When does the thermo coolant fan switch shut off?
As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. The coolant fan will continue to run until the engine temperature cools down to a specific predetermined level. Once the temperature reaches this cooling stage, the coolant fan will shut off.
What are the symptoms of a bad coolant fan switch?
A common sign of a faulty switch, which can also be alarming, is that the switch will simply not turn the fans on at the predetermined temperature level resulting in engine heat climbing above what it should be in order to run effectively.
Can a bad thermo fan switch cause overheating?
There are many other engine systems which are also indirectly affected by the operation of this switch, but in the context of this article we will focus on its relation to the operation of the coolant fan. Several symptoms may point to a bad or failing thermo coolant fan switch. 1. Engine overheating
Why is the coolant fan switch so important?
Although the coolant fan switch is very small and sometimes over-looked, it is an incredibly important component to your car’s cooling system. Think of this switch as the “gate keeper” to the temperature regulation in your vehicle’s engine.
As engine temperature rises to a specific threshold, the switch is activated powering on the coolant fan. The coolant fan will continue to run until the engine temperature cools down to a specific predetermined level. Once the temperature reaches this cooling stage, the coolant fan will shut off.
What to do if your coolant fan switch is bad?
As mentioned above, the thermo coolant fan switch is a very vital piece to your engine’s life and is a very inexpensive part to replace. As such, our recommendation would be to have an expert mechanic from YourMechanic come to your home or office to diagnose the problem.
What are the symptoms of a bad thermo fan switch?
Symptoms of a Bad or Failing Thermo Coolant Fan Switch 1 Engine overheating Engines generate an enormous amount of heat and as a result are subjected to very large… 2 Check Engine Light comes on Fortunately, when this happens your Check Engine Light will be on and depending on the… 3 Broken or shorter signal wire More
Why does my thermo coolant fan keep grounding?
As mentioned earlier, there are two wires inside the switch. When one of these is broken it can cause them to ground intermittently, which will cause the fan to also work intermittently.