I'm aware that in winter cars take longer to reach operating temperature but i've noticed that when it does get there it doesn't stabilise.
Through out journeys the temp gauge will go up and down which seems odd as i'd of thought it would only increase and stablize at the normal operating temp as the mileage of the journey accumulates.
The coolant levels seem fine...so the temperature should not drop at any part of the journey?
If it is going up and down real fast then it could be the cylinder head temperature sensor. My previous car had the same problem , I changed that and that solved the problem.
I wouldn't say it's constantly changing but i do notice it will drop at times nothing drastic though. I know nothing about cars but if the temperature is only meant to rise then i may need to get this checked.
Last edited by chosenone93; 2 weeks ago
I can't envision any climate where it can be considered normal for an engine to take that long to warm up.
I'm putting my money on a duff thermostat.