Steering - High Turning Effort

CHEVROLET NUMBER: 87-T-68

SECTION: 3B - Steering

Date: February, 1987

SUBJECT: POWER STEERING PUMP SUPPORT BRACE

MODELS: 1987 S/T TRUCKS EQUIPPED WITH THE 2.8L (VIN CODE R) ENGINE AND N40

POWER STEERING


Some 1987 S/T trucks equipped with 2.8L engines and power steering may experience high steering effort caused by a broken rear power steering pump brace. If this condition is encounterered, it can be repaired by replacing the rear power steering pump brace with a new design brace, P/N 10087543. The new brace should be installed using the following procedure.

1. Raise hood.

Figure No. 1A - Removing Power Steering Brace:

Figure No. 1B - Lower Forward Exhaust Manifold:

Figure No. 2 - Lower Power Steering Pump and Water Pump Bracket:

2. Remove the two (2) nuts from the power steering brace, see Figure No. 1A, and discard brace.

3. Remove the lower forward exhaust manifold attaching bolt and discard and replace with stud, P/N 14059400, see Figure No. 1B.

4. Torque stud to 34 N-m (25 lb.ft.), see Figure No. 2.

5. Inspect power steering pump mounting bracket for cracks or breakage. If the bracket is cracked or broken, it must also be replaced at this time using procedures in Section 3B3 of the S/T Service Manual.

6. Attach new rear brace on the power steering pump and manifold studs. Install nuts on pump and manifold studs and HAND TIGHTEN ONLY.

7. Torque nut on rear of power steering pump to 45 N-m (33 lb.ft.).

NOTE: It is necessary to torque nut on rear of power steering pump FIRST to correctly position brace. After this has been completed, torque two (2) remaining nuts to 28 N-m (20 lb.ft.).

Figure No. 2 - Lower Power Steering Pump and Water Pump Bracket:

8. Retorque lower power steering pump bracket to water pump bolt to 33 N-m (22 lb.ft.), see Figure No. 2.

PARTS INFORMATION

Pad Number Description Quantity

10087543 Brace 1
14059400 Stud 1
11508279 Nut 1