Q: Car overheating on hot days

asked by on

My car was overheating on hot days and cylinder 1 was misfiring. I had to add coolant multiple times. I finally added radiator stop leak and the car died while driving two days later.

I have seen this a number of times on this vehicle. There have been quite a few concerns with blown head gaskets on Subaru engines, especially this one. Adding stop leak is not going to fix it and in some cases, make it worse. If you have a cylinder 1 misfire then most of the time that would mean that coolant is entering that cylinder. I would verify this with a bore camera on that allows me to see the coolant entering that cylinder. EIther way this engine will need some serious repair or even replacement. If you are not comfortable with this type of inspection then I would enlist the assistance of a certified mechanic, who can diagnose your car’s overheating issue.

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. Car overheating on hot days

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: I got a code P0191 for the fuel rail pressure and a code P0237 for turbocharger boost.

Hi there. When the battery was arched, the power surge had went through the vehicle and caused some circuits to fail. If right after the power surge happened and now you have a code for the fuel pressure and the...

Q: Front camera not working thx

Hello. If the camera is no longer working then it may have failed. From what I have seen on this vehicle the camera does not typically fail, but instead it is a programming issue. You need to take the vehicle...

Q: Car overheating and shutting off

Hi. An engine that is not able to keep itself cool is at serious risk of significant damage. There is a good chance that the head gasket has been damaged as a result of overheating and should be replaced along...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...