Question about 2003 Harley Davidson FLHR Road king

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Fuse how do you test big fuses- like those that run the coolant fans

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Check for power across the fuse. If it is present at both sides, the fuse is good.

Posted on Jul 14, 2009

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Where is radiator fan switch on 1998 olds intrigue


You have relays for the cooling fans. Did you check applicable fuses and voltage on fuse circuits? Any applicable trouble codes?
Check the coolant temp sensor. Don't replace anything unless your testing points in that direction.
The low speed fan comes on about 223 degrees F, hi speed about 230 degrees f.
If you turn on the ac, the fan/s may run? On some makes and models, if you unplug the coolant temp sensor, the fan/s may run?

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Oct 18, 2016 | Cars & Trucks

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Radiator fan not running while car is on


There could be a number of reasons why the fan is not coming on. First of all, it will not come on until the temp reaches a level necessary to have it on. In addition, if the a/c is on, it should be running at all times while the a/c is on. If your car has a/c, turn it on and check to see if radiator fan is running. If not check the following, coolant temp sensor, radiator fan relay fuse, radiator fan motor, coolant fan switch and temp sensor. Start with the easiest, the fuse and work from there. Most switches and sensors can be tested with a simple ohmeter.

Apr 06, 2014 | 1992 Toyota Corolla

1 Answer

Coolant light comes on what is the danger


The danger of ignoring the coolant light is a wrecked motor from over heating. To eliminate all the possibilities. Check coolant level at the radiator --not the reservoir. Have a coolant system pressure test done to determine leaks. Have a compression test done to check for head gasket or cracked head. Check correct operation of cooling fans . All these checks will not cost much but will save big money in the long run

Sep 23, 2013 | Cars & Trucks

1 Answer

2000 radiator fan test, is there any way to test the fan before o get a new one


check cooling fan fuse or fuse link.it all is good. fan relay or engine coolant temperature sensor.could have ECM FAULT it controls coolant fan relay and coolant fan.code scan for ECM FAULT YOU WILL SEE CHECK ENGINE FLASH IF PROBLEM IN THE ECM.but check cooling fan hot wire it using jumper wires to battery.if fan okay replace engine coolant temperature sensor.

Feb 20, 2013 | 1999 Volvo S80

1 Answer

None of the fan motors will run ac/heater or radiator coolant fan motors


Sounds like one of your BIG fuses under the hood or a relay has bgit the dust.
To stop all that at once, it's a major connection. don-ohio

Nov 19, 2011 | 1999 Pontiac Grand Am GT

1 Answer

The air conditioner fan and radiator fan does not start and the engine runs hottest than normal. Any relays or wiring problems ??? i did replace the thermal switch and coolant switch.


Thanks for choosing FixYa and welcome to the site. Have you checked your fuses yet? If the fuses doesn't work for the radiator fan, either the fan is bad or the wires are bad. You can hook a wire to the fan wires and run it to your fuse box to see if the fan is bad or it is the wire. It would at least turn the fan on to cool the engine. As for the a/c fan, same thing, check your fuses. You need a voltage meter. This way, you can test all your wires and you could pick out the bad ones, if the fuses turn out to be good. Once again, it could be the wires or the fan itself. I would say the fan is the reason you are overheating. Find the bad wire and replace it or run a second wire to the fuse box. Make sure you have correct coolant and check your hoses and clamps. It could be the coolant cap as well. If you have any questions, feel free to ask.

Apr 17, 2011 | 1991 Toyota Corolla

2 Answers

The cooling fans in front of the radiator are not blowing. I have checked the 10 and 40 amp fuses in the cooling fan fuse block, but do not know how the check the big block fuses to see if they are...


The fans will not engage until the engine coolant temperature exceeds the operating temperature. If you want to see if they are working correctly, wait for the engine to heat up and see if it starts to overheat, if it does, you have it may be a temperature indicator in the coolant system. Another way in many vehicles to determine if the fans are working, turn on the A/C on MAX and see if they come on. With the A/C on they should always work.

Feb 05, 2011 | GMC Yukon XL Cars & Trucks

1 Answer

COOLING FAN WONT RUN ,ENGINE GETS HOT


check wiring ,connections,and fuses ,relays -if good -test fan motors and check fans for damage or jamming -if good -test coolant sensor the usual problem is a bad fan motor but sometimes the sensor can go bad

Jun 14, 2010 | Lincoln Town Car Cars & Trucks

2 Answers

Cooling fan don't run on 2003 pontiac grand am


Check the cooling fan fuse,and relay,if they seem to be fine,make sure the fan is good,and change the coolant sensor,and see that there is enough coolant in the system and the thermostat has been changed,and there is no air in the coolant system,bleed it out.

Apr 17, 2010 | 2003 Pontiac Grand Am

2 Answers

My coolant fans are not coming on and i am adding coolant every other day, where could it be going and what fuses may need to replaced for the fans to come on?


Hi, there are fuses under the dash board on the driver side that control the connection. this may also be a bad coupluler on the wiring under the hood as well. i would check the fuses first then, check the wires under the hood in front of the actual cooling fans. the connection here may be fualty. the last issue can be that the fans are not functioning. you can test the voltage with a multi meter to make sure there is proper current flow to the fans. if the current flow is proper and the connections and fuses are good, the fans are dead and you will need to replace them.

Mar 16, 2009 | 1997 Chevrolet Lumina

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