Questions tagged [thermostat]

The tag has no usage guidance.

6
votes
2answers
22k views

How can I test my thermostat?

How can I tell whether a mechanical thermostat works as it should? Is there a test that can definitively tell me if a thermostat is good or bad?
11
votes
5answers
84k views

Car won't reach operating temperature

Here's a seemingly simple problem - I noticed that the temperature gauge of my mother's 2004 Opel Meriva 1.7CDTI won't ever climb above minimum. I checked the OBD readings to see if it was a defective ...
3
votes
2answers
5k views

1.6 Petrol engine overheats intermittently

I have a Vauxhall Vectra 1.6 (2007). The cooling system operated perfectly (a few kms after starting the engine the needle was pointing to optimum temperature without the slightest waver). 2 weeks ago ...
6
votes
2answers
8k views

How to know when thermostat is open?

Is there a way in modern vehicles to know when the thermostat is on vs off? Is it possible to tell when you don't have access to under the hood, IOW when you're driving?
3
votes
2answers
18k views

How to change a thermostat on a 2007 Pontiac G6

Is it difficult? How do I know the exact location? Just purchased a replacement but I want to make sure I'm opening up the right compartment. 3.5L V-6 This is a picture of what I believe it is.