Ford Explorer Fifth Generation (2011-2019) AC not blowing cold air

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

539 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening any components related to AC.
•Ensure all refrigerant handling complies with local regulations and safety guidelines.

Symptoms

•AC system blows warm air instead of cold air
•Increased cabin humidity
•Unusual noises from the AC compressor
•AC compressor not engaging
•Frequent cycling of the AC system
•Refrigerant leaks under the vehicle

Diagnostic Steps

1
Inspect the AC system for refrigerant leaks using a UV dye or leak detection kit.
2
Check the refrigerant level with a manifold gauge set.
3
Scan the vehicle's onboard computer for any error codes related to the AC system.
4
Inspect the AC compressor for proper operation and electrical connections.
5
Verify the functionality of the AC control module and cabin temperature sensor.
6
Test the AC relay and fuse for continuity.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Manifold gauge set
•Refrigerant canister
•Leak sealant (if applicable)
•Socket set
•Torque wrench
•AC line wrench
•Fuse puller or needle-nose pliers

Parts Required

•Refrigerant (R-134a)
•AC compressor (if needed)
•AC relay/fuse (if needed)

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Diagnostic Steps

1
Inspect the AC system for refrigerant leaks using a UV dye or leak detection kit.
2
Check the refrigerant level with a manifold gauge set.
3
Scan the vehicle's onboard computer for any error codes related to the AC system.
4
Inspect the AC compressor for proper operation and electrical connections.
5
Verify the functionality of the AC control module and cabin temperature sensor.
6
Test the AC relay and fuse for continuity.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety.
Ensure the vehicle is parked on a level surface.

2. Address Refrigerant Issues

Sub-step 1: If refrigerant is low, locate and repair leaks using sealant or replace affected components.
Sub-step 2: Recharge the AC system with the appropriate type and amount of refrigerant (R-134a for this model).
Tools Required: Manifold gauge set, refrigerant canister, leak sealant (if applicable).

3. Replace AC Compressor (if necessary)

Sub-step 1: Remove the serpentine belt by loosening the tensioner.
Sub-step 2: Disconnect electrical connectors and refrigerant lines from the AC compressor.
Sub-step 3: Unbolt and remove the old compressor from the mounting bracket.
Sub-step 4: Install the new compressor and reconnect refrigerant lines and electrical connectors.
Tools Required: Socket set, torque wrench, AC line wrench.

4. Inspect and Replace AC Relay/Fuse

Sub-step 1: Locate the AC relay and fuse in the fuse box.
Sub-step 2: Remove the faulty relay or fuse and replace it with a new one of the same rating.
Tools Required: Fuse puller or needle-nose pliers.

5. Reassemble and Recharge

Sub-step 1: Reinstall the serpentine belt if removed.
Sub-step 2: Reconnect the vehicle's battery.
Sub-step 3: Test the AC system after recharging to ensure cold air is blowing.
Safety Warning: Ensure all refrigerant handling complies with local regulations and safety guidelines.