch back for twenty minutes with me cycling through the controls over and over. It could maintain the vacuum (with the pump running way too much), but as soon as the truck was turned off, it would revert back to defrost until vacuum built back up. Air only blows through top dash vents. I'll check it again, but is this fixable from the inside glove box or is this something that I have to do outside the truck? Let's take a look at the most common culprits: Refrigerant Leak. Do you have air flow out of any vent when the blower is on high?
Lets take a look at some of the causes for air blockage. Chevy Silverado and GMC Sierra Climate Control. You might be surprised at what a small act of maintenances can do to a car built up with a thousand pieces. Unfortunately, if it's not working, there's not much you can do except take your car to a mechanic. Its not slowly seeking out but its not fully open. Red Angel A/C Stop Leak and Conditioner comes in an easy-to-use container with an attached coupler for the R-134a air conditioning system in your vehicle. I have been working on getting the AC and Heat to work correctly, this forum has been lots of help. Its kind of a pain to replace the actuator and costs about $50 or so. Silverado no air blowing through vents home depot. Someone's foot could have kicked it. Air, water, dirt and oil cause system contamination. With the winter about to hit I definitely don't want to deal with this randomly, so as soon as I catch it again I'll stop by the dealer and post updates.
Unfortunately, A/C repairs can be expensive. You might be able to clear out your heater core passages by flushing them. There is a free fix but I am not certain that this is your problem. When you don't replace your coolant, it can carry debris that causes those passages to rust or clog.
I checked that spilter back in the summer, no leaks. Oh and it isnt just if i am at WOT or anyhting, it is at random rpm acceleration. I did not see where the motor had any adjustments to prevent this from recurring. Is Fixing Car A/C Worth It? Silverado no air blowing through vents removal. I was trying to replace the cabin air filter. So, to give the blower resistor total control of airflow rate and strengthen the cabin air, have it replaced at a professional repair shop. I cannot remember for sure what the problem was, but this was the only time I remember it not being a vacuum leak. The valves in your heater core open to let warm air into the vehicle.
TRY THIS STUFF FIRST! 10 amp fuse for ac/heater is good. Obstructed Air Intake. If you would like to provide me with your VIN I would be happy to look into recall information for you. Truck Heater Not Working? Here are Some Common Reasons Why. If you're not sure whether or not the AC is worth repairing, speak with a mechanic to get a more accurate estimate. Maybe the vacuum line didn't get hooked back up to the new engine? Just to clarify, the blend door and blend door actuator (BDA) are temperature control mechansims and have nothing to do with air flow or direction. Another sign of a faulty relay is if you feel warm or hot when you touch it, it indicates that the relay has absorbed too much heat as a result of the breakdown. I bought my Toyota used so, that is probably the you.
For example, it may not be worth repairing the A/C system for vehicle owners living in regions where the temperature never drops below 50 degrees Fahrenheit. You can try replacing the servo first.