Auto-Lock Free-Running Hub - Noise
88nissan05Classification: Section: Front Axle
FA88-003 & Suspension
Reference:
TECHNICAL BULLETIN TS88-086
Models: 1986.5-88 4WD Truck and 1987-88 Pathfinder
Date:
June 16, 1988
TROUBLESHOOTING AUTO-LOCK
FREE-RUNNING HUB NOISE
APPLIED MODELS: 1986.5-88 4WD Truck (D21) 1987-88 Pathfinder (WD21)
SERVICE INFORMATION
On certain Applied Vehicles, noise will sometimes emit from the auto-lock free-running hub when the transfer control lever is improperly operated or when the vehicle is being driven under certain conditions. Use the TroubleShooting Flow Chart on pages 2, 3 and 4 to determine the cause of the noise.
Instruct owners that complain of noise in auto-lock hubs that:
1. Noise occurring in the auto-lock hub under any of the conditions described on pages 2, 3 and 4, is not indicative of a problem.
2. Noise can be eliminated by properly operating the transfer lever on the vehicle.
3. A noise in one hub is indicative of an abnormal condition in the opposite hub.
Refer to Service-Bulletin FA87-003A (TS87-038A) "Noise in Auto-Lock Free-Running Hubs" if further information is needed.
Trouble-Shooting Flow Chart