Where is the temperature sensor on a 1999 Jeep Grand Cherokee?
there is a temp sender that feeds the gauge/dummy light…..it is located at back of engine on driver’s side beside the valve cover, screwed into the intake manifold, in between the fuel rail and injector harness rail…see pic below…
Where is the cooling fan relay located on a 2004 Jeep Grand Cherokee?
There are two fan relays (high speed and low speed) on the 2004 Jeep Grand Cherokee in the PDC (power distribution center) under the hood on the passenger side. One of the firSTSymptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats.
How can I tell if my radiator fan is not working?
The first symptom or sign that something has gone wrong is that your cooling fan doesn’t come on at all. This is the most common symptom of a faulty cooling fan motor, but it may not be one you notice while driving your vehicle. If the motor burned out or starts to fail in any way, the cooling fans are disabled.
What would cause a radiator fan to stop working?
Six things may prevent an electric cooling fan from coming on: Defective temperature switch, coolant sensor or other sensor. Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) Faulty fan relay.
How do I test my radiator fan?
How to Check a Radiator Fan
- Determine whether your radiator fan is manual or electric.
- To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on.
- Use the volt meter to test if there is power to the wires.
- Normal voltage for a radiator fan is around 12 volts.
Does a radiator fan run all the time?
An electric fan SHOULD NOT run all the time. The fan turning on is normal and a consequence of the hot coolant, not a cause. The coolant may not be moving due to a water pump problem, blockage in the radiator or hoses, or a stuck valve, i.e., the “thermostat” in the coolant line.