I turned on the inside fan and nothing happened. I can feel warm and cool air if I adjust the temperature but not much comes out. When I push in the ac button it does not light up. A pure guess on my part it's the relay but not sure where it's located. Have not checked the fuses yet either.
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Does the passenger side fan in the engine compartment come one when the a/c is on? There are relays and such that make them work not just a positive and negative. Would check that out if that is working. Did you burp your cooling system after all these items where replaced? Simply remove cap when it's NOT HOT, and start it up let it get up to operating temperature, while doing this look and make sure that the radiator is circulating fluid inside it. After it's warmed up see if the fluid level inside the radiator doesn't drop some fill with HOT or WARM water NO COLD AT ALL, you can crack your heads, block, or head gaskets, not to mention burn yourself with the super heated steam produced from introducing cold water to a hot system. So you have filled up the radiator, now replace cap, let car cool off some 10 or 15 minutes. No go give it a try, if nothing else this is a all but free trick might be all that is wrong. Let me know if you have any questions about the above, also please let me know if this fixed your issue. Hope this Helps.
You need to turn off the button that say AC on it. You need to change the temperature and the fan adjustment. If you have the AC button turned on, the fans will blow cool air even though the heat is turned on.
The car overheats because the fan system is not working. The engine coolant sensor tells the computer to turn on the fan when it gets hot and also sends temperature readings through the computer to the heat gauge. Try turning the AC on if you have it--it should immediately start the cooling fan. If nothing, check the fan fuse and relay. It's also possible that the fan motor is frozen due to bad bearings. Try replacing the coolant temperature sensor to see if that restores the gauge readings. Hope some of this helps!
that year / series of GM sonoma and s-10 where famous for having clogged heater cores - is temp of hoses going in and out the same ? if not try to flush out ther core, if they are, ck to see if the hot water valve is woking, and finally operation of the doors inside the heater box itself
since the water pump was replaced, make sure you don't have an air pocket in the cooling system. flush your cooling system again. remember, if all was well before the tune up/preventative maintanance, it's within those items that were replaced. I don't think it's the condensor, thats a/c related, but the radiator and water pump, well those can cause overheating problems. when the system overheats, you will feel it in the ac.
Do not let this car over heat a blown head gasket will ensue. Locate and replace the fan relay, if that doesn't fix the problem unplug fan and use jumper wires to ground the plug then feed power to the positive side of plug to check fan, if that doesn't work replace the coolant temperature sensor located somewhere near the intake manifold or thermostat housing area.
you may want to check on the radiator fan. The AC has its own fan and once AC is on, the fan would help bring down the temperature. It is either the fan is not blowing or has become weak. You can check on the fan by pulling out the temp sensor on the lower radiator hose. The fan should blow at full speed when doing this.
Check on the water reserve the water inside it goes down, if not there may be a leak somewhere. Water vapor may be escaping and lessening the effectiveness of the cooling system. This may be a reason why the engine cools down after the AC fan is on.
Cooling Fan Malfunction. Your radiator fans are most likely not working. That's why the temperature is OK when you're driving full speed and the wind is cooling your radiator. You need to check and/or replace your cooling switch module and radiator fans (most likely it's the cooling module). If you were sitting idle or in stop-n-go traffic for an extended period of time, your car WOULD overheat because the fans aren't kicking in cooling your radiator - then you would see all of the cooling system water spill out of the coolant reservoir, before this would happen your temperature gauge would go to the red and the digital dislpay would flash a thermometer (indicating you're about to overheat in 2 mintues). I hope this helps someone out there - Yes, it happened to me in the middle of nowhere.
It does not actually cool the air, however it removes the heat from it (and without heat the air feels cool). As the air is blown around the car the AC system removes the heat from the air, and then it moves it to the condenser at the front of the car (infront of the radiator).
Now usually the car is moving forward, so that air flow will cool the condenser and then you can move more heat from the air inside the car and push it out the front of the car again. This is why, if you have a front wheel drive car, you will hear the cars fan start as soon as you turn the AC on.
Also the car will be much better at cooling the air that is recirculating inside the car (your a/c system will have a button for this) then if it tries to cool hot air from outside.
The long and short of it is that if you hop in a hot car, start the car and run the ac (even at full) it wont be cool straight away, it is mostly influenced by how much you are driving forward.
Try this. Start the car, turn the AC to recirculate the air, turn the AC on and go for a drive for 10 mins, pull over and wind down the window. Compare the outside air to the inside air, then you will see the difference.