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How To Check If Radiator Fan Is Working


Read more Rules of the Road For Iowa Drivers Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. Check your service manual to make sure exactly where the temperature sensor is on your car. 4. The fans generally kick on only in extreme heat or while not moving enough air across the radiator. Diagnosing and repairing the sensor problem should restore normal fan operation. http://ariseoo.com/radiator-fan/car-radiator-fan-not-working.html

In newer vehicles with computerized engine controls, fan operation is often regulated by the powertrain control module (PCM) or a fan control module. The module is mounted on the radiator shroud and is exposed to a lot of heat so failures are common. Another simple relay test is to shake it. We welcome your comments and suggestions.

How To Check If Radiator Fan Is Working

Get free advice from our expert mechanics.Ask for freeManage car onlineTrack services, save quotes, get maintenance reminders & more.Join for free Home Articles Symptoms of a Bad or Failing Cooling Fan How to Stop Leaking Transmission Fluid Don't let your car's transmission fluid run dry! There was another "sensor" located on the radiator referred to as "engine coolant temperature switch".

Published on 20 May 2014This is the detailed process of how to diagnose an overheating problem (Radiator Fan not working) on a 1997 Honda Civic. Search by Key Word or Phrase: Be sure to visit our other websites: Auto Repair Yourself CarleySoftware OBD2HELP.com Random-Misfire.com Scan Tool Help TROUBLE-CODES.com Searching... Automotive Basics 1,517,086 views 6:10 VERY (DETAILED) HONDA CIVIC TIMING BELT CHANGE/REPLACEMENT FOR ALL 1996- 2000 HONDA CIVICS - Duration: 30:54. When Should Radiator Fan Come On If I pop it in neutral, it starts cooling back down as well.

On many vehicles, there may be two fans: a main cooling fan for the radiator, and a second fan for the condenser. Radiator Fan Not Working Symptoms Types of Electric Cooling Fan Relays There are three basic types of relays: Normally open are the most common type. In either case, if there is a current at the motor, the motor is at fault. When this is disconnected, both fans continuously run at high speed.

Read more How to Get a Louisiana Driver's Permit s licensing program. Cooling Fan Relay Switch When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans. The fuse will have to be replaced to restore possible functionality to the fans. Javascript must be enabled for the correct page display Skip to Navigation Skip to Content × Login to DoItYourself Log In with Facebook Username Password Forgot Username or Password?

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  • Check a fan motor for faults Fan motor with the thermo-switch lead disconnected and test lead connected to the battery.
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  • If this burns out or fails, you’ll need to replace it.
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  • Stay tuned. #9 Musclecar, Mar 28, 2009 Gillbot Lifer Joined: Jan 11, 2001 Messages: 28,785 Likes Received: 1 Check the fan relays themselves, They can also go bad.

Radiator Fan Not Working Symptoms

rehma6b0 458,629 views 26:00 My car is over heating, why is this happening? permalinkembedsaveparentgive gold[–]rudbri93'91 BMW 325i S52 3 points4 points5 points 11 months ago(5 children)You might have a bad temp switch that isnt commanding the fan on. How To Check If Radiator Fan Is Working Get A Quote or learn more Ask a Mechanic (100% Free) Have a car question? Radiator Fan Not Working Overheating Pretty weird..

GET A QUOTE Post a question and get free advice from our certified mechanics. this contact form Choose your language. Clean the parts that are to be reused, simply by degreasing or even by repainting. If the relay fails, it will be unable to supply power to the fans, and as a result they will not operate. How To Test Radiator Fan Relay

If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan failure. realfixesrealfast 506,437 views 7:16 How To Solve An Engine Overheat Condition - EricTheCarGuy - Duration: 26:09. The fan only runs when needed to help cool the engine. have a peek here As they are the component that rotates the fan blades and creates the air flow, any issues that eventually arise with the fan motors can quickly develop into other problems.

They should be putting out around 12 volts of direct current. What Happens When Your Radiator Fan Stops Working If it is not, replace it immediately, and this should take care of the problem. 2. Run your car until it is at operating temperature and touch your lower radiator hose, if it is not hot, this confirms coolant is not flowing.

Use a voltmeter to check that there is current present.

The cooling fans are thermostatic and are designed to come on once a certain temperature is reached, or certain conditions are met. If the motor fails the blades will not be able to spin or generate air flow. 2. Typically when the engine computer loses the signal from the coolant temp sensor, it just turns both fans on high so the engine will not overheat.Click to expand... Radiator Fan Not Working While Driving Read more Auto Safety Tips Driving is more than a way to get from point A to point B.

If you do need to replace the fan, make sure that the replacement has the right CFM rating for your vehicle. 3. ELECTRIC COOLING FAN OPERATION The electric cooling fan is typically mounted behind the radiator. If one or both fans fail to come on, the lack of additional cooling provided by the fan may cause poor A/C cooling performance, and it may cause the A/C compressor Check This Out Useful Searches Recent Posts Menu Forums Forums Quick Links Search Forums Recent Posts Menu Log in Sign up AnandTech Forums: Technology, Hardware, Software, and Deals Forums > Social > The Garage

cities. After that find the coolant temp sensor which is usually near the thermostat housing or on the radiator and make it close itself to try and turn the fans on. Fair & transparent pricing See labor & parts costs upfront, so you can book with confidence. 12-month, 12,000-mile warranty Our services are backed by a 12-month, 12,000-mile warranty for your peace If the sensor isn’t working, your fan won’t come on because it won’t know that the temperature is hot enough to require activation, which can frequently lead to overheating.

To remove the switch, drain the radiator (See How to flush an engine radiator) until the coolant is below the level at which it is fitted. I just checked it again and it's still doing it, and it's relatively warm out today. Working... Checking the switch for faults A thermo-switch with push-on connections.

The armature is normally closed and is pulled open when energized.