300Tdi Discovery
19
FUEL SYSTEM
2
REPAIR
ENGINE COOLANT TEMPERATURE SENSOR (ECT
SENSOR)
Service repair no - 18.30.10
Remove
1. Disconnect battery negative lead.
2. Remove spring clip and disconnect ECT sensor
multiplug.
3. Position cloth around ECT sensor to absorb
coolant spillage.
4. Remove ECT sensor.
5. Remove sealing washer and discard.
Refit
6. Clean sealing washer, sensor threads and
sensor location.
7. Coat sensor threads with Loctite 577 and fit new
sealing washer.
8. Fit ECT sensor. Tighten to
20 Nm.
9. Fit spring clip to multiplug and connect multiplug
to ECT sensor.
10. Top up cooling system.
11. Run engine to normal operating temperature.
Check for leaks around ECT sensor.
CRANKSHAFT POSITION SENSOR (CKP SENSOR)
Service repair no - 18.30.12
Remove
1. Disconnect battery negative lead.
2. Raise vehicle on ramp.
3. Remove 2 bolts securing sensor/shield to engine
backplate.
4. Remove sensor/shield.
5. Remove shield.
6. Disconnect sensor multiplug and remove sensor.
7. Remove spacer from sensor.
CAUTION: All vehicles have a spacer fitted
to the sensor. Ensure spacer is correctly
refitted.
Refit
8. Clean mating faces.
9. Fit spacer to sensor.
10. Position sensor and connect multiplug.
11. Position shield to sensor and align sensor/shield
to engine backplate.
12. Fit bolts. Tighten to
6 Nm.
13. Lower ramp.
14. Reconnect battery negative lead.
