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.

A: The overheating of your engine can be cause...

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!

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: Timing chain is rattling.

The noise you are hearing is the timing chains rattling till the oil pressure builds up and applies pressure to the timing chain tensioners. The manufacture has come out with updated parts to correct the problem. The problem is this...

Q: There's a lot of smoke coming from my exhaust pipe when I push on the gas or going fast

Hi there. Normally, when smoke blows from the exhaust while you're under acceleration it is due to worn out or damaged piston rings. If this happens while you're driving down the road under normal throttle, it could be caused by...

Q: Brake seizing in the rain.

Hello. Your AC should not have anything to do with your braking system. The brakes may very well tend to lock up at times in wet or slippery conditions as that is a function of the anti-lock braking system. Your...

Related articles

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...