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4
votes
1answer
38 views

Thermocouple vs Thermostat

Why don't modern engines use a thermocouple (electronic temperature sensor) instead of a (wax element) thermostat?
3
votes
2answers
106 views

Effects of anti-freeze concentration on engine temperature

I am curious as to how useful the engine temperature sensor actually is. It tells you the coolants temperature obviously, but I have read that the engine actually operates hotter than the coolant. For ...
4
votes
1answer
29 views

1995 Pontiac Grand Am Over-Heating and Cold air from heater, why?

My grand am is over heating while idling, blowing cold air out from heater and bubbling in coolant resevoir. Replaced thermostat and water pump and bled the valves to get air out and still same thing. ...
5
votes
2answers
262 views

Vauxhall Corsa 1.3 CDTI Thermostat replacement?

My Vauxhall Corsa 1.3 CDTi 2011's thermostat is stuck open so I am going to have to buy a new thermostat, the problem is I have no experience with car maintenance or repair, I haven't been able to ...
4
votes
2answers
149 views

Rhythmic clunking sound somehow connected to the thermostat I just had replaced

I Bought a 1996 GMC Sonoma Oct. 2014. that winter when I was not getting heat I had the thermostat replaced which brought on a loud rhythmic clunking sound. Seems to be most noticeable when braking to ...
6
votes
3answers
308 views

Does overheating that goes away under high RPMs indicate a sticky thermostat?

Sitting in traffic, my car's thermostat goes up to the red. If I put it in neutral and rev it, it goes up a tiny bit, then suddenly drops back to normal. Is that the thermostat sticking, or something ...
6
votes
1answer
213 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?
8
votes
3answers
1k 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 ...
1
vote
1answer
215 views

2010 Mini Cooper S - Coolant leak from thermostat housing

For more than a month, I have been noticing coolant leaking from the thermostat housing. This was identified by the dealer and another Mini specialist mechanic. The dealer wanted the housing to be ...
7
votes
2answers
703 views

How does the thermostat work?

What does it mean when the thermostat is stuck open or closed? How does it work?
2
votes
2answers
46 views

1998 Galant not starting, has no thermostat

The car has a new battery and new starter, but no thermostat. The battery seems to be drained - the headlights will not come on, there is no clicking sound when I try to start and it won't even ...
3
votes
2answers
127 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 ...
4
votes
2answers
90 views

Why don't thermostats have a sensor?

One of the more common reasons of overheating is a stuck thermostat. One of the most common reasons for blown head gaskets is overheating. One of the most expensive vehicle repair procedures is head ...
4
votes
1answer
428 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
1answer
1k views

Should I remove the thermostat when doing a cooling system flush?

I am going to do a cooling system flush and after some reading and watching some youtube videos I noticed that people take different approaches. So I have the following questions: I understand that ...
1
vote
1answer
1k views

how to temporarily fix a gasket leak?

My thermostat gasket is leaking on my 00 Ford ka. Is there I sealant I can put around it as a temporary fix for a week or two before I can get it fixed?
2
votes
2answers
6k 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. ...
2
votes
1answer
51 views

Thermostat Problem?

The temperature where I live is in the fifties Fahrenheit and it seems like its taking a very long time for the engine to warm up and exit open loop mode. I have a 97 Mazda Lantis 323 and I'm ...
2
votes
1answer
332 views

2002 Impala 3.8L V6 thermostat gauge starts below cold then creeps toward red

My 2002 Impala 3.8 has been running great. However, this summer the thermostat gauge stopped reading temperature right. To the point it wouldn't move even after it had been running for hours. It would ...
2
votes
1answer
304 views

Changed thermostat but now constant leak around thermostat housing

I went to flush my cooling system and change the thermostat on my Mk1 Golf. All went fine until I put the new coolant in. There is a pretty steady leak from the thermostat housing. I've tightened ...
1
vote
1answer
43 views

Fan running the battery dead on a 96 Acura

Alright, my 1996 Acura 2.5TL is running the battery dead by running when not necessary. If it was continuously running after the engine shut off I would say stuck relay but it will both continue after ...
0
votes
1answer
110 views

In the -20F temperatures last week my temperature gauge was stuck under the 1/4 mark. Heating was also affected

Now that it has warmed up, things are back to normal. Even my heat is back. I think that my thermostat was stuck, but can they get "unstuck"?