Topic: 1996 acura rl 3.5l pcm module

4. **Heater core issues:** The heater core is a smaller radiator-like unit that provides heat for the cabin. If the heater core develops a leak, it can result in coolant leaking into the cabin or onto the ground. 3. Strange Noises or Odors: Unusual noises or odors coming from your air conditioning unit can indicate underlying problems that require attention: ...