Pontiac Turn Signal Repair - Directional Stability - Problem Solver Tech

Our subject '64 GTO has an aftermarket Grant steering wheel, which employs an adapter under it to mate it to the column. A Pontiac wheel wouldn't have this piece and would need to be pulled from the splined shaft with a steering wheel pulling tool.

With the Grant wheel, the puller was used on the adapter. Conversely, with a Pontiac wheel, the horn button would need to be removed first, followed by the large nut that holds the wheel onto the shaft. After this step, the puller can be mounted.

Once the wheel is off, you will find the cancel cam/horn grounding contacts with a spring that rests on top. The spring lifts up by hand and needs to be placed safely on the side to be reinstalled before the steering wheel is replaced.

When the spring is removed, this is what you will see. The cancel cam/horn contact is slipped over the steering shaft.

The directional stalk either before or after the cam and spring is detached next. The stalk attaches to the directional switch with a single Phillips screw.

The directional switch is now visible. The plastic follower rides on the cancel cam and shuts the blinker off when the steering wheel is returned to center.

As seen here, the follower is made of plastic and has cracked from age, abuse and just getting tired. When this occurs, the directional will not self-cancel after a turn.

The steering column was then turned over to remove the clip that retains the wiring harness. This can be done with a screwdriver. (Be careful not to break the clip since it's almost impossible to purchase.)

There was enough slack in the wire, so the directional switch was unplugged from the main wiring harness. If there's not sufficient movement, this step will have to be revisited once the switch is unfastened.