Here's what happen, I got off work and it was about 30 degree. So I start off my car and get it warm up after I was done cleaning off my windshield I was ready to turn on my heat. So I can see where I'm doing cause my front windshield is fog up. I notices is not working, then later on the day I went back to work and start it up and the heat work. -.- I don't know what's going on, sometime it works sometime it doesn't. Sometime it's cold air sometime it's hot air. I'm lost and I really need this car for winter. Please help thanks!

 

Let the engine cool and check the coolant level in both the reservoir and radiator. If low, top off both with coolant and then bleed the cooling system.

Bleeding the cooling system may take 20-30 minutes.

1) Park the car on an inclined driveway with the front end higher than the rear.

2) Push/turn the dash heater lever/**** to MAX heat. Fan need not be on.

3) Follow the directions in the diagram below

 

If that doesn't work have the coolant system flushed.

Or flush just the heater core:
http://www.youtube.com/watch?v=dcL_0TWeZJY

 

I hope this is it!

cause I notice my coolant is leaking from my back of my engine I don't know where it's coming from. I try to located but I still can't fine it. I hope this is it.

 

will it fix my control air flow from working and not working cause sometime I get no air at all? cause when I turn on my lever for my control on high or low sometime it work sometime it doesn't, and then when my air control lever works and the air is flowing sometime I have cold air sometime I got hot air. Does this have anything to do with my coolant system ?

 

Where exactly? Post a pic.

 

I just got done doing that. It came out super clean,

looks like I got a turn switch value on the holes to my heater core. Maybe that might be the problem? cause maybe it doesn't open and let the coolant flow into my heat core?

 

First of all you need to fix your leak. If you can't readily see it go to Autozone/Advance and some will loan you the pressure tester. Once you fix it then properly bleed the system. Turn the temp control to heat and see if both heater lines are hot. If one is hot and the other not your heater control in the engine bay or behind the climate control is broken. You can manually move it in the engine bay like a lever. Sounds like right now you just have low coolant and air in the system from the leak probably from a bad hose.

For reference:

http://autorepair.about.com/library/faqs/bl899g.htm