Thermostat Problems & Common Fault Symptoms

The Thermostat is part of the car Engine Cooling System system. We have 3 associated problem symptoms connected to it.

We also have 570 owner problems that mention it.

3 Symptoms of Thermostat Problems
The Latest Owner Problems

We have 570 owner submitted problems mentioning the Thermostat - see more problems .

1
response
Engine temp

Engine temperature drops with heating on and also takes ages to heat up ....... 1.2 twinport 05 agila

2005 Vauxhall Agila 1.2 twinport
Posted: Jan 12, 2021
4
responses
No communication with abs/esp unit

Since last posting multiple garages have tried to solve the problem, end result is abs/esp unit cannot communicate. All ...

2007 Peugeot 207 Gti
Posted: Jan 7, 2021
2
responses
Heater not producing hot air.

It's an exclusive climate control system. No matter what temperature is demanded in the car the temperature of the heati...

2015 Citroen C3 Exclusive
Posted: Jan 5, 2021
1
response
Leaking coolant, engine light inconsistantly coming on and of,heating not working

leaking hot coolant from behind the engine block right hand side looking in from the bonnet

2002 Rover 75 1.8 connossuer
Posted: Dec 30, 2020
3
responses
Using excessive fuel

2016 Toledo 1.6 diesel car runs really well no smoke, or engine misfiring but only get 19mpg , injectors have been chec...

2016 Seat Toledo 1.6 td se
Posted: Dec 23, 2020
3
responses
My car is coming up with code 4.

My air con is coming on automatically when I switch the heater on. My car is not heating up or clearing the mist from th...

2013 Vauxhall Meriva 1.4
Posted: Dec 14, 2020
3
responses
Back pressure through water reservoir cap.

have done head gasket as suggested.still have problem with water spewing through reservoir cap.can only stop this when o...

2010 Citroen C3 1.6hdi picasso
Posted: Oct 22, 2020
11
responses
Intermittent temp gauge and service light

Now and again the service light will come on but at same time the temp gauge needle will drop back to 0, I pull over tur...

2002 Vauxhall Corsa Sxi
Posted: Aug 25, 2020
5
responses
Water not circulating

engine overheating causing fan to come on early, stop warning light comes on, water in expansion tank is to the top and ...

2008 Peugeot 307 cc
Posted: Aug 15, 2020
1
response
Svs cooling fan running flat out

service vehicle soon comes up cooling fan running flat out has already had thermostat changed last year

2011 Vauxhall Astra 1.6 sri
Posted: Aug 8, 2020
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