The computer decides to run the fans off of the signal from the engine coolant temp (ect) sensor and the air conditioning pressure. The ect is the two wire sensor nearest to the upper rad hose on the engine.
Hello (: I have a 2004 dodge stratus and its fans aren't turning on when their supposed to, but when they do they won't turn off and the sensor isn't detecting the temp, what could be the problem ...?
Take it to a mechanic and get them to check it, seems like a problem that we can't fix with words...
Cooling fans are controlled by the computer based on input from temperature sensor. After the vehicle is shut down, if the temperature is still high, the computer will turn on the fans to cool the engine.
A temp sensor
Yes
You have a 2 speed fan. If it is running on high then your cooling system is hotter than it should be.
It doesn't use a fan clutch. It has electric cooling fans.
The cooling fans are controlled by the engine computer. It watches the coolant temp sensor, which is near the thermostat, to decide when to run the fans. Yhe computer acuates a realy to turn the fans on.
The temperature sensor for the radiator fans on a 1999 Chrysler Grand Voyager is typically located near the thermostat housing or mounted on the engine block. It monitors the coolant temperature and signals the radiator fans to activate when the engine reaches a certain temperature. For precise location, it's advisable to consult the vehicle's service manual or a repair guide.
Do they work when you turn the A/C or Defroster on? If so it could be temperature sensor If not it could be fuse
this could be caused by a fautly cooling temp sensor, sending a false reading to the cooling fan relay, causing the fan to continue running, also, could be caused by a faulty relay, I would rerplace both.
Could be a bad fuse Could be a bad temp sensor Could be a bad relay