Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
3. If the noise was not fully eliminated by the procedure in step 2, the power steering pulley may be adjusted with an allowable maximum variance of
1.0 mm (0.039 in) to the front from the flush position on the shaft to assist in eliminating any remaining belt noise. Refer to graphic illustration
number 1 and number 2. Ensure that the power steering pump pulley illustration number 1 is flush against the power steering pump shaft
illustration number 2, with an allowable variance of 1.0 mm (0.039 in).
4. If the noise was not fully eliminated by the procedure in step 3, and there are no other concerns found, follow the published SI diagnostics for
drive belt chirping. Then, if the vehicle was built prior to June 2004 go to step 5. If the vehicle was built after June 2004, go to step 6.
5. Vehicles Built Prior to June 2004:
1. Replace the A/C compressor/power steering pump mounting bracket with P/N 97362175. Refer to graphic illustration number 1. Follow the
published SI procedures for the Air Conditioning (A/C) Compressor and Power Steering Pump Mounting Bracket Replacement.
2. With the new A/C compressor/power steering pump mounting bracket installed, reposition the power steering pump to gain access to drill
larger holes into the rear mounting bracket using a 14 mm (1/2") drill bit. Drilling the bolt holes larger will ensure proper alignment of the
bracket when installing the bolts. Refer to graphic illustration number 2.
3. Install the power steering pump to the A/C compressor/power steering pump bracket. Refer to graphic illustration numbers 4, 2, and 1.
Important
Power steering pump front mounting bolts must always be tightened first to ensure correct pulley alignment.
4. Refer to graphic illustration number 4 and tighten the front power steering pump mounting bolts.
Tighten
Tighten the bolts to 50 Nm (37 lb ft).
5. Refer to graphic illustration number 2 and tighten the rear power steering bracket bolts.
Tighten
Tighten the bolts to 50 Nm (37 lb ft).
