It remains engaged until the time when the cooling fans are meant to come on. Question: I have a 2006 Mercedes E350. There seems to be a couple of things that are not functioning. Without AC, just the cooling fan. See what was the most effective! Slow then fast then back to slow. What could be the problem? Question: I have a 2000 Camry 2.2L. Recheck the connections you made and the fuses. Question: I am experiencing a short on the condenser or cooling fan. technicians, Trusted mechanics, rated by thousands of happy car Answer: There might be a problem in the control circuit. Question: My 1995 Accord’s fan only runs after I shut the motor off. There seems to be no power to the relay and module. Otherwise, check the compressor. When my AC is on, my corolla fan is always spin low till the engine gets hot.. During idle the fan always take long before it comes up. If your cooling fan runs continuously, check the fan relay or cooling fan temperature switch, or engine coolant temperature (ECT) sensor. Answer: Yes. What may be the problem? The radiator fan is running very slowly,it goes onbut runs slowly, i can stop it with my hand , i have checked the fuse (30A) and it works just fine. Only thing I have not replaced I think. What should I look into to remedy this? Hope this helps. Dan Ferrell (author) on December 31, 2018: Not yet. The chart shows that with two Vardar fans in a push setup, spinning at 1800 RPM, the EK-CoolStream XE 240 has a cooling power of 350W/10°C. I have a vitz ksp90 model. However, double check and make sure there's not another DTC in memory or a pending code. If I give the fan a slight push the fan spins. I got a thermostat sensor code on the OBD my question is could a relay cause the thermostat sensor code, J 293 coolant fan control module p1672fan 1control circuit open circuit / short circuit to ground. The universal fan has only 2 wires, one black & one blue. The battery is also dead. Consult your vehicle repair manual to identify each wire, if necessary.4. My nissan almera swing the engen bt doesn't run out. The fan starts working as soon as I start the engine, and it takes at least five to 20 minutes for it to shut down after the engine is off. Also, the car travels along a very dusty clay road. It doesn't happen all the time. When I turn the AC off none of radiator fans ever work. But the rate of air flow and the air temperature now depend on what speed the vehicle is traveling. Recently it rose to the L in normal and I had flushed the system, changed both temperature sensors. Answer: Check the AC compressor. If you don’t … I've read that fans generally don't fail, but this seems like a lot of unnecessary spinning. There could be a loose wire or the relay may be faulty. Question: I have a 2003 Mercury Marauder. The control module is another possibility. My radiator fans are all out off whack (simply put). it usually takes about 15 to 20 minutes. Usually, the problem resides with the fan motor itself, a thermo switch, relay, wire, or (less commonly) the computer or module itself. If the cooling system in your vehicle uses an electric cooling fan, most likely you have a transversal (sideways) mounted engine. Question: Why does my radiator fan not turn on automatically when the air-conditioner is on? It has an electric radiator fan. What controls this? This article explores the life and legacy of former NASCAR driver, Dale Earnhardt. I have a 2006 Pontiac Grand Prix 3.8 Supercharged. Turn on the AC and set it to MAX when at idle and see if it comes on. Any Ideas what could be causing this? Check the fuel pressure on the rail with the engine off and the key on, with the engine running at idle, and the engine running at 2000 rpm. Cooling fan comes on when the engine is cold, and when I put key in the ignition and turn it to the on position (not start) the fan goes off. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. Look for the definition of the code online and you'll get an idea about the problem. It was observed that the size of the fan pulley was slightly less than that of the crankshaft pulley. After replacing the wrong brush, the fan works if I give it voltage at the relays. But you need to have the diagram for the circuit and follow the voltage to see where is or isn't going. After it turned off its become okay. Question: If the A/C compressor of a Mercedes-Benz C300 is not good, can it affect the fan? Check the temperature sensor. Add some penetrating oil to the bearing and see if it helps. Hope this helps. Question: On my 2008 Toyota Highlander, the cooling fan comes up for about a minute and then goes off (mostly at night) without the engine being on and often runs the battery down. Any suggestions? Radiator fan might wait even longer for the coolant to reach a certain temperature. The reference section might have the manual for your model. It's possible there's a failing pressure switch in the AC. CB lingo makes the radio more fun and useful, especially for truckers. If the sensor is plugged in, test the sensor and/or the wires. Are you a truck enthusiast? Answer: This could be a sensor issue or a stuck relay problem. Then, the fan should come on. document.write(new Date().getFullYear()) So I opened the hood and turned the AC manually to the maximum. Other possibility is a faulty fan motor. Check where the voltage is stuck for that side. Probably you need a new fan motor. Replace the fuse or fusible link, or reset the breaker, and test the fan motor again. Question: My engine fan works when the ignition is off. They stay on same speed without AC even if the needle is going above the middle. Realistically, though, having kids means music lessons, athletics,... Here’s Here’s a cruel, hard fact – car manufacturers no longer target seniors. Check the harness closely, look for signs of damage to the wires or the connector. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive The only other thing I never replaced is the water pump? Should I stop the car or can drive with tilhis problem. Answer: Check the fan relays in the power box in the engine compartment. Instead, they devote their time and energy to appealing to the 18-45 demographic. Replaced a blown 30 amp fuse. Your safety will also be at risk if you’re using the wrong tires for your car. Without a set of good tires, your car will not run smoothly and your engine will use more gas than it should. The cooling fan should come on immediately or within the next couple of minutes. Once you connect the fan to battery power, your fan should start running. Answer: There could be an open in the temperature circuit sensor. Or you may have a four-wire terminal (high and low speed and two grounds, test each pair separately). There are no symptoms I'm noticing otherwise. How would I go cleaning the fan? How much wear and tear is really going on if the fans stay on during driving? Other possibilities is a defective or disconnected module. Recently it rose to the L in normal and I had flushed the system, changed both temperature sensors and the control module over the center of the radiator, the radiator fan and the circuit breaker to the fan. Start and idle the engine, and backprobe the connector terminals with the test light. Testing a failed cooling fan circuit can be tricky at times. But. It is the same temperature outside, and we are in the middle of mild winter. But I'd suggest to wait until you got the AC system up and running good. You can listen to the water pump with a length of hose and see if the bearing or noises come from it. It's possible the problem is with the temperature sender or the wire, which may supply the ground for the relay. Check the belt that runs the pump. Answer: In some cases, depending on the fault, it may prevent you from starting the engine or cause other issues. Also, you may want to check out this page and test the cooling sensor as described. What may be the cause? Here's how to unlock your Nissan Micra when the battery dies. If temperature remains fairly steady around 200°F (93°C) or less, the temperature switch or sensor may fail to trigger the radiator fan … On rare cases, the problem is traced back to the car’s computer. You may need the diagram for your model. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Still, some features make certain cars more suitable for older drivers. Depending on your results, you may need the diagram for your particular model to check the fan motor and circuit. You'll need to work on and test the fan outside the vehicle. It might not responding properly when the load increases. Still, on some vehicle models, you can unplug the single wire connector from the coolant temperature switch to trigger the cooling fan on, or by grounding the wire using a jumper wire while the vehicle is running. If you think the fan is running when it shouldn't check for possible DTCs, even if your engine light is not on. So the ECT is doing some work it seems, but is it possible it or maybe something else is keeping the fans on? Question: I have a Chevrolet Aveo LT 2008. Answer: Check first the fuses and relays for the fan's circuit. Check for trouble codes, even if the check engine light is not on. To distinguish between electric and manual fan - A manual fan should be spinning along with the engine speed, spinning at … Also, check that the system is still charged. Dan Ferrell (author) on December 27, 2018: The usually won’t come on until the engine is at operating temperature (around 190 o 210 degrees). gatordp. Question: My 2006 G35 is not overheating, but when the car gets up to operating temperature, both fans come on high and do not turn off until I shut the car off. What do I do next? If it's an old system, there could be a leak as well. On some modern vehicles, an ambient air temperature sensor, vehicle speed sensor, and other sensors may provide input to the car computer to determine radiator fan operation. What could be wrong? Is this a huge problem that I should try to fix? The fan is not turning on low speed if the engine is on, even if it reaches the heat indicated. The electric radiator fans mounted in the front of the radiator are known as pusher fans. The fans don’t come on when the engine is at full temperature either. It's not frozen it moves freely. If the thermostat is old, you may want to replace it as well. Troubleshoot an inductive or Hall effect type crankshaft position (CKP) sensor using a digital multimeter. Question: What would cause my cooling fans to stay on even when the vehicle is cold? Want to save on an expensive car bill? Proper maintenance helps prolong the useful years of your car. Recently it rose to the L in normal and I had flushed the system, changed both temperature sensors. Otherwise, the switch is not working.NOTE: If your vehicle repair manual gives you the cold and hot Ohms (resistance) values for your temperature switch, you can test it with a digital multimeter. They do if they are straight wired. Most people pull air through the rad, I push it through because I can't fit the rad in my case with the fans infront of it. Answer: There could be many reasons why an engine may be running hot. If If you have three or more kids, you could probably get by with a mid-size sedan if all you want to do is take them from Point A to Point B. It has two fans, the Radiator fan seams fine. Answer: You may want to check the coolant temperature sensor. Looks like fan is moving kind of slow also. As the motor ages, the circuitry can fail, causing the motor to malfunction. 11 people found this helpful. The fans do not always operate the whole time. Check the temperature of the engine block and radiator tank (the one that connects to the engine with the upper radiator hose) using a kitchen thermometer. Answer: I don’t know if these are the right ones for your model. The ECU signals the radiator fan to work at the precise time. But check the F35 fuse (I think is a 40 amp) and Maxi fuse 36 (engine bay box), and fan relay (don’t know exactly where it’s located). Hope this helps. Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing. Question: Should a cooling fan connector switch get hot to the touch? Fuse. Haynes makes good aftermarket manuals. Answer: It is possible to do this. If you're going ahead and replace the compressor, go ahead. Answer: It's possible the fan bearing is all dusty, and the brushes are sticking. Now it doesn't start at all. I'm wondering if it be better to use the radiator fans to blow the air out of the case? Answer: It is normal for the cooling fan to stay on, it helps the engine to cool. I was thinking maybe the resistor but then a friend told me that if the radiator fan gets unplugged somehow or just stops working for some reason, that my AC would not work as well. Please respond. 2006 Audi A3. Also, it's possible the fan relay is stuck. I changed the block temp sensor and relays and nothing changed. May 9, 2008 #2 A. Arcygenical Fully [H] Joined Jun 10, 2005 Messages 25,059. It might not be responding properly when the load increases. My son will come on but it'll run slow and stop. Every time cooling fan starts engine getting wobbly. Fans have been tested both the old and new (and they worked), but I can't get this fixed. My 2007 Camry doesn't blow cold, but it blows hot when I turn the dial to heat, What could be the problem? I think it works abnormally. Question: The fan on my car started to turn on too often. My car has 100000 miles. But, then again, the factory switch works in sync with ignition timing, fuel, oil temperature, and many other things to give you better engine performance and minimum emissions. Just to make sure, check the charging circuit voltage drop, to see the condition on the wires and connectors. Answer: I don't have the schematic with me, but if I remember correctly, it's located to the left (driver's side). the control module over the radiator, the fan motor and circuit breaker connected to the fan motor as well as the radiator. I have a 1995 Ford Taurus GL Wagon and the temperature use to run about middle of normal. Currently I purchased used toyota vitz 2001 model car. You can check the specs for your particular model using your vehicle repair manual. Still runs hot, between L and Hot on highway, fan is coming on about the L. Comes on when A/C is on. Answer: Check the engine coolant sensor and the relay for the low-speed circuit. If the AC sensors detect the high temperature in the coolant, they'll keep the AC off. Had hose replaced and now car running hot. Since coolant stops circulating and coolant may boil from engine heat, the fan blows air around to engine to help remove this extra heat. Still, you can avoid much of the confusion using a troubleshooting plan. Question: I have a 2009 kia Sedona. Hello - the loss of power you are experiencing could be a failed throttle position sensor, or a clogged catalytic converter. Answer: There could be several reasons for this. 2. Radiator Fan Running extremely fast but car is not overheating.