1995 camaro heating problems

I'm getting nothing but cold air from my heater. I've checked the thermostat (it's good), The heater core was stopped up, but I have taken it off and cleaned it out. After doing that, I did get WARM air for a couple of days, now it's back to how it was before. Any thoughts?

Check your coolant and oil out for a possible head problem :eek: When was the last time the system was flushed/ Also, your car should have used Dexcool instead of the regular good old anitfreeze mix. If you mix the 2 together, after a while they sludge up.

Could be a possible air pocket too.

Otherwise replace the core.

I just flushed the system, and I thought about an air pocket, but that would have worked itself out by now right?

4th gens seem to be really twithcy on the subject. Do a search on the forum, we've covered this many times.