Cam Sensor Wiring - Damaged by 'Mud Flinger'
No: 19/11/97/NASRef: WSM section 19
Issue: 1
Date: 11/11/97
Cam Sensor Wiring Protection
AFFECTED VEHICLE RANGE:
DISCOVERY (LJ) See appended VIN list for affected vehicles
SITUATION:
CAM SENSOR WIRING DAMAGE
Routing of the cam sensor wiring on early production 1998 Discovery vehicles may permit the harness to come in contact with the newly introduced "mud-flinger" on the back side of the crankshaft pulley. This can result in damage to the harness with resulting problems for fuel and ignition signals. Very few vehicles have been retailed which may experience this problem. A printout of affected VINs and selling retailer is included. Please refer to this list for vehicles requiring attention.
RESOLUTION:
POSITION CAM SENSOR WIRING TO AVOID CONTACT AND SECURE WITH CABLE TIE
The cam sensor wiring must be routed and secured in place to ensure that it cannot come in contact with the~crankshaft pulley. It is important that this process be performed at PDI or at the first service opportunity
PARTS INFORMATION:
NOTE:
The cable tie used for this repair should meet the following specifications:
^ Type: Heat and weather resistant
^ Material: Black Nylon identified as "6.6"
^ Size: 2.5 mm wide, 200 mm long (1/8 in. wide, 8 in. long)
Locally Sourced:
^ Cable tie Qty 1
WARRANTY CLAIMS:
18.30.89/29 Time 0.20 hrs.
Secure cam sensor harness with cable tie.
COMP CODE: 7E8K
18.30.24 Time 0.35 hrs.
Replace damaged cam sensor.
COMP CODE: 7E8K
Normal warranty policy and procedures apply
REPAIR PROCEDURE
INSPECTION
NOTE:
Port inspection and factory procedure changes restrict the affected vehicles to those specified on the appended VIN list.
1. Raise the vehicle to inspect from below.
2. Inspect the nose of the crankshaft to determine if a large circular mud finger is fitted.
^ If mud flinger is not fitted, the inspection is concluded and no additional action is required.
^ If the mud flinger is fitted, continue with the inspection.
3. Refer to Figure 1 and Figure 2 and identify connector C1021 and cam position sensor 7262.
4. Determine if the blue wire harness between the cam sensor and connector C1021 has been positioned away from the crankshaft pulley/slinger and secured with a cable tie to the bracket that locates C1021.
5. If the sensor wire is properly positioned and secured; no further action is required.
REPAIR
1. If the sensor wire is not secured, inspect for damage to the insulation or leads.
2. Replace sensor if leads are damaged.
3. Route the blue cam sensor harness away from the crankshaft pulley and flinger.
CAUTION:
It is important that cable tie is installed loosely to avoid pinching the cam sensor leads.
4. Using a cable tie, loosely secure the sensor harness to the bracket locating connector C1021.
5. Trim excess cable tie material.