Operation CHARM: Car repair manuals for everyone.
Home >> Hummer >> 2006 >> H3 L5-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Service and Repair >> Overhaul >> 12. Oil Pump Removal
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

12. Oil Pump Removal



Oil Pump Removal
^ Tools Required
- J 37789-A Oil Pump Remover/Installer
- J 39119 Oil Pump Remover/Installer Adapter





1. Remove all pump bolts (2) and pump bolt seal (3).
2. Install J 39119 (4) over stator shaft until it locks under splines.
3. Install J 37789-A (1).





4. To prevent slipping, securely fasten the J 37789-A around the J 39119 by tightening the bolt (1) with a wrench.
5. Turn the T-handle on top of J 37789-A.
6. Lift the pump (4) out of the case.





7. Remove the fluid pump seal (5).
8. Remove the pump cover to case gasket (6).
pro multis · About Operation CHARM