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the car runs great but overheats because the fans dont come on ...what needs fixed ? is there a sensor or something not working?

2007-04-19 07:48:38 · 6 answers · asked by Kord 3 in Cars & Transportation Maintenance & Repairs

6 answers

could be the sensor or the fan motor itself is bad, try to run wires from the battery to the fan and see if it works, if it does the sensor needs replaced.

2007-04-19 13:47:35 · answer #1 · answered by mister ss 7 · 0 0

There are several things to check.

1. Check the fan motors. You can hook up a 12V source directly to the fans. The fans should turn on.
2. Turn on the A/C in the car. This will automatically turn on the fans.

If your fan's turn on, then their motors are fine.
3. The next most likely cause is the fan relay switch.

Typically located either against the fire wall or in the fuse box in the engine compartment. The switch directs electricity to the fans when the engine gets too hot. If the switch is broken, then the fan's aren't getting electricity to turn them on. The fan relay is of course controlled by the car's computer based on information it's getting from the temperature sensor.

I of course am assuming your sensors are working if you know that the engine is overheating. If you know it's overheating, but your temperature sensor is not reading hot, then you need to replace the temp sensor.

2007-04-19 07:54:08 · answer #2 · answered by hsueh010 7 · 1 0

Have notic the fan running,If not check the cable connection(adapter) of the fan.There are a heat sensor(thermostat)attach to engine block.I think only thing you can do is check the connection change sensor or check the fan work on not should let the auto shop people do it.

2007-04-19 08:02:13 · answer #3 · answered by brother3 4 · 0 0

there is a engine coolant temp sensor.. (Most are mounted on the thermostat housing) (or on the side of the Eng. head )..that sends signal to the ( ECM ) Electronic Control Module that tells the cooling fan relay to start the fan... HAYNES AUTO REPAIR MANUEL from auto-zone parts store will walk you through each step it's a really helpful book...ED

2007-04-19 08:04:51 · answer #4 · answered by specialedy05 1 · 0 0

stop Trying to fix it yourself. you best of taking your car to a reputable shop and paying for a diagnostics and find out for sure whats wrong. its a lot better than throwing money and time away on throwing parts at it

2016-05-19 00:03:08 · answer #5 · answered by ? 3 · 0 0

jump wire the fan.
it is run? is good.
tester light the fuse!
it is good?
replace the thermoswitch,( at the radiator bottom)

2007-04-19 07:58:03 · answer #6 · answered by Anonymous · 0 0

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