Service Procedure

1. Inspect vehicle for lock-seal dipstick (Figure 1) as installed in campaign 90C35, dated January, 1992. If this lock-seal dipstick is not present, it should be obtained through GMSPO and campaign 90C35 completed.

2. Raise vehicle on hoist.





3. Inspect existing transmission vent tube (Figure 2) to be certain it is not plugged with dirt or debris. Clean if necessary.

Notice:
It is important that this vent tube is open. If this tube is plugged, premature transmission seal failure may result.

4. Lube inner diameter of vent hose with a small amount of clean transmission fluid and install it over existing vent tube until secure.

Notice:
This vent hose is constructed of fuel line rated material. Use of any other type hose is discouraged as it may deteriorate in this application.

5. Locate vent hose as shown in Figure 2 and secure it to transmission wiring harness with tie strap.

6. Install Campaign Identification label.