djsweden

I just noticed today that my temp meter goes up and down quite a lot while driving. No special weather or hard driving and I can say its not normal.

Anyone who have seens this and have some experience?

Plutoe

How much variation??---What's the age of your car. When was the last time you had a coolant flush. Who's antifreeze do you use??? bla bla

formerjeepguy

Depending on the temperatures it could be a few different things. It could be as simple as the thermostat stuck open or as bad as a cracked head. Have it checked.

glennhl

I noticed the same thing on a trip a while back. Seems to be the thermostat just cycling. I'd say mine was going up and down by around 10 degrees. That was 6 months ago and the car has been fine.

djsweden

We are talking about +-10 degrees, so a 20 degrees variation. Its a 2012 and regarding coolant I dont know, service was in January and I am not sure exactly what was included this time.

Weather here is stabile 20 degrees C.

Next trip needle was stabile again...

ble2716

Maybe, just maybe, the thermostat is on the way out ?