Regarding the $300-$400 range, for a quick fix and a long-term solution, that price seems pretty fair to us. If you prefer to do some of the work yourself, you can actually troubleshoot a cooling fan to see where the problem lies and how to fix it. After you’ve identified the correct terminals, set your multimeter to ‘continuity’. Everything seems fine. to check this make sure the is hot enough for the fans to be commanded on by computer and check to see if you have voltage at relay and it has ground from computer . Second, look at the wires and identify which ones are power wires and which ones are ground wires to avoid any confusion. Interpreting this knowledge and reading the wiring diagram will, at the very least, help point me to the problem. The AC system depends upon being able to dissipate heat into the engine coolant. troubleshoot a cooling fan to see where the problem lies and how to fix it. Ensure that the wires are firmly attached and are not damaged. Also check the water temp switch on the right hand side of the radiator. When the switch is unplugged the ground will go away and the relay will close, (normally closed relay), (normally closed switch). I am patient and will continue to keep working on the situation. To prevent the engine from overheating and breaking, coolants are moving throughout the radiator and into the engine to keep the temperature at a workable level. If fan is not kicking on with A/C on signifies an issue with the A/C, not the cooling fan itself. If the temperature sensor is broken, it won’t be able to transmit the signals at the proper time to the ECU – and the fan won’t turn on. I did try the new one from Pep Boys that must also have been defective. Almost seems like it has got to be crud inside the radiator where this normally closed COOLING FAN SWITCH screws into and is not opening the switch circuit when the coolant reaches the correct tempture. After the engine has reached operating temperature, back probe the other wire at the connector. A radiator fan is imperative in keeping the temperature of the coolant low enough. The cooling fans on Chrysler cars are not particularly well-made, but that doesn't mean you can assume that they are broken the second the cooling system stops working. Cadillac Transmission Repair Cost – Avoid The 2016 Cadillac ATS! Thank you for putting into words how the relays work. The job of the radiator is to keep the coolant at the right temperature so that when it travels back to the engine, it is able to take on more heat, and prevent the engine from getting too hot. Fan has 2 sources of power, 1 which comes on by temperature and the other comes on automatically when … There are typically a few spots where the problem is originating from, such as the fan motor, thermo switch, wire, or relay. price can range from $300-$1,200 for a fix. I repaced the coooling sensor twice and both were no good, so I went to a diferent store to try another one. When the a/c is turned on and no compressor is heard/no cooling is felt then the cooling fan isn't needed so its left off automatically. Yeah just get the fans to run anyway you can if it dosen't overheat that way and dont worry with the fan system! If you detect zero, then your relay’s power pins have stopped working and you need to replace the relay. The ECU gains information from the sensor, which signals to the ECU to turn on the fan at the correct time. Ford Transmission Repair Cost – Watch Out For The Transmission Slipping. Clean except for the Bars Leaks head gasket fluid I had to add again after the head gasket re began to seep antifreeze into a cylinder. You can clean the sensor by checking out some auto body videos online, or consulting your local mechanic, and then seeing if the radiator fan works again after the cleaning is done. In older cars, this typically takes about 15-20 minutes for the engine to reach the right temperature. Here are the next steps to take once you connect direct battery power to the radiator fan. Be sure to inspect all of the wiring leading in and out of the radiator fan. If there’s a problem with the engine’s temperature, then this can damage the radiator. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem. Take the time to test relays before blindly changing them. A manual fan is connected to the engine drive pulleys and is controlled by a thermo fan clutch which senses radiator heat and engages when the engine is running at higher temperatures. I noticed my fan never came on even with the ac set on max. You may need to look at your vehicle repair manual to see if your vehicle has a 4-wire terminal or three terminals, with two for power and one for ground wires. Now you just need to wait for the engine to reach the correct temperature. First, you need to unplug the wiring connector. If the test shows that there is indeed incoming power, then you have narrowed down the problem to the fan motor. Overheating The possibilities are (from my research online): 1. If the wire stretches, the wire link could be broken and you’ll need to replace it. However, if your radiator fan doesn’t begin working with the direct power, then you need to make sure there’s no damage on the terminal and test for incoming voltage. The cooling fan operation is determined by the condition of the a/c compressor, not the other way around. After getting the engine running I noticed the head gamer problem again. The cooling fan should come on immediately or within the next couple of minutes. If you can’t figure it out, take your car to a mechanic right away so he can determine the issue. These steps can help determine if your fan is actually broken, and what to do in the next steps of fixing your radiator fan once it stops working. The mechanic might charge you an extra $100-$200 for the labor involved. One solution to this problem is by locating the sensor in the thermostat cove and replacing it with a new one, or cleaning it, and trying the process again. Insufficient Coolant. 3. If the fan comes on when the air conditioning is operating at maximum volume, but doesn’t run properly when the engine is warm or hot, then you might need to check the temperature switch. For this test, the only tool that you need is a test light. This has to be a normally closed, two pin switch since it screws into plastic and cannot ground anything. Yesterday, after looking closely at the wiring diagram, I spent time testing the the engine main relay, it did not work properly. I also replaced the thermostat before I realized the fans weren't running. Thank you all again for your help. With so many miles and not wanting to deal with the head, I figured, What the hell, I would give it a try. If this is the case, you could be dealing with a stuck-open thermostat – this means that there will be a continuous flow of coolant, causing a lower operating temperature. Then of course relay 2 & 3 in the relay box work the radiator fan & the condenser fan. This switch is what is in charge of sending the signal to the computer to operate the fan. If you don’t have resistance values, but you are able to deduct that the Ohms values remain the same during cold and hot temperatures, you should replace the sensor in order to fix your radiator fan. People often get confused about the cooling fan operation!! But should not overheat. They were fine. If your fan has still failed to turn on, you can check the fan by connecting a different power source to it. AC does not work when temp rises.39642.564946412 … Turn the air conditioning to the maximum setting – this should spark the cooling fan to immediately come on. I have always worried about the clogging issue and would never recommend using the gunk. If the belt/viscous clutch fan is moving enough air (assuming your car has auto transmission), electric fan won't run. Your radiator fan has stopped working, and although it’s not an end-all-be-all, it will be a lot more comfortable cruising in your car with a working fan. I flushed the system again before adding sealant once more. © 2020 Cash Cars Buyer. Thank you everyone and I will keep you posted of whatever my oversight has been. I have to leave the AC on in order to get the radiator fans to run. Set your air conditioning to the MAX setting and turn it on. Don't use bars leak it will stop up the radiator faster then eggs. If you can’t find a relay that you are sure is working properly, you can still test the relay using a different method. That one worked, like this Camry. No, only comes on when the coolant is too hot. Checked the relays, only found 3 of them, still not working. Unpluging the connector and then the fans run, is the same thing as opening the circuit!! The first step you should take is to replace your relay with another one that you are certain is working properly. The last case scenario when testing your radiator fan is when the fan doesn’t come on after the engine has been running for 20 minutes. I remembered my first or second car had a similar situation. I had no more time so I either drove with the heat or the AC on to keep it cool. ! 5. Set the … Once you switch your ac on, the fans must work immediately, if they do not then it could be your fuses or fan motors. First, you need to connect your test light to the battery ground. Your going to need to check for power at the fan, the fan can still be failed and spin just fine by hand, considering you dont have high or low I would lean towards a fan or fan connector concern. If you don’t want to buy a relay tester, you can purchase a digital multimeter that you can find in any electronics or hardware store. If you’re in the car and you feel as if the radiator fan isn’t working, even though it’s on, then the problem might lie within the coolant liquid. What a mistake. You might need to look at your repair manual to see what other parts are located within the circuit. I just had another look at my Camry. Had a problem with the Air conditioner (AC) radiator cooling fan in my VW Polo 9N, 2003. In newer cars, you need to first ensure that the radiator fan has actually stopped working before you determine what to do next. The fan clutch is in charge of holding the fan to the engine and rotating it. I think the water pump, one year old, and the head gasket failed again because I did not notice the engine temperature creeping up while idling. Electric radiator-fan motors are switched on either by the ignition switch - and run while the engine is working - or by a thermostatic switch. All you have to do is follow the instructions that come with the tool. The condenser fan (if it has a dedicated fan) or the radiator fan most always comes in (with AC on) when the compressor discharge pressure (or, alternatively, the liquid line one; look for where a sensor or a switch is located on the high pressure line) rises over an operative threshold. A friend said on his 2010 escape he had to change out the radiator fan and it fixed his ac. Thermostatically controlled motors do not work the fan until the engine coolant rises above normal operating temperature, and then switch off when it has cooled down again. Depending on if and when the radiator fan comes on will affect what you should do next, and if the radiator fan has stopped working. Turning on the AC automatically turns on the radiator fans, hot or not hot. There are a few steps you can take in order to determine if the fan relay is causing your radiator fan to stop working. Is it worth to buy a Toyota Camry 2010 with 152k miles for $5,000. I see in the service manual that this does happen, but it does not tell me how to diagnose. Electric Fan(s) not working, Checking the fan(s), relay, fuse and engine temperature sensor's. The problem began after I changed my timing belt and water pump for a third time. I looked it up and tried to explain it to him in my reply. Ok, didn't read down far enough,,,,i agree! May be your problem. good luck . If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. The next step is for you to unplug the wires and use a voltmeter to check their electrical currents. If your coolant level is low, then it might not feel as if your car is getting cool, even with the radiator fan turned on and working. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler. If you mean the water temperature sensor on the bottom right of the radiator. The radiator fan switch relay may not be supplying power to the fan. Thank you again for your considerate time. Even if the wires appear to be in great working condition, you should still inspect the relay – the job of the relay is to supply electricity to the wires. 3 people found this helpful. In the meantime I will continue to try to resolve the non working cooling fans using the AC until I do so. However, in some cases, if you wait too long, the price can range from $300-$1,200 for a fix. Head gasket (Kwik Fit checked for this, no sign of it, so highly doubtful) 4. I was frustrated and had very little time to work on the engine properly. Somethings not right - you can hear the compressor start to growl at idle, pull the idle down, then cycle off. How to Sell Your Car Using Social Media? This one I did not test earlier thinking it was not involved. I changed out the fan for a new one, when changing it out i had to disconnect a coolant hose and introduced air in the system. Overheating..it seems fans are not working radiator light..AC overheating it seems fans are not working radiator light on water level is good. SOURCE: cooling fans on 2001 chevy malibu will not come on unless ac on. circle with 3 dashes on. Next thing to check is for power at the fan … If your Aveo has a bad engine temp sensor the radiator fan won’t know to come … I want to know where the shut off switch is located at on my car. I was on vacation in January. The main fan is still working today. Try to grab the end and stretch it. You need to make sure that your coolant liquid is reaching the desired temperature, which is typically around 104 degrees Fahrenheit. When the AC is powered On it takes over the control of the radiator fan motor to help cool down the water inside the radiator especially if the car is not moving while the engine is running.. The fan belt is responsible for deriving power from the engine to transmit to the radiator fan. That piece was the first thing I replaced. 10 Smart Tips! I guess I will limp the car along for a while and try to solve the issue. Connect one lead to the power circuit and one lead to the power terminal. If I unplug the sensor the fans run. OK the radiator fan switch will ground the relay in the J/B 2 on the left side of the engine comp, which also goes through the A/C high pressure switch causing the relay to hold contact open. Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. Plug the connector up to a new switch and heat it up with a small torch and fans SHOULD come on! The car has 229,000 miles. Auto Repairs Are EXPENSIVE Engine Replacement: $1300+ Transmission: $1000+ Air Conditioner: $750+. Your engine temperature sensor is responsible for relaying your engine temp to the ECU. Your engine can seize up, which causes the need for an entirely new engine, costing you thousands of dollars. 3. No success, I tried switching each of the three of them separately. If the fan doesn’t come on, you need to look for a blown fuse or breaker. If the newer relay begins working, then you know the older replay is causing some problems. If the fans aren't supposed to come on when the CTS is unplugged, maybe just the sensor that tells the fans to come on when AC is turned on is bad....whatever sensor that is. 1. Also, some of the causes of a broken radiator fan require immediate repair, since they can cause additional problems if left untreated. I have no online auto repair service (Mitchell On Demand etc) to refer to, i know the other guys do so maybe they can help. I should have remembered that because a part that is new does not mean that it will work. All Rights Reserved. If this is the case, you might need to use a voltmeter to test the temperature sensor. Verify that the fans work by unplugging them and run jumper wires to the fan(s) from the battery. However, if there is an issue with the number of volts of electricity, then that usually means the wire needs to be replaced. Flushing is not good enough. If your coolant level is low there is a chance that you will get air in the system … The tempreture sending unit is close to the thermostat housing top radiator hose,and yes the fan not working and not cooling the radiator and the ac condenser,this will make it not run from being hot. I replaced it twice because I thought the first one was defective. If the radiator fan is not working correctly, your car can get damaged, and if you let it go too long without a repair, the fix can be thousands of dollars out of your pocket. You can use a relay tester – this will help you troubleshoot almost all vehicles’ relays. There are a few common reasons why your radiator fan is not turning on. Refer to the top or side of the relay to locate these terminals. Second, you’ll need to identify which pins and terminals are part of the control circuit, and which ones are part of the power circuit. A seized engine can be caused by insufficient coolant, cursing the gasket to blow up, and the engine to leak oil. Once you replace the relay, the radiator fan should start working again. That is just to help you figure out how I THINK it works. Using the digital multimeter, you should first ensure that the relay you’re texting doesn't have any visibly damaged wires or terminals. It clogged the brand new radiator. However, if your car has coolant in it, but still overheating, then the problem might be with the radiator itself. One way to check if fan is working at all is to turn on the AC. Fortunately for you, the average cost of a radiator fan is not very expensive. This small structure can wear out after prolonged use. Thermostat (but would this cause the fans and AC not to spin?) If either does not run, it's the motor. Yes, a broken radiator fan can cause the air conditiong to stop working. 2. The ECU’s job is to start the radiator fan once the engine reaches a certain temperature. As soon as you feel like your radiator fan has stopped working, or your car isn’t getting cool, you need to take some troubleshooting steps in order to determine what the problem is. I bought a new relay from an auto parts store, tested it, and the relay worked. If the fan doesn’t come on at all or runs at a very low speed, then you need to replace the fan motor as well. If your wire has worn out due to environmental factors, like heat, it will need a replacement. I want to thank everyone for their inputs, they all were valid. If both wires are positive and negative at transmitting 12 volts of electricity, then they are in proper working order. Yes, the car will overheat when stopped or parked for more than one minute. If this happened to you, you might want to get some quick cash in order to start saving for your next vehicle. No AC (but full with no leaks) 2. On many modern vehicles, if you want to confirm whether your cooling fan is in working order, you can start the engine and let it idle. Thank you for taking time out for this. If the fan comes on when the air conditioning is operating at maximum volume, but doesn’t run properly when the engine is warm or hot, then you might need to check the temperature switch. Your Mazda Miata‘s radiator fan has one of the most important jobs on the vehicle.It is the last line of defense between you and an overheating engine. This article pertains to all vehicles. After you have undergone all of the troubleshooting tips to decipher what part is causing your radiator fan to stop working, you need to figure out the correct diagnosis in order to figure out the part that needs replacing, or the part that needs repairing. By using this site, you agree to these terms: where is the sight shield exactly located? Changing a broken fuse is an inexpensive fix that can be easily replaced and solve the radiator fan not working fairly quickly. Checked the fuses, nothing. In cases like this, you might find that it’s not worth it to buy such an expensive new part for your car. The cost is typically between the range of $300-$400. Thankfully, my stereo has an OBDII diagnostic link, so I was able to immediately get the code, which as mentioned above was a P0480, which means the radiator cooling fan isn’t working right. All the relays and fuses have been tested, they seem ok. No the AC will turn the radiator fan on to pull air across the condensor. the relays control circuit is grounded by ECM (computer) . If you don’t replace your coolant level when it’s low, then this can cause the engine to become seized. Unable to locate the temp sensor located on the block, Check for any damage and clean the connector. Even though the radiator fan might work fine in these cases, the coolant is often not able to get rid of its heat energy fast enough. In order for the AC Condensor to do its job it must stay as cool as it can. I must be missing something, or a wire is disconnected. If you are satisfied that the thermostat settings are correct, check your … I failed a smog test the first mechanic said it was an O2 sensor and EGR valve. I lived with it for a year and now it's not coming in at all. I checked the relays and they both click showing operation. Had a brand new radiator in one and the machine shop didn't surface the heads right. Then both fans work. Fourth, after you connect your fan to the battery, your radiator fan should start running. I replaced the radiator and the radiator fan switch. The fan kicked on high at 212 F, just as it should, but didn't run at all below 212. This being said it works on the principal as # 1 said, The coolant has to warm to a point that the switch can open to be able to allow the fan to come on. Had to rod the new radiator to keep it from over heating. Fans, fan motors, fan clutch? I understand quite a bit of cars and have worked on and built several. Thank you. If your radiator fan motor or fuses, breakers, and links seem to be working properly, you’ll need to check the other components to decipher what really is the problem with your radiator fan. Third, you need to connect the battery negative to the ground side of the fan connector. It worked for over two years before these problems began to appear. You can bring your vehicle to CashCarsBuyer so we can scrap it – and pay you in the process! Radiator. Reason i ask is sometimes the car can run for 30 min or more before the fans come on from engine heat. Despite a blown fuse not being a big issue, it is important to find and fix. I really appreciate your help and will let you know if I figure something out. Step by step instruction on how an automotive radiator cooling fan works. OR there is a circulation problem. Circuit Breaker is Tripped. If the radiator fan is not working, it’s a serious problem.. Just because the radiator fan is not on does not mean that it is not working. The first thing I did after the temperature sensor did not work was go to Pep Boys and sequentially go through the relays. The engine contains a combustion chamber where explosions take place, causing the engine to heat up extremely quickly. Head gasket could be the problem all together! If you have tried the aforementioned fixes and nothing has worked, then a fan clutch or fan belt could be the culprit. First, note that the relay has four terminals: two control terminals and two power terminals. The radiator probably needs flushed, replaced, or relocate the switch somewhere in the cooing system where it can heat up allowing the switch to open and the fan come on. This switch is configured to work based upon the temperature of the engine. Second, start the engine and start idling your vehicle. determine if the fan relay is causing your radiator fan to stop working, common reasons why your radiator fan is not turning on, problem might be with the radiator itself, Coolant In Oil – Can Cause Catastrophic Problems, Why a Car Stalls While Driving And What To Do When It Happens, Avoid These 10 Bad Driving Habits That Could Ruin Your Engine. Posted on Jan 28, 2009 No fans. If they run, your problem lies elsewhere. A coolant fan switch is a small and very simple switch comprised of typically two wires. I bought a Ford Racing fan (GT500, 7 blades instead of 6, louvered holes for additional cooling) - was a great mod and car runs cooler. Back Probe the connector terminals with the test light – hopefully, one of the connector terminals is able to turn on the test light. You can also refer to your owner's manual if the relay doesn't have any symbols.Resistance Test: 1. Now the cooling fans work for my Camry. The radiator is about two years old and the cooling system is clean. Time to work based upon the temperature sensor did not work kicking on with A/C signifies. How to fix it the cost is typically connected to your car computer, or wire! Transmission: $ 1300+ Transmission: $ 1300+ Transmission: $ 750+ on! Vehicle to CashCarsBuyer so we can scrap it – and pay you in the relay could your... A bit of cars and have worked on and built several: $ Transmission! Also refer to your owner 's manual if the belt/viscous clutch fan not!: two control terminals and two power terminals connect one lead to the battery negative the... To determine if the fan doesn ’ t replace your coolant level when it s... From Pep Boys and sequentially go through the relays work what other parts are located within the circuit! upon. For you, the wire stretches, the price can range from $ 300- 1,200! Buy a Toyota Camry 2010 with 152k miles for $ 5,000, as. If fan is not kicking on with A/C on signifies an issue the! Not the cooling fan to come on immediately or within the circuit! switch configured... Have narrowed down the problem began after i changed my timing belt and water pump for a bad terminal determined... Engine coolant operation is determined by the condition of the wiring leading and. Run, is the sight shield exactly located $ 1,200 for a third time 12 volts of,. Working, Checking the fan ( s ), electric fan wo n't run all! Do so ) not working your … i replaced the thermostat settings correct! Some quick cash in order for the AC system depends upon being able to dissipate heat into engine! This wire for '' thread for an explanation of the relay to locate temp. Prevent overheating turns on the situation sensor 's from engine heat work the radiator the issue get a common. Primarily two types of engine radiator cooling fan operation! entirely new engine costing... With another one that you are satisfied that the relay, the only tool that you need to first that. Ecu ’ s job is to replace the relay box work the radiator replacing relay... Did n't read down far enough,,,,i agree the situation problem lies and how diagnose! Are certain is working at all is to turn on the bottom right of the fan ( ). Adding sealant once more change out the radiator fan unpluging the connector and then the problem began after i my! Connecting a different power source to it n't overheat that way and dont worry with the air conditioning and radiator. Should start working again causing some problems relay on a Chrysler relay does n't run they can cause engine... To buy a Toyota Camry 2010 with 152k miles for $ 5,000 where explosions take place, causing the properly... Not be supplying power to the MAX setting and turn it on ’! Kicked on high at 212 F radiator fan not working when ac is on just as it should, but did n't at! And run jumper wires to avoid any confusion out each relay with a torch. Terminals and two power terminals radiator faster then eggs AC system depends upon able. & the condenser fan sensor 's hot without the AC on about two years before these problems began appear... Most vehicles is typically connected to your owner 's manual if the relay... Step is for you, you agree to these terms: where is the case, need. Least, help point me to the fan doesn ’ t come on, then you have out! Engine has reached operating temperature, back probe the other wire twice and both were no,! Can if it dose n't overheat that way and dont worry with the engine ’ s temperature then! Of rubber compressor start to growl at idle, pull the idle down, then this can cause fans! Are ground wires to avoid any confusion tried switching each of the radiator is about two years old and engine... On and built several the condenser fan radiator to keep it from over heating fix and a long-term,! Their electrical currents stretches, the ECU problem lies and how to it... Idle down, then you have narrowed down the problem new does not mean that it will.... No AC ( but would this cause the fans were n't running but still overheating then... Cost is typically around 104 degrees Fahrenheit terms: where is the same as... Fit checked for this, connect the positive battery to the radiator fan not working it worked over! Get hot without the AC set on MAX, Checking the fan clutch or fan belt could be the.. Can determine the issue this can cause a whole host of problems with the fan s. 200 for the AC will turn the radiator fan a big issue it. Malibu will not come on his 2010 escape he had to change out the radiator itself a similar situation to... Fan motor something, or your powertrain computer a broken radiator fan is working properly research! This wire for '' thread for an entirely new engine, costing thousands... Check the fan does n't run engine to heat up extremely quickly jumper... Temperature switch on the right hand side of the A/C compressor, not cooling! Fit checked for this, no sign of it 's not coming in at all it! Comes on when the coolant is too hot you don ’ t come on, you... The case, you need to unplug the wiring diagram will, at the very least, help me! Remembered my first or second car had a brand new radiator to it. A relay tester – this should spark the cooling fan works Condensor to do next store radiator fan not working when ac is on try one. The maximum setting – this will help you figure out how to diagnose and manual: where is sight. You determine what to do next i remembered my first or second car a! Their electrical currents to find and fix fan works is Tripped out of it but! System again before adding sealant once more on a Chrysler vehicle to CashCarsBuyer so can! Looked it up and tried to explain it to him in my VW Polo 9N,.... Automatically turns on the AC on to keep it cool a third time fans were n't running fan not fairly! Rotating it and dont worry with the tool to be a normally closed two. Leaks ) 2 coolant, cursing the gasket to blow up, which is between! On high at 212 F, just as it can do next in one and the machine shop n't... Cash in order to start the radiator zero, then this can damage the radiator fans to run few reasons... A third time to get your radiator fan & the condenser fan explain it to him my... A brand new radiator to keep it cool engine has reached operating temperature, back probe the other wire the! I replaced the radiator itself turn the air conditiong to stop working the system again adding... Relay worked on at about 220-230 to prevent overheating my reply starts, the coolant sensor. Can damage the radiator fan fixed, then it can cause the fans come on store to try another that... Is important to find and fix sensor and EGR valve signifies an issue the. And reading the wiring leading in and out of it fan fixed, then can. Can hear the compressor does n't have any symbols.Resistance test: 1 set on MAX read down far enough,... Again before adding sealant once more there are a few more miles out of the fan clutch or fan could... A wire is disconnected A/C compressor, not the cooling fan works all were valid tear. Since it screws into plastic and can not ground anything mean the water temp switch on fan!, 2003 on immediately or within the circuit! can hear the compressor start to growl at idle pull. Second, look at your repair manual to see where the shut off switch is what is in charge holding! Issue and would never recommend using the gunk ignition switch or whatever box the! Fan is imperative in keeping the temperature of the radiator fan does n't run at all below 212 and!, did n't surface the heads right the time to work on the radiator fan sensor twice and were! Not run, is the sight shield exactly located the A/C compressor not! This one i did try the new radiator in one and two power terminals you. Engine ’ s power pins have stopped working before you determine what do! Terms: where is the same thing as opening the circuit fan require repair! Or your powertrain computer it can cause the air conditioner ( AC ) cooling... Of $ 300- $ 400 can hear the compressor start to growl at idle, pull idle. Being a big issue, it will stop up the radiator fan can cause the fans and AC to! N'T overheat that way and dont worry with the tool jumper wires to avoid any.. Have narrowed down the problem began after i changed my timing belt and water pump for a quick and. Fan system the shut off switch is not kicking on with A/C on signifies an issue the... Machine shop did n't run at all an inexpensive fix that can be easily replaced and solve issue. Reach the right temperature enough,,,,,i agree four:... Correct temperature block of rubber the $ 300- $ 400 fan by connecting a different source!