Thermostat

What is a Thermostat?

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

We also have 639 owner problems that mention it.

What problems can be caused by a faulty Thermostat?
639 problems that mention the Thermostat

Showing the latest 10, see more problems here

1
response
Vivaro 1.6 diesel losing water bad 64 reg header tank empty what is the problem please?

Went to work filled it with water when got there empty had to fill it on return home fans keep coming on what is it please?

2014 Vauxhall Vivaro 1.6 tdi 2900
Posted: Aug 11, 2022
1
response
Cooling system headache !!

See below in brackets for the feed i was reading. I seem to have the exact same issue. Some great advice was left for the user but it was never followed up? Did it work, what happened in the end? (H...

2010 Vauxhall Vivaro 2.0 cdti
Posted: Aug 9, 2022
1
response
Fan resistor fuse

Can't find it to replace and my fans are constantly on fast

2013 Citroen DS3 Ds3
Posted: Jul 13, 2022
2
responses
Emission control system fault

antipoltion keeps coming on changed kat also changed all lambda senors but still comes on been to 4 diffrant garages been on 4 differant diagnostic machines no one can tell me why car runs ok even on ...

2012 Peugeot 308 1.4 petrol
Posted: Jul 1, 2022
1
response
Thermostat running really low on long runs driving 60-70

Running car out of town thermostat runs really low changed the coolant and no better

2012 Peugeot 207 1.4 sportage
Posted: Jun 19, 2022
1
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Overheating, fan not coming in

We have changed the water pump and the thermostat, flushed the hose through the engine all good, however the top radiator pipe is hot and the bottom is cold ! The fan doesn’t kick in at all and it b...

2010 Peugeot 207 Cc
Posted: Jun 12, 2022
1
response
OVERHEATING TEMP GAUGE

over heating water disapear car stop not starting until it is cool. steam coming out from radiator top hose.

2005 Citroen Xsara Picasso 1.6tdi
Posted: Jun 8, 2022
1
response
Engine temperature warning light on

After driven the engine fault light comes on and the fan runs longer after stopping

2013 Citroen C3 1.4i
Posted: May 30, 2022
3
responses
Engine failure hazard. Vauxhall vivaro 1.6diesel. Van overheating, no error codes

Every 8 mins the van overheats and has a engine failure hazard light on the dash, we keep bleeding the air out but the problem still persist we have had all the air taken out by vauxhall but problem k...

2017 Vauxhall Vivaro 1.6
Posted: May 25, 2022
2
responses
Engine misfires and cooling fan not switching off for about 7-10 minutes. Happens every six weeks approx.

ENGINE LOOSES POWER When the engine starts to misfire it's always been hot or at least warm and the engine has been switched off a while; say 20 mins to 2 hours on average. The cooling fan seems to r...

2020 Vauxhall Grandland X 1.2 turbo
Posted: May 23, 2022
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