Subject: Air Ventilator Control Cables
Model and Year: 1965 Corvette
Source: Chevrolet Service Bulletin - #41, Wichita, Kansas Zone
Bulletin Number: 9
Date: April 7, 1965
On early production Corvettes, difficulty may be experienced in closing the ventilator valves. This could be due to the loosening of the steel tubing at the crimped area of the control cables.
New cable assemblies which incorporate larger crimping areas, entered production approximately 1-4-65.
If the problem is encountered, it can be resolved by replacing the original control cable with the new style cable available for service as listed below.
| New Cable | Old Cable | Usage |
| 3874729-30 | 3857603-4 | Cowl Air Vent Control (Exc. A/Cond.) |
| 3874732 | 3857606 | Cowl Air Vent Control (With A/Cond.) |
| 387431 | 3857605 | Roof Vent Valve Control (Exc. A/Cond.) |
| 387433 | 3857607 | Roof Vent Valve Control (With A/Cond.) |
Yours very truly,
R.G. Jordan
Zone Service Manager
Article ID: 1250
Created: September 26, 2015
Last Updated: September 26, 2015
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1965-corvette-service-bulletin-air-ventilator-control-cables-1250.html