I am having sort of the same problem. My coolant light comes on after I've been driving for a while or if my car has been idling. I have checked all of my fluids and the car doesn't seem to be over heating or running hot. Any suggestions on what might cause this? My dad seems to think there is a short in the wire or the sending unit.
The low coolant sensor is a poor design and prone to failure. Get this - you have to buy the bottle to replace it, as the sensor cannot be purchased separately. The good news is, just unplug it. The light will go out and no codes will be generated. Just check your coolant level from time to time, like we all should do anyways when we check other fluids.
Check to coolant level in the coolant recovery tank and radiator when engine is cold
Coolant is used to keep an engine in a vehicle at a temperature safe for operation. If no coolant is in the reservoir, an engine will not start.
Replace the engine coolant sensor.
The sending unit is only to control the temperiture warning light/gauge on your dash. If you are referring to the sending unit in your overflow tank it just turns your low coolant light on. The temperiture sensor is used to feed engine temperiture data into the computer, to caculate how much fuel the engine will get during cold start up etc. It is simply input data for the computer.
No , the engine coolant will start flowing through the radiator when the engine coolant thermostat starts to open ( assuming everything is working properly ) Helpfull
The check engine light will come on anytime the ECU detects a problem with the emission system. It should also come on when you start the vehicle and stay for a few seconds and then go out.
It's saying that something is wrong with your air bag. The light should come on briefly when you start the engine then go out.
when the engine is hot the check engine light came on and the fan(is ok) don't start
is the check engine light on? if so it may be the coolant temperature sensor...happened to me...if it doesnt turn over at all try the starter or the battery
automotive manufactures are now using lights instead of gauges to save money and make it more user friendly. Blue coolant light in the instrument cluster means that the engine coolant temperature is still not at the normal operating temperature (cold). Normally happens at cold start (when you first the car up in the morning for example) It will turn off once the coolant temperature reaches normal operating temperature. Note: if the coolant light turns red, it means your engine is over heating and you should turn it off before you cause more damage.
Replace the engine coolant sensor.
Start by replacing the Engine Coolant Temperature Sensor