Skip the auto shop - Our mechanics make house calls

Q: How do you know when the thermostat is stuck when the meter is broken?

asked by on

My radiator is full to the brim but the tank is always low for the most part. It's a class 2 leak of coolant
My car has an automatic transmission.

A: Hello. If the engine is leaking coolant the...

Hello. If the engine is leaking coolant then the reservoir is always the first part to read low. I usually start by checking for any visual leaks on the ground or on the engine. The most common cause of a coolant leak on this engine is the intake manifold gasket, the radiator, or the water pump. If no visual leaks can be found then I would do a pressure test of the engine as the pressure would help to produce the leak. If nothing is found at that time, then a dye test could be done to find the leak. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the leak and move forward with the proper repairs.

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

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: My car is overheating, what could be the cause?

This can be caused by a number of things, such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know, the coolant fan switch helps to maintain the proper coolant temperature by turning...

Q: My car is starting to over heat and lose speed and I lost heat as well. There is a white smoke coming through my vents

This sounds like the heater core may be leaking. Typical symptoms of a leaking heater core: smoke/steam through the vents, sweet smell, fogging of windows. The heater core is typically located behind the dash. It is part of the heating/cooling...

Q: My water pump is leaking, do I need more coolant?

If you plan on using the vehicle, you should absolutely add more coolant. Do NOT drive the vehicle without coolant. Overheating an engine can permanently damage the engine and several other components. The water pump will need to be replaced....

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...
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...