Skip the auto shop - Our mechanics make house calls

Q: My car starts to overheat in stop and go traffic until I turn on the heater. It then goes back to normal.

asked by on

I added coolant and haven't noticed any leaks. I drive 60 miles round trip daily for work and it just started to have these overheating problems in the past few weeks. After turning the heater on full blast the temperature goes back to the normal range and everything seems fine again.

You may have a leak you have not seen if you had to add coolant. You should also not have to turn on the heater to full blast to cool the engine. This tells me you either have a cooling fan that is not working or a radiator that is clogged. I would suggest having a mechanic, such as one from YourMechanic, come to you to diagnose the overheating issue by first pressure testing it for leaks and then checking coolant quality and radiator for proper flow and fan operation.

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!
  • Home
  • Questions
  • My car starts to overheat in stop and go traffic until I turn on the heater. It then goes back to normal.

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: No GPS signal

Hi there. I have not personally experienced any issues with Garmin products not working correctly specifically with Ford models or the Thunderbird. It is more likely that the GPS system itself might have an electrical glitch which causes the malfunction...

Q: water is leaking

If you are getting a coolant leak behind a manifold then you may have a coolant pipe, hose leak on the intake side of engine or a head gasket or freeze plug leak on the exhaust side of engine. Have...

Q: My car weak to start , battery & alternator ok, I put fuel injector cleaner today, some emissions smell exterior, what can it be?

Hello there. Many different faults can cause your 2000 Honda Accord to be slow to start. The most common fault is the battery. If the battery has been load tested and ruled out, there are other possibilities. Other likely faults...

Related articles

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...
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...