| Subject: | Delayed Front Windshield Washer Fluid Spray (Install Windshield Washer Check Valve) | 
| Models: | 2006-2007 Buick Rainier | 
| 2006-2008 Chevrolet TrailBlazer Models | 
| 2006-2008 GMC Envoy Models | 
| 2006-2008 Saab 9-7X | 
This bulletin is being revised to add the Saab 9-7X model and Saab Warranty Information. Please discard Corporate Bulletin Number 06-08-43-002A (Section 08 -- Body and Accessories).
Do This  | Don't Do This  | 
|---|---|
Install a windshield washer check valve.  | Do not replace the windshield washer pump.  | 
Some customers may comment on a delayed windshield washer fluid spray with the wipers going through a few cycles before liquid is squirted through the washer nozzles.
The windshield washer pump may lose pump prime when the washer fluid level is approximately 1/3 or less in the windshield washer container.
Technicians are to install a windshield washer check valve in place of the barbed fitting at the front windshield washer hose following the steps below:
Important: The new windshield washer check valve may be installed in any direction.
Part Number  | Description  | Qty  | 
|---|---|---|
24024822  | Hose, Windshield Washer Check Valve  | 1  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
B1790  | Hoses, Nozzles Or Stops, Wiper Front - Repair Or Replace  | Use Published Labor Operation Time  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Failed Object  | Fault/Reason Code  | Location Code  | Warranty Type  | Repair/Action Code  | Labor Time  | 
|---|---|---|---|---|---|---|---|
3635601  | Hoses, Nozzles Or Stops, Wiper Front - Repair Or Replace  | 36356  | 71  | 01  | 01  | 01 (Replace) 05 (Repair)  | Use Published Labor Operation Time  |