Coolant Issue???

[systemat1c]

Hey guys!

I have a 2009 G5 GT 2.2l 5-speed, and just recently I've been having issue with my car's cooling system.

The temperatures when driving will stay around 172-178 when they used to be around 180ish, and when I come to a dead stop and sit for a while they will go up to 220, fans will kick in, then they will go down, back up, down, back up, and repeat that over and over.

I do not have a check engine light.

I should mention, that all of this started after an automated car wash. All my fluid levels are normal and I haven't been losing anything (coolant or oil), and if I am losing fluids, it's unnoticeable.

My buddy who was a mechanic for a good amount of time told me he doesn't think it's the thermostat because my car would throw a code for that. Who knows though!

Any input on this matter is greatly appreciated!

 

[YelloEye]

How long have you had the car and have you had a recent weather change?

 

[systemat1c]

I've had the car for about a year now, and it started mid-winter after a car wash. I believe it was December when we had a day of mid-40's temperature I decided to go to the car wash. Other than before that it maintained about 180ish throughout the summer into winter until then.

 

[YelloEye]

Weird, I'm not real sure where to go with this one. Flush the coolant system with an appropriate mixture of coolant/water for your area temperatures and see where that gets you.

 

[systemat1c]

Alright, I'll start there and report back!

Thanks for the replies!