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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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: Misfire codes and no-start. What could it be?

Fault codes for P0300, P0301, P0302, etc. indicate misfires. P0301 would indicate cylinder #1 misfiring, P0302 would indicate cylinder #2 misfiring,etc. Code P2159 has to do with the VTEC system malfunction. If all this started after the timing belt replacement,...

Q: Something scraping under car.

Hi there. When making a sharp turn or going over a bump our car tends to lose much of its ground clearance. If it is a metallic scraping noise then most of the time this is due to part of...

Q: My BMW e46 does not have a full power ?

Your issue seems to be temperature related. Taking too long to reach proper operating temperature can be cause by two things. First thing I would check is if either the electric cooling fan is running all the time no matter...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...