Why Is My Car Overheating? – Expert Guide by Bestcare Mechanic Garage

Posted on by arcsys | Category: Frequently Asked

Bestcare Mechanic Garage (bestcaremechanicgarage.co.ke)

Car overheating is a serious problem that can cause catastrophic engine damage if ignored. At Bestcare Mechanic Garage, our Nairobi-based technicians have resolved countless overheating issues. Understanding the causes helps you prevent damage and know when to seek professional help.

How Engine Cooling Works

Your engine generates extreme heat during operation. The cooling system maintains optimal temperature (typically 195–220°F) using coolant, radiator, water pump, thermostat, and hoses. When any component fails, heat builds up dangerously.

Common Causes of Overheating

Problem Description Repair Complexity
Low coolant level Leaks or evaporation reduce cooling capacity Easy
Thermostat failure Stuck closed prevents coolant flow Moderate
Water pump failure Cannot circulate coolant through engine Moderate–Difficult
Radiator issues Blocked, leaking, or damaged Moderate
Coolant hose leaks Cracked or burst hoses Easy–Moderate
Head gasket failure Seals between engine and head fail Difficult
Broken radiator fan Cannot cool coolant at low speeds Moderate
Clogged radiator Debris blocks cooling passages Moderate

Symptoms of Overheating

  • Temperature gauge rising into red zone

  • Steam or-steam from under hood

  • Hot smell (burning coolant or oil)

  • Engine performance loss

  • Knocking or ticking noises

  • Check Engine light illuminated

What to Do When Car Overheats

  1. Turn off AC and turn on heater to draw heat away from engine

  2. Safely pull over and stop immediately

  3. Turn off engine to prevent further damage

  4. Do NOT open hood immediately (hot steam can burn)

  5. Wait 30 minutes for engine to cool

  6. Check coolant level only when safe

  7. Call professional mechanic for diagnosis

Professional Cooling System Service

At Bestcare Mechanic Garage, we perform complete cooling system diagnostics, identify leaks, test thermostats and water pumps, flush systems, and replace damaged components. We service vehicles across Nairobi, Kiambu, Machakos, Eldoret, Nakuru, Mombasa, and Kenya. Use our Dial A Mechanic feature for emergency assistance.