Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 2009 >> Colorado 2WD L5-3.7L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Transmission Pressure Test Port >> Service and Repair
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

Transmission Pressure Test Port: Service and Repair




Automatic Transmission Fluid Pressure Test Hole Plug Replacement

Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).




2. Remove the oil pressure test plug.

Installation Procedure





Caution: Refer to Component Fastener Tightening Caution (Component Fastener Tightening Caution).

1. Install an oil pressure test plug and tighten to 8 Nm (71 lb in).
2. Check the transmission fluid level, fill if necessary. Refer to Transmission Fluid Check (Transmission Fluid Checking Procedure).
3. Lower the vehicle.

pro multis · About Operation CHARM