GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Engine Coolant Temperature (ECT) Sensor View


Object Number: 258840  Size: LF
(1)RH Coilpack Connector
(2)Engine Coolant Temperature (ECT) Sensor Connector
(3)Engine Coolant Temperature (ECT) Sensor
(4)HO2S Bank 2 Sensor 1 Connector
(5)Starter Motor
(6)Engine Oil Pressure Sensor Connector
(7)Camshaft Position (CMP) Sensor Connector
(8)Fuel Injector Harness Connector
Figure 2:

Coolant Level Sensor


Object Number: 258835  Size: MF
(1)Engine Coolant Level Sensor Connector
(2)Engine Coolant Level Sensor