Removing the head(s) and having the heads reconditioned, installing the rebuilt heads with new gaskets.
Assuming you mean Mercury Cougar, a new 1983 Mercury Cougar sold for $9800.
Air Conditioning
You are low on coolant.
IACV stands for Idle Air Control Valve. If you are throwing a code for this part, then chances are that it is clogged somehow. Your choices are to replace it or try to clean it. Good luck.
You can view the 2001 Mercury Cougar owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides
its below freezing temperature
I have what looks like a battery light on my dashboard. What does this mean?
I believe this is a warning for the brake pads.
You can view the 1999 Mercury Cougar Owner Guide online at : motorcraft service . com ( no spaces ) Click on Owner Guides The Owner Guide has pictures and meanings
Means you have an issue with the engine coolant level.
I have a instrument light that is on ---- 1999 Cougar , it looks light a transmission, but I think it is the emission indicator on the far left of the steering wheel, what does this mean?
Call your dealer.