Slips in Reverse and First Gear Only. Chevrolet Chevrolet C-Series Medium Duty Truck B7 2000

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2000 🢒 Chevrolet C-Series Medium Duty Truck B7 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 Slips in Reverse and First Gear Only

Problem	Action
The first clutch is slipping.	Overhaul the clutch. Replace the piston seals. Refer to Allison service manuals.
The piston seal rings are cut.	Replace the seal rings. Refer to Allison service manuals.
The clutch-apply oil feed tube is loose or leaking.	Reset or replace the feed tube. Refer to Allison service manuals.

Problem

Action

The first clutch is slipping.

Refer to Allison service manuals.

The piston seal rings are cut.

Replace the seal rings. Refer to Allison service manuals.

The clutch-apply oil feed tube is loose or leaking.

Reset or replace the feed tube. Refer to Allison service manuals.