my Ford Explorer's AC stopped blowing cold air what can I check

Solution

1. Preparation

• Gather tools: manifold gauge set, multimeter, basic hand tools.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Recharge Refrigerant

1. Connect Manifold Gauges: Attach the low and high-pressure hoses to the AC service ports.
2. Read Pressures: Start the engine and turn on the AC to check the pressure readings. Low pressure may indicate low refrigerant.
3. Recharge System: If refrigerant is low, connect a refrigerant canister to the low-pressure hose and add refrigerant according to the manufacturer's specifications.
4. Monitor Pressure: Watch the gauge to ensure it reaches the recommended pressure.

3. Inspect AC Compressor

1. Locate the Compressor: Find the AC compressor in the engine bay.
2. Check Connections: Inspect the electrical connector for corrosion or loose connections.
3. Test Compressor Function: Use the multimeter to check the voltage at the compressor connector while the AC is running.
4. Replace if Necessary: If the compressor does not engage or shows signs of failure, replace it with a new unit.

4. Replace Cabin Air Filter

1. Locate the Filter: Find the cabin air filter compartment, usually behind the glove box.
2. Remove the Glove Box: Open the glove box and remove it by detaching the stops or screws.
3. Replace Filter: Take out the old cabin air filter and install a new one, ensuring proper orientation.