AC Condensate Drain Line Draining Inside:
* Clogged Drain Line: This is the most common cause. Leaves, debris, or even mold can clog the drain line, causing water to back up and overflow into the passenger compartment. The solution is to locate and clear the drain line. This usually involves accessing the drain line (often near the firewall, behind the glove box, or under the dashboard) and using a shop-vac, compressed air, or a long, thin flexible tool to dislodge the blockage. You may need to remove some interior trim panels to access it.
* Drain Line Disconnected: The drain line might have become disconnected from its point of exit. Check for this possibility.
* Drain Hole Blocked (Less likely): There's a possibility that the drain hole itself is blocked, rather than the line. Again, access may require removing trim panels.
* Evaporator Leak (More serious): While less likely, a leak in the evaporator core itself could allow refrigerant and water to escape into the passenger compartment. This requires professional attention and repair/replacement of the evaporator core. This would usually be accompanied by a strong smell of refrigerant.
Blower Motor Squeal When Cornering:
* Worn Blower Motor Bushings: The most probable cause is worn bushings in the blower motor. The forces involved when cornering put extra stress on the motor, causing the worn bushings to squeal. Replacement of the blower motor may be necessary. Sometimes lubricating the motor (if accessible) can provide temporary relief, but this is a short-term fix.
* Loose Blower Motor: The blower motor itself might be loose in its mounting bracket. Tightening the mounting bolts might solve the problem.
* Electrical Issue (Less likely): A less likely possibility is an electrical issue within the blower motor circuit, although this is less likely to be related to cornering.
Recommendations:
1. Address the AC drain first. A wet interior can lead to rust and mold, making it a higher priority than the squealing blower motor. If you're not comfortable working on your car's interior, take it to a mechanic.
2. For the blower motor squeal: Try lubricating it (if accessible) as a temporary test. If the squeal persists, replacement of the blower motor is likely necessary. A mechanic can diagnose the exact cause and repair or replace it properly.
Remember to consult your owner's manual for specific information about your 2000 Impala's HVAC system and blower motor access. Safety first; if you're not comfortable performing these repairs yourself, take your vehicle to a qualified mechanic.
