1984 - 1987 Corvette: Service Bulletin: Rattle From Turn Signal Lever
Subject: Rattle From Turn Signal Lever
Model and Year: 1983 - 1987 Chevrolet Vehicles with Multi-Function Turn Signal Levers
Source: Chevrolet Dealer Service Bulletin
Bulletin Number: 87-224, Section 10
Date: Oct., 1987
TO: ALL CHEVROLET DEALERS
A rattle-type noise originating from the multi-function turn signal lever may be caused by excess looseness or play in the windshield washer actuator paddle.
This condition can be repaired by installing a foam rubber "donut" on the lever using the following procedure:
- Make sure the lever is in the center or "off" position (turn signal not on).
- Make sure that the windshield wiper switch is set to the "off" position. This must be done to prevent damage to the windshield wiper switch.
- Pull the lever straight out from the column, using care not to pull any excess amount of wire from the column on cars equipped with cruise control.
- Check the inner end of the lever for presence of a previously installed foam "donut". Also check in the steering column opening for a "donut" which may have been mis-installed during assembly.
- If a "donut" is present, and it is not damaged, it can be re-installed. If the "donut" is damaged or missing, a new part can be obtained through GMSPO:
Part Number - 22524202
Description - Insulator Turn signal Switch Lever
- Install the foam "donut" to the turn signal lever as shown on the illustration, making sure that the "donut" is positioned over the two (2) protrusions at the end of the windshield washer paddle and flush against the shoulder of the paddle. NOTICE: The "donut" has a glossy appearance at one end. It may be easier to install the "donut" with the glossy end AWAY from the shoulder of the paddle.
- Re-assemble the turn signal lever assembly to the steering column by pushing it back into the turn signal switch. Check the lever for proper function of all switches.
Chevrolet Motor Division
General Motors Corporation