Why does my car have a low coolant level light?
When you start your engine, the low coolant level light should come on for only a second or two and then turn off. If the light doesn’t go off, the coolant level might be too low , or the sensor system is experiencing a problem detecting the correct amount of coolant in the system.
Where is the low coolant sensor on my truck?
Maybe 6 or 8 inches down from the top on either side as Freddyack stated. Low coolant light. My truck is a ’93 6.5 C2500 and the low coolant sensor is in the passenger side radiator tank. About a foot down from the top.
What are the symptoms of a bad coolant temperature sensor?
Hence, it is advised to have your car inspected right away to avoid any serious problems. Here is a more detailed list of the common symptoms of a bad coolant temperature sensor. One of the first symptoms you will notice is that the check engine light will activate.
Can a car have more than one coolant sensor?
Some vehicles may have more than one temperature sensors, as sometimes different sensors are used to send the signals to the dashboard and the control unit of your engine system. This is optional and a manufacturer can use only one coolant temperature sensor to send the signals to both of these desired receivers.
What does a bad coolant sensor do?
A failing coolant temperature sensor will prevent a vehicle’s engine from entering a closed loop. This will cause the vehicle to run rich meaning the engine’s fuel mixture will have a higher percentage of fuel to air which will result in diminished fuel economy.
How does the low coolant level sensor work?
The coolant level sensor uses a moveable float device and a reed switch that senses when the radiator has low coolant. Once the sensor detects low coolant, the driver is alerted by a light illuminated on the dashboard.
Another symptom of a problem with the coolant temperature sensor is an overheating engine. The coolant temperature sensor can also fail in a manner that causes it to send a permanently hot signal. This can cause the computer to incorrectly compensate for a lean signal, which can result in overheating, and even misfires or engine ping.
Is there a low coolant warning light?
The low coolant level warning light is part of a system that includes a sensor inside your cooling system’s expansion tank . It will have levels marked “Min” and “Max,” or “Low” and “Full,” that indicate the actual coolant level when the vehicle’s engine is cold.