On 2002-’07 CR-Vs with 4WD, a moaning or groaning noise may come from the rear differential when making a sharp or tight turn at low speeds.

Probable Cause:
Contamination in the rear differential fluid.

Corrective Action:
Replace the rear differential fluid, and burnish the rear differential clutches.

Required Materials:
Honda Dual Pump System Fluid II:
P/N 08200-9007.
• 2002-’04 models: 1.1 quarts per vehicle per replacement (2.2 quarts total).
• 2005-’07 models: 1.3 quarts per vehicle per replacement (2.6 quarts total).

Repair Procedure: 2002-’04 Models

1. To replace the rear differential fluid:

• Refer to page 15-13 of the 2002-’04 OH-V Service Manual, or

• Online, enter keywords REAR DIFF, and select Rear Differential Fluid Inspection and Replacement (4WD) from the list.

2. Raise the vehicle on a lift until all four wheels are completely off the ground and can rotate freely.

3. Start the engine and let it idle until the radiator fan cycles on and off twice.

4. Burnish the rear differential clutches:

Automatic Transmission Models:
• Set the parking brake and shift the transmission to D. Let the engine...