Engine and Transmission Noise
DIAGNOSIS AND TESTING - REAR DRIVELINE MODULE NOISEDifferent sources can be the cause of noise that the rear driveline module assembly is suspected of making. Refer to the causes for noise diagnosis.
ENGINE AND TRANSMISSION NOISE
Sometimes noise that appears to be in the driveline module assembly is actually caused by the engine or the transmission. To identify the true source of the noise, note the approximate vehicle speed and/or RPM when the noise is most noticeable. Stop the vehicle next to a flat brick or cement wall (this will help reflect the sound). Place the transaxle in NEUTRAL. Accelerate the engine slowly up through the engine speed that matches the vehicle speed noted when the noise occurred. If the same noise is produced, it usually indicates that the noise is being caused by the engine or transaxle.