Chevrolet Silverado / GMC Sierra. Service manual — part 91

Fig. 290: Fuel Pump/Oil Pressure Sensor Fitting
Courtesy of GENERAL MOTORS CORP.

3. Remove the fuel pump/oil pressure sensor fitting, if necessary.

Installation Procedure

IMPORTANT: Note the alignment of the engine oil pressure sensor fitting

prior to removal.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 291: Fuel Pump/Oil Pressure Sensor Fitting
Courtesy of GENERAL MOTORS CORP.

1. If installing the old fitting, apply sealant to the threads of the fitting. Refer to Sealers,

Adhesives, and Lubricants for the correct part number.

2. Install the fitting until snug, if necessary.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 292: Fitting Centerline & Crankshaft Centerline
Courtesy of GENERAL MOTORS CORP.

3. Tighten the fuel pump/oil pressure sensor fitting.

Tighten:

1. Tighten the fitting to 15 N.m (11 lb ft).

2. Increase torque until the centerline of the fitting (1) is 50 degrees from the centerline

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

of the crankshaft (2).

Fig. 293: J 41712
Courtesy of GENERAL MOTORS CORP.

4. If installing the old sensor, apply sealant to the threads of the sensor. Refer to Sealers,

Adhesives, and Lubricants for the correct part number.

5. Using J 41712 , install the sensor. See Special Tools.

Tighten: Tighten the sensor to 30 N.m (22 lb ft).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado