Skip the auto shop - Our mechanics make house calls

Q: Still overheating after replaced coolant

asked by on

My car began to overheat while driving to the point where I had to pull over. Smoke was coming from underneath the hood and the temperature gage was all the way in the red. The coolant was low, so I added some to the required level and went to get an oil change thinking that had something to do with it. The car began to overheat again. I was thinking it could be the coolant pump but the mechanic said it is costly to take it out and replace, so I am trying to avoid doing that if it could possible be something else. Any ideas on what else would cause it to consistently overheat like this?

My car has 122000 miles.
My car has an automatic transmission.

The overheating of your engine can be caused by a few component malfunctions. The low coolant was a good catch. You then need to ask yourself what caused it to be so low. There may be a leak in the system somewhere. The water pump can be a lengthy repair to make. If that is the cause of the issue, there is no other repair to make besides replacing it. The thermostat can also cause these issues. If it does not open and allow the right about of coolant to enter the system the engine cooling will not take place. If the radiator has failed to cool the coolant, the coolant will not be able to absorb heat from the engine. The fans that assist in cooling the radiator can also fail. The technician that did the original diagnosis may have ruled out some of these possibilities already.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Still overheating after replaced coolant

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: Vibration when driving my car at high speeds

Hi There, Shaking at high speeds is often times related to tires that may be out of balance, low on air, potentially a badly aligned front end or failing suspension components or ball joints. When any of these things are...

Q: It throws smoke and smells like gas took it with a mechanic and he said it's the computer I don't believe he is charging 480 to fi

Hey there. If the fuel pressure regulator is leaking fuel through the pressure regulator vacuum line it will flood the engine with fuel. I have also seen where the ECM shorts and keeps injectors open. If you need a second...

Q: Squeaking sound coming from the front of the car when driving slow

This is very likely related to something that increases with engine speed. The drive or serpentine belts can make squeaking noises that will speed up as they do with engine speed. This is usually due to a loose or slipping...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...