Rack & Pinion Assembly R&R

Caution: With wheels of vehicle facing straight ahead, secure steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of steering column will prevent damage and a possible malfunction of SIR system. Steering wheel must be secured in position before disconnecting following components: steering column, intermediate shaft(s), steering gear. Caution: After disconnecting these components, do not rotate steering wheel or move front tires and wheels. Failure to follow this procedure may cause SIR coil assembly to become un-centered and cause possible damage to SIR coil. If you think SIR coil has become un-centered, refer to your specific SIR coil’s centering procedure to re-center SIR coil.

1 With front wheels in straight ahead position, turn ignition switch to OFF position and remove key from ignition lock cylinder. 2 Rotate steering wheel in order to lock steering column. 3 Remove intake manifold cover. 4 Remove as much power steering fluid from power steering fluid reservoir as possible. 5 Separate steering linkage outer tie rod at steering knuckle. 6 Remove power steering gear inlet hose at steering gear. 7 Remove power steering fluid cooler at steering gear. 8 Separate steering shaft coupling at steering gear. 9 Partially lower rear of drivetrain and front suspension frame to gain enough clearance to remove steering gear. 10 Remove and discard steering gear bolts (1), Fig. 1. 11 Remove steering gear (2), Fig. 1. 12 Reverse procedure to install, noting following: a. Install NEW steering gear bolts and torque to 81 ft. lbs. b. Fill and bleed power steering system. c. Measure and adjust front toe.

Fig. 1

We covers in detail the process of replacing the rack and pinion assembly, a critical component of the vehicle's steering system. The rack and pinion assembly is responsible for translating steering wheel movements into lateral movement of the front wheels, allowing for precise steering control. The manual provides step-by-step instructions for removing the old rack and pinion assembly in Chevrolet Captiva First generation (C100/C140) and installing a new one. This involves tasks such as disconnecting the steering linkage, removing the tie rod ends, and unbolting the old rack from the vehicle's frame. It also includes guidance on properly torquing bolts and ensuring proper alignment during installation to prevent steering issues. Proper maintenance of the rack and pinion assembly is also discussed in the manual, emphasizing the importance of regular inspections for leaks, damaged seals, or worn-out components. It may recommend periodic lubrication of the assembly and checking steering fluid levels to ensure optimal performance and longevity.

Overall, the Chevrolet Captiva repair manual provides comprehensive guidance on maintaining, diagnosing, and replacing the rack and pinion assembly, enabling vehicle owners and technicians to address steering system issues effectively and ensure safe and reliable steering performance.