Chevrolet Silverado / GMC Sierra. Service manual — part 133

Fig. 447: View Of Knock Sensor & Bolt
Courtesy of GENERAL MOTORS CORP.

2. Remove the knock sensor bolt and knock sensor from the right side of the lower engine

block.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 448: Block Heater
Courtesy of GENERAL MOTORS CORP.

3. Remove the block heater from the right side of the lower engine block.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 449: View Of Engine Oil Pressure Gage Sensor
Courtesy of GENERAL MOTORS CORP.

4. Remove the engine oil pressure gage sensor using the J 41712 . See Special Tools.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 450: Engine Oil Pressure Sensor Fitting
Courtesy of GENERAL MOTORS CORP.

5. Remove the engine oil pressure sensor fitting.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado