Sometimes when coolant is drained and refilled air can get trapped in the cooling system. The "bubble" can work its way out during the road test or sometimes it won't happen until engine cools. Shouldn't be a big deal as long as it's not reoccurring, you would just add a little more coolant.

 

Ok thank you! I let it run with the cap off and it got up to temp but I didn't see the coolant move at all. I realized I have a little hose running from the top of my coolant tank that goes no where. It just hangs, so I thought running it with the cap off is probably pointless because I'm assuming the air could escape out that little hose.

 

The tank you fill is called a surge tank and is supposed to reduce air bubbles in cooling systems where radiator is not the highest point. Typically car should be driven a few miles and then engine allowed to cool and level checked. Coolant is added to full hot mark; normally maybe a quart.

 

Ok thank you, I really appreciate your time and input! I'm in love with this car and would like to have it as long as possible. As long as my coolant is full and I'm not over heating or getting any errors I'll keep on cruising. Thank you so much!

 

Hey I'm sorry to keep bothering you but I was thinking, the next time I change my antifreeze after the recommended time, would it be ok to switch back to the dex cool? I would prefer to be doing this every 100,000 miles instead of 30,000. I read something about silicates and am not sure if it's ok to switch back or not. Thank you!

 

There have been advances in chemicals and there are a lot of extended life coolants now. So it will be ok, some of the "green" coolant goes to 5 years or 100+ miles now. So you have a couple years or more to decide

 

I appreicate it very much, thank you!

 

Again I am sorry for all of the questions but is there anything else I should take care of routinely like that?

 

Most stuff just follow owners manual. The only thing not in owner manual is to change brake fluid which should be changed every 2 or 3 years. Brake fluid will brake down over time and can cause problem for ABS unit. P/S fluid would be if you had a repair. Many shops will suggest all kinds of fluid flushes. Engine oil flushes are not recommended by GM; even to the point of a TSB denying warranty coverage related to engine oil flushing.

Periodically check water pump belt. It's under small cover on driver side of front valve cover. If it's heavily cracked or pieces missing needs replaced.

 

Ok thank you very much! I checked the water pump belt when we did the antifreeze and it looks fine. The serpentine belt we did change though because that was split. Thanks again!