Reduced Windshield Washer Flow (Reroute Chafed Washer Hose)

Some customers may comment on a reduced windshield washer flow.

For vehicles built prior to August 3rd, 2007, this may be caused by a chafed washer hose under the cowl vent.

Currently there are two designs for the washer hose routing. Determine which design the vehicle has using the procedure below.

1. Inspect the washer hose for correct routing.




•	If the routing is as shown above (First design), refer to Step 2.





•	If the routing is as shown above (Second design), the condition is not due to a chafed hose -- continue with normal diagnosis.

2. Remove the air inlet grille panel. Refer to Air Inlet Panel Replacement in SI.



3. Using an 8 mm (5/16 in) drill bit, drill a hole into the air inlet panel. Measure over from old location (1), 100 mm (4 in), to the new location (2).
4. Replace the damaged section of washer hose and re-route the hose to avoid future damage.
5. Reinstall the air inlet panel. Refer to Air Inlet Panel Replacement in SI.
6. Reroute the washer hose and cut to fit, if required.

Dealers can obtain a rubber hose locally or order from GM SPO as P/N 94000574. The hose is 4mm Internal Diameter (ID) and 7mm Outer Diameter (OD).

Each roll of bulk material will service 6 vehicles. Only sell the used portion to the repair.

For vehicles repaired under warranty, use: