FixVault

Oil Pressure Test Plug: Removal

On models with 3.4L engine, remove the throttle body air inlet duct. On models with 3.8L engine, remove air cleaner assembly. On all models, remove the line the pressure pipe plug (38). See Fig 1 .

Fig 1: Removing & Installing Oil Pressure Test Plug
G00087720Courtesy of GENERAL MOTORS CORP.