Control Arm: Service and Repair

1990 Chevrolet Lumina APV V6-191 3.1LSECTION Service and Repair

Fig. 8 Separating Ball Joint & Steering Knuckle:




Fig. 9 Removing & Installing Control Arm Bushings:






REMOVAL
1. Raise and support vehicle.
2. Place suitable jack stands under frame.
3. Lower vehicle slightly so weight of vehicle rests on jack stands and not on control arms.
4. Remove tire and wheel assemblies. When performing any repair procedure near drive axles, care must be taken to prevent drive axle joints from being overextended. If either end of shaft is disconnected, over-extension of the joint could result in separation of internal components which could go undetected and result in failure of the joint. Drive axle joint seal protectors part No. J-34754 or equivalent should be used anytime service is performed on or near the drive axles.
5. Remove stabilizer shaft to control arm bolt, then remove pinch bolt, Fig. 8.
6. Remove control arm mounting bolts and control arm.
7. Refer to Fig. 9 to remove and install control arm bushings.

Fig. 10 Control Arm Mounting:






INSTALLATION
1. Mount control arm to frame and install mounting bolts. Do not tighten control arm nuts at this time.
2. Install stabilizer shaft bushings, Fig. 10.
3. Insert ball joint into steering knuckle, then install a new pinch bolt and nut.
4. Raise vehicle slightly so weight of vehicle is supported by the control arms. Weight of vehicle must be supported by the control arms when tightening control arm mounting nuts.
5. Torque stabilizer shaft bushing clamp nuts, control arm pivot bolt nut and ball joint pinch bolt nut to specifications.
6. Remove seal protectors, then install tire and wheel assembly.
7. Raise vehicle slightly to remove jack stands, then lower vehicle.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.