Best Automotive Replacement Engine Radiator Cooling Fan Motor Relays in 2022

Last update: November 23, 2022

Can a bad thermostat cause radiator fan not to work?

A bad thermostat can cause the radiator fan to not work. If the thermostat is not working properly, it will not allow the coolant to flow through the radiator, and the fan will not be able to cool the engine.

Do I need a relay for a radiator fan?

How can you tell if a fan relay is bad?

One way to test if a fan relay is bad is to use a multimeter to test the continuity of the relay. If the relay has continuity, then it is not likely bad. However, if the relay does not have continuity, then it is likely bad and will need to be replaced.

How do I know if my radiator fan motor is bad?

If your radiator fan motor is bad, it will likely need to be replaced. There are a few ways to tell if your radiator fan motor is bad. One way is to listen for a squealing noise when the engine is running. Another way is to check the fan blades to see if they are bent or damaged in any way. If the fan blades are bent, it is likely that the motor is bad.


Dorman 902-303 Radiator Fan Relay Kit Review:


We thought the thermostat was stuck when my girlfriend's Grand Cherokee overheated, so I went out and bought a new one and installed it. No luck! The fan unit was checked by utilizing a few wires jumpered between the battery and the fan connector as the next step. Fan operated! enter this section delivered two days after the order was placed. I removed the headlight as instructed by the videos on YouTube and discovered that the original had at least once been changed. Since Dorman advises replacing the harness with their new one because the old one appeared to have a darker pin, I started stripping and clipping all the wires. PLEASE NOTE: THIS IS WHERE CELLPHONES ROCK. Before cutting the lines, I snapped a photo of the wiring harness, making it easy to link the right cable to the right wire. With me checking to make sure all connections were tight, installation took around an hour. I believe the only way this section could be improved is if they also provided some shrink wrap so that everything could be made watertight. But since that would need a heat source, it would probably be safer without. Once installed, the fan operated flawlessly!A IMPORTANT NOTE: The cruise control and cabin vents on Grand Cherokees from the early 2000s were both controlled by vacuum lines. Many individuals have discovered that when one of those lines cracks, the cruise control function is lost and the system resorts to the defroster. (Or they pay a mechanic a fortune to find it) In any case, if you remove the headlamp, you'll notice a vacuum canister behind the headlight, connected to it by a rubber hose and a plastic T connector. Just by chance, I noticed a broken, dry-rotted hose as I was changing the relay. After spending 50 cents, my girlfriend's heater and cruise control are once again in perfect working order, in addition to her fan.



Radiator Cooling Fan Control Module Relay ECU for Ford Crown Victoria Lincoln Town Car Mercury Grand Marquis RR28 6W1Z-8B658-AC 940002904 RY1532 902-209 Review:


As this part is used on both GM and Ford electric fans, I bought it for a Pontiac Solstice. The fans must also be replaced in conjunction with this module as part of the GM replacement. It costs more than $350.00. Not the fans, but this module failing, is the issue. With the same mounting tabs, Philips screw, and harness plug as the Ford, this mounts straight into the GM fan shroud. It is a direct substitution. The internals are identical as well. At a quarter of the price GM requested, this resolved the solstice issue. Perfect!



Fan Thermostat Temperature Switch with 3/8" Pipe Thread, 185 to 175 Degree Electric Engine Cooling Fan Thermostat Temperature Sensor Switch, Fits 10" 12" 14" 16" Fan (With Pipe Thread) Review:


Works perfectly on my 1998 Town Car thanks to some brilliant Ford employee who decided that the 1998 4.6L engine doesn't require a cooling temperature sensor and uses some bs sensors instead. They don't function, but the town vehicle still had the whole, so I connected one to the fan relay because relays operate using ground rather than positive voltage. It took me three years to figure it out, but this is how I fixed a problem caused by Ford, Lincoln, and Mercury with the 4.6L V8. IT WORKED GREAT for 40,000 miles, after which I sold the car. To replace the existing 190-degree thermostat, you will need to purchase a 180-degree model. Its location is important; place it in an area that becomes hotter than the rest or in a cooler area depending on whether it is near or far from the thermostat. Keep in mind that the temperature will continue to rise for five minutes after you turn off the automobile, giving you some breathing room. Due to this negative chassis switch, I connected it to a green LED button that illuminated green when the relay activated.



PartsSquare New 185 Degree On 170 Degree Off Radiator Cooling fan Thermostat Temperature Switch Kit Compatible with 265 283 305 400 347 352 360 390351M 400M 273 318 340 360 361 383 400 ENGINES Review:


Hello, I'm writing this review since I bought this fan switch for my 1982 Chevrolet 350, and it works flawlessly. I had a Spal 185/165 and am using an AC Delco performance thermostat set at 160 degrees, but I could never get it to operate properly. My fans used to never turn off when I turned them on at 185 degrees, but now that I have this sensor installed, they now turn on and off as they should at a temperature of 185 to 175 degrees. If this sensor will last, only time will tell. I will submit a review if anything changes, but for now it works fine.



Amazingli 200 to 185 Degree Electric Engine Cooling Fan Thermostat Temperature Sensor Switch Review:


Item functions. Kinda. This allowed me to activate a pusher fan on my Procharged C5z. Given that these cars tend to run hot when modified, I wanted it to perform as promised and switch on at 200 and shut off at 185. Following installation, I connected my laptop so that I could record temperatures. The fan turned on at 196, which is OK, but turned off at 194, so it essentially just cycles. As they all seem to be the same part with various names, I am hesitant to buy another from any of the merchants. back to the study.I'm going to get in touch with the vendor to see if they'll replace me with someone else.I'll let you know the outcome.Edit: I'm pleased to report that Amazingli performed better than anticipated. They provided me with a new temporary switch at no cost right away. with ongoing communication The new sensor functions properly, and I am a satisfied client.



AUTEX NEW Dual Electric Cooling Fan 185 Degree On 165 Off Engine Fan Thermostat Temperature Switch 40/50 amp Relay Kit Review:


These were mounted on my 1995 Impala SS. I'm back in action now!



GooDeal Cooling Fan Control Unit Module 1355A124 for 2002-2007 Mitsubishi Lancer Outlander Review:


This small item fixes a big issue—the fridge's intolerable loudness!


How do you test a radiator fan switch?

To test a radiator fan switch, first locate the switch. It is usually located on the radiator, near the top. With the engine off, remove the switch and test it for continuity with a multimeter. If the switch is working properly, there should be continuity between the two terminals when the engine is cool. If there is no continuity, the switch is defective and needs to be replaced.

How many fan relays are in the car?

The car has two fan relays. One is located in the engine compartment on the driver's side, and the other is located in the trunk on the passenger's side.

How much does it cost to fix a relay in a car?

The average cost to fix a relay in a car is between $50 and $100. The exact cost will depend on the make and model of the car and the severity of the problem.

How much does it cost to replace a fan relay?

How much does it cost to replace a fan relay? The cost to replace a fan relay will vary depending on the make and model of the vehicle. However, the average cost is between $30 and $50.

How much does it cost to replace an engine cooling fan?

An engine cooling fan helps to cool the engine by drawing air through the radiator. The cost to replace an engine cooling fan will vary depending on the make and model of the vehicle. The average cost for a cooling fan replacement is between $400 and $600.

How much is a radiator fan fuse?

A radiator fan fuse is usually priced around $15-$25.