Cooling System Diagnosis
Cooling System Diagnosis

So, The cooling system diagnosis is composed of various parts: the radiator, pressure cap, fan, pump, thermostat, hoses and overflow tank. Also, The pump sends cooling fluid to the engine where it absorbs the engine’s heat.

Choose Your Engine Help Topics Below

Thermostat Issues – Is Your Coolant Flowing Properly

Intermittent Temperature Related Engine Problems

Engine Misfire Causes – Fuel, Ignition, Coolant Or Compression Related

Coolant-Antifreeze – Engine Cooling And Testing Made Easy

Engine Cooling Fan – Is Yours Working – How To Test It

Clean Engine Oil From The Cooling System – Find Out How

(ECT) – Engine Coolant Temperature Sensor – Function-Failure And Testing

Thermostat Problems Will Affect Your Engines Performance

Automotive engine overheating causes and cures

Engine Coolant Leaks – How To Find Them – How Bad Are They

Thermostat Issues – Is Your Coolant Flowing Properly

Antifreeze-Coolant – What Are The Basics You Really Need To Know

Automotive radiator overheating causes and cures

Antifreeze-What Does It Do ? – Why Do You Need It ?

Radiator Cap – This Fairly Cheap Part Is More Important Than You Think

Bad Radiator Cap – A Cheap Fix For A Potential Disaster

Car Radiator – Consequences Of Car Radiator Overheating

Coolant Recovery Tank – No Tank – Overflow Tank – Expansion Tank

So, A cooling system works by circulating liquid coolant through passages in the engine block and cylinder head(s). Also, As the coolant flows through these passages, heat is transferred from the engine components to the coolant. The heated coolant then makes its way through a rubber hose to the radiator in the front of the engine compartment.


Finally, As it flows through the thin tubes in the radiator, the hot liquid is cooled by the air flow entering the engine compartment through the grill in front of the vehicle. Once the fluid is cooled, it returns to the engine to absorb more heat. The water pump has the job of keeping the fluid circulating through the system when the engine is running.