What is the function of a radiator overflow tank?
Radiator Coolant Overflow Tank: Functions, Bad symptoms and Replacement Cost. The purpose of the radiator coolant overflow tank is to prevent your vehicle’s cooling system from forming rust. As you may know, an engine that is working very hard will heat up very quickly. The oil alone is not enough to keep the components of the engine cooled off.
What are the signs of a bad coolant overflow tank?
Here are four of the most common signs of a bad radiator overflow tank. If the radiator coolant overflow tank is damaged or cracked, then you can expect coolant fluid to leak out of it. Sometimes cracks will form on the overflow tank if it is too old and worn out.
How can you tell if coolant is leaking from the radiator?
This will be indicated on the engine temperature gauge located on the dashboard. If you check your coolant levels in the radiator coolant overflow tank and they are low, then you either have slowly evaporating or leaking coolant.
How to replace a coolant temperature sensor on your Radiator?
Once you’re radiator has been drained, make sure to replace your drain plug or reinsert the petcock before proceeding. This will ensure you don’t forget to complete this step before adding more coolant once the coolant temperature sensor has been replaced. Step 7: Remove electronic harness from the temperature sensor.
What does the relay on a cooling fan do?
The typical electric cooling fan circuit includes a temperature sensor, a relay, a control module and the fan motor. The relay is the component that fails most often; so be sure to test the relay as well as its power supply and ground connections.
Where does the cooling fan in the engine go?
The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator. A second fan for the condenser.
Where is the petcock valve on a radiator?
One of them is a petcock, which is located on the left side of the radiator near the main drain plug (on most vehicles). There are two ways to drain a radiator: Either remove the petcock valve and let the radiator drain slowly or remove the radiator drain plug and expect a high volume of coolant to flow quickly.