New to the site and have used the search thread and came up with no answers. My 07 malibu ltz has a coolant leak which I cannot seem to find. No drops under the car but I have to keep putting it in every couple days and the fan runs alot longer then it should. I know a coolant pressure test would probably tell me more, but was wandering if this was a common thing. Any input would be great.

 

Here is a picture of my car!

 

Could be a cracked head bolt or gasket, check the oil. If it's grey and thin there's coolant getting into the system.

 

Oil seems normal. On really hot days the fan stays on alot longer even after the car is turned off. I can smell coolant burning as well.

 

Did you find the problem yet?

 

Finally found the leak. Its leaking from where 3 hoses connect right below the resovoir. Im hoping its only one of the hoses. Leaking right where the clamp is. Pain is the *** to get to though.

 

Fixed today. It was the coolant Tee pipe that was cracked. Part was less then ten bucks.

 

Glad you fixed it! Those little things are a big pain!

 

I also have a 2007 LTZ that is loosing coolant. I've never had a good chance to dig into the problem but its been like this for about 2 years now. Since I'm so busy I just add more coolant. The way I know I'm low on coolant is I start hearing "moving water" sounds. When sitting in the car I can hear a sound like water running in the pipes, especially on acceleration. I did spend about half hour once to try and find any leaks but found nothing. Looked just about everywhere. Everything is dry. There were a few questionable spots on the engine but seemed more like oil. The engine temperature gauge though, has never been higher than normal. I will double check those hose connections under the reservoir when I get a chance.