Q: Cooling fans won't turn on when engine hot
My cooling fans work, but they don't turn on when the engine is hot. Is it a wiring problem?
Recommended Services
| AC is not working Inspection | $111.46 - $131.46 | Get a Quote |
Even though there are two fans, they work independently. One is called a radiator fan, one is the condenser fan for the AC. Each has each own relay. There are two temperature switches. There are 4 fuses involved. Both are controlled by a module so that is a good place to start. A qualified mechanic from YourMechanic can come out and diagnose your AC system to see what repairs are needed.
The statements expressed above are only for informational purposes and should be independently verified. Please see our
terms of service
for more details
Get an instant quote for your car
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
What others are asking
How do I program the universal garage door opener with a fixed code?
Your truck has a Universal Garage Door Opener that makes it easier for you to open your garage door. They have a specific way to program them with a Fixed Code. To program the Universal Garage Door Opener with a...
How do I use the rear window washer in a 2012 Honda CR-V?
The rear window washer sprays the rear window with washing fluid, and then wipes it away. This increases your visibility when the rear window is dirty. To operate the rear window washer, rotate the rear wiper switch on the wiper...
Car using fuel quickly
The car using more fuel can be due to a problem with an engine sensor, such as the mass air flow sensor giving incorrect air flow readings to the computer, or you may just have a clogged air filter. If...
CTV pros and cons
For you who don't know, those are the cars that don't have transmission gears. They never shift. They just continuously have a range to drive a car. The reason they are doing that is because they get a better gas...
Charning issues, new battery and alternator
Hello there. There are a few potential causes for why the car would have charging faults even after the alternator is replaced (https://www.yourmechanic.com/services/alternator-replacement). The most common would be the battery cable (https://www.yourmechanic.com/services/battery-cable-replacement), shorted harness, battery (https://www.yourmechanic.com/services/battery-replacement), or a failed alternator...
Check engine light is on with code P0440. Also the car makes noise
Hi there, thanks for writing in. This code (https://www.yourmechanic.com/article/p0440-obd-ii-trouble-code-evaporative-emission-control-system-malfunction-by-jay-safford_2) is for a leak or failure in the evap emissions system. By far the most common cause of this is a bad gas cap (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-gas-cap). If the seal on the cap...
2005 Liberty V6 cranks but won't start - it also shows various MIL codes
Extended cranking can set the P0522 code for lack of oil pressure. The P0581 code has to do with the cruise control circuit. I wouldn't concern myself with this one until the car is running. It may clear itself at...
My battery light came on its making a real bad whinning noise
Charging system output should be verified against factory specifications as the alternator may have failed which would account for both the noise and the battery warning light. It is also possible that the noise, and a charging failure, could be...
What would it cost to replace a rear end on 2008 ford crown victoria
A rebuilt axle assembly for your model costs $1,500 to $2,000 depending on your VIN number (different axles were used). Lower cost axles can be obtained from junkyards if you desire to go that route but that introduces risks. The...
Related articles
What to Do If Your Car Switches Get Wet
Your car switches are electrical components. They operate internal and external vehicle functions that require low currents in some cases...
How Long Do Wiring Harnesses Last?
Car wiring harnesses connect all the different electrical systems and components in a vehicle. Wiring harnesses can last the lifetime of the vehicle.
2012 Honda Civic vs. 2012 Ford Focus: Which One Should I Buy?
One of the best ways to cope with pain at the gas pump is to look at downsizing your vehicle, and today’s compact cars are a great option that allow you to keep the space that you need to move...
Browse other content
Services
Cities