Ect (Engine Coolant Temperature) Sensor - Mercury MerCruiser D2.8L D-Tronic Service Manual

EDI DIAGNOSIS

ECT (Engine Coolant Temperature) Sensor

Refer to Service Precautions in Repair Procedures, BEFORE proceeding.
REMOVAL
NOTE: Handle the ECT carefully as any damage to it will affect operation of the EDI system.
1. Refer to SECTION 6B and drain coolant.
2. Disconnect electrical connector from ECT (Engine Coolant Temperature) sensor.
NOTE: The ECT is mounted in a reducer fitting that is installed in the head.
3. Stabilize the reducer fitting with a separate tool and remove the ECT.
Typical
CLEANING
1. Clean sensor with a dry cloth.
2. Remove sealing washer and clean the seating area.
3. Clean harness connector.
Page 5E-106
a - Reducer Fitting
b - ECT Sensor
c - Connector
NOTICE
b
a
c
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002
75579