Q: Car overheating on hot days

asked by on January 27, 2016

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.

Car is overheating Inspection $79.99 - $99.99 Get a Quote

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

I want to change out my air suspension to coil springs.

Hi there. The best thing to do is go with the local parts store for the coil spring set. Any coil spring is a good spring as long as they are designed for the weight of your vehicle. Now since...

Car having electrical problems

Based on your description, I will assume that absolutely nothing powers on when you open the door, insert the key, or even turn the key to the On position. If this is the case, the vehicle's battery may have died....

Possible electrical issue in a 2004 Honda Pilot

It appears that you are having multiple and intermittent issues with your Honda Pilot. Following the dealer's recommendations of replacing the gear shifter cable will likely only solve one of your concerns. The issues you describe with your alarm...

Car sounds like lawn mower when pressing the gas pedal

Hello. It sounds like you have a large exhaust leak. If there is an exhaust leak, you are getting raw exhaust out of the engine, and that might be what you're smelling. You should not operate or drive the vehicle...

Why would one of my belts in my 2004 Volvo S40 get really thin

Hello. If the belt itself suddenly got really thin that is usually because the belt is old and has become brittle. When this occurs the belt will crack and start to come apart. Most of the time it splits in...

Car overheating, low on water but no leaks

If you have a low coolant condition but there are no external leaks, then the engine is leaking internally. Only a pressure test can reveal where the coolant is leaking, too. The leak may be the head gasket leaking into...

Truck overheats when temp outside is below freezing

If the engine is only overheating when temperature drops below freezing then the most likely cause is the coolant in the engine is freezing due to incorrect mixture with too much water. Have the coolant flushed out and replace with...

I accidentally put expired motor oil in my car, will it damage my engine?

Hey there, thanks for writing in about your 2002 Subaru Outback. I don't think you should have any worries. As long as the oil did not have any contamination from water then it should be okay to use the expired...

brake smell is burning

Hi there. It really depends on what is causing the smell and what type of smell it is that would determine the source. If you notice brake fluid smell, it is usually caused by a brake line that is loose....

Related articles

The Best Used Cars to Buy If You Live in a Hilly Area
Do Do you live in terrain that is hilly? Do your city streets feature plenty of inclines and declines that can be nothing short of treacherous in miserable weather? If so, when it’s time to purchase a car you’re looking...
How to Buy a Good Quality Gasket
There There are a wide variety of gasket types on a typical vehicle, from head gaskets which are installed between the cylinder head and the engine block to engine gaskets which seal out harmful elements and keep the engine safe...
The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...