GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2003
🢒
TopKick C-Series (Conventional) C4/C5
🢒
Transmission/Transaxle
🢒
Automatic Transmission - Allison
🢒 Transmission Vent Removal
Gently pry the vent (2) from the transmission case.
If the vent cap (1) comes off, gently pry the stem from the transmission case.