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.

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
  • Home
  • Questions
  • How do you know when the thermostat is stuck when the meter is broken?

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: Thermostat housing leaking

Hello! A leaking thermostat housing is a very common concern for your year model. Generally, replacing the entire thermostat housing takes care of it, which includes the upper and lower sections. This is a large plastic housing that should have...

Q: Overheating, leaking, and starting issue

I think you meant to say that the engine's cooling system is leaking, rather than the AC system. Without testing the cooling system, there is no way to tell where the leaks are. The hard starting may not be related...

Q: Overheating problems - 1985 Jeep CJ7

It sounds like you still have a blown head gasket or minute crack in the cylinder head or block, both of which can cause overheating. You mention that you "repaired the head," but don't identify what was done. I would...

Related articles

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 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...
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.