Ran a self test on my eatc and got codes 024 and 025.
Problem im having is that no matter whats selected either floor, defrost or vents, heat comes out thru everywhere. another issue with this is that If I start playing with lowering the temp, a knocking noise behind the dash will start like if something is stock. It will eventually stop but it takes about 3-5 mins. when switching to A/C also does the same thing but I get my cold air. So heat and A/C are both working. Its just that its blowing thru everywhere and the knocking noise when switch the temp.
Any Advice?