OEM Chevrolet Express 3500 Air Bag Clockspring

Chevrolet Express 3500 Air Bag Clockspring Parts and Q&A

• Clockspring
  19330851
  Q: How to Service and Repair the Air Bag Clockspring Assembly on Chevrolet Express 3500?

  A:

  Before servicing the air bag clock spring assembly / spiral cable users must first disable air bag system functionality. The installation requires detachment of the wire harness assembly from its strap followed by release of the wire harness assembly from three straps. The service begins with the upper tilt head assembly wire harness strap removal and continues with air bag steering wheel module coil retaining clip extraction and air bag steering wheel module coil removal. During this step remove the wave washer from the steering column upper shaft. Perform assembly by setting the block tooth of the upper shaft to 12 o'clock position while fully securing all fasteners before torque application to prevent system failure. Place the wave washer onto the steering column upper shaft before checking that the air bag steering wheel module coil remains centered. The coil can become misaligned when the steering column separates from the steering gear or when the centering spring collapses. Follow standard centering methods regardless of the steering column type if the coil becomes uncentered. Firmly guide the air bag steering wheel module coil along the horn tower on the turn signal cancel cam and position the pre-centered air bag steering wheel module coil onto the steering column upper shaft. Discard the centering tab following its removal then stretch the lower coil assembly wire with care to prevent kinks so no shaft lock mechanism interference occurs. Place the steering wheel coil retaining ring where it should fit in the upper shaft's groove until it creates a firm lock. Begin installation by inserting the wire harness assembly into the wire strap then place the wire harness strap into the wire strap before securing the wire harness straps at the wire harness assembly. Completion of the air bag system activation ends the procedure by reinstalling steering column trim covers.
• Clockspring
  26097597
  Q: How to replace the Air Bag Clockspring in the steering wheel module on Chevrolet Express 3500?

  A:

  To replace the inflatable restraint Steering Wheel module coil, the sir system should be disabled first. Make sure the wheels on the vehicle are straight ahead and the steering column anti rotation pin (J 42640) is installed or the ignition switch is in lock. Take off 2 torx(R) head screws from the lower trim cover and take off the cover, if applicable, straight, remove the Steering Wheel from the Steering Shaft. Next, remove two torx(R) head screws from the upper trim cover and remove that as well. Remove the wire harness straps from the Steering Wheel column wire harness, and desparage the retainer of the air bag clock spring from the Steering Shaft and extract the coil to the Steering Shaft. In case of replacement, dispose of the old air bag clock spring. For installation, check again that the wheels are straight ahead or the steering column anti rotation pin (J42640) is installed or the ign switch is in the lock position. Make sure to center the new air bag clock spring assembly, and do not remove the centering tab until complete installation. Bring the air bag clock spring assembly into alignment with the horn tower on the way to the turn signal cancel cam assembly, slide onto the Steering Shaft assembly, firmly seat the retaining ring into the groove. Remove and discard the centering tab from the new air bag clock spring and install the upper trim cover with 2 torx(R) head screws, tightening it to 1.5 n.m (13 lb in). Next, secure the lower trim cover in place with 2 torx(R) head screws, making sure that tabs click into place, and tighten the screws to the same torque. In case of vehicles with tilt column, align & slide the tilt lever handle into the steering column until it locks. Lastly, mount the Steering Wheel to the Steering Shaft and activate the sir system.