Skip the auto shop - Our mechanics make house calls

Q: Van overheats randomly

asked by on

My van overheats randomly. I changed the thermostat and had the radiator flushed, but it still overheats.

A: There are many possible reasons as to why a...

There are many possible reasons as to why a vehicle can overheat. However a common cause of intermittent overheating is air being trapped in the cooling system. Air bubbles in a cooling system will cause the vehicle to overheat, so I would first recommend making sure the cooling system is properly bled and purged of all air bubbles. If the vehicle is still overheating after it has been properly bled, then there may be another problem present in the cooling system. I would recommend having a mechanic give your vehicle a thorough inspection of your car's heating issue in order to pinpoint the cause.

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・Save up to 30%

Get a quote

What others are asking

Q: idle is high after driving

Hey there. Normally a vacuum leak is the most common cause of a high idle but many issues may cause this. Other possible causes of a high idle are improper sensor inputs, an idle air control valve, a faulty engine...

Q: I was told my radiator fan does not work. I need to know if its broke or is my thermostat stuck.

The radiator fan should come on when the engine reaches a certain temperature, or immediately when you turn the air conditioning on (if so equipped). If the fan does not come on when the engine gets hot but does come...

Q: I hav a humming in front end can't find anything

If the humming increases with speed, it can be wheel bearings or tires. Wheel bearings will hum in a straight line and when you change direction, like changing lanes, the hum will change in pitch or intensity. Tires can...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.