Q: Loss of power, likes to run hot and occassionally get close to overheating

asked by on

Before a cross-country road trip, changed radiator fan and motor mount but left cracked radiator alone until it failed on the road / overheated with lots of smoke. Changed radiator, still overheating. Changed thermostat, still overheating. Finally car started losing power and now wondering if it's the water pump or did the overheating (almost went to the "H" many times); cause permanent damage? Why wouldn't 4 different mechanics recommend changing the water pump from the beginning?

My car has 108000 miles.
My car has an automatic transmission.

Most importantly, you need to understand, that when the engine overheats and the coolant level gets low, the sensor that relays the temperature to the gauge is reading the temperature of the air in the engine. The sensor normally reads the coolant temperature, but when the coolant level is too low, it gets its its temperature signal from the air instead. The air temperature will typically much lower than that of the coolant, and therefore, the actual coolant temperature can be much higher.

Repeatedly overheating the engine can cause serious engine damage, such as a warped cylinder head, blown head gasket, or any of several other possible issues. It would be best to have a certified mechanic, such as those available at YourMechanic, do some diagnostics to identify why the vehicle is still overheating and make the repairs that are necessary.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Loss of power, likes to run hot and occassionally get close to overheating

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Random misfire while accelerating on "Drive"

Well it does sound like you have been trying to tackle quite the misfire and driving issues on your Honda Accord. Taking such measures as cleaning your Honda's throttle body, the EGR and the intake manifold are great steps toward...

Q: Accidentally put diesel in a gasoline engine.

We recommend a full drain for any amount of contamination, but if you have put in 2 litres or less of diesel in a petrol car (less than 5% of a full tank) and then fill up your remaining tank...

Q: Loss of power after driving for about a mile. The car won't drive over 30 mph.

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...