Engine Control Module (ECM) Diagnostic Trouble Codes - 4 of 13: Removal & Installation Volvo XC90 I

REMOVAL

PREPARATIONS

Check that all hoses are undamaged. Check that all hoses are in place with their hose clips tightened.

CONNECT THE TEST PRESSURIZATION EQUIPMENT

Scheme 154

Remove

1. the hose clamp (2) between the mass air flow (MAF) sensor and the intake manifold for the turbocharger (TC)
2. the screws for the intake manifold. Fold the pipe up. Connect tool see «9995545»(ref-460875-S13072719582012033000000) and pressure regulator see «9995544»(ref-460875-S38373049682012033000000) to the intake manifold. Tighten the hose clamp.

CHECK

Scheme 155

Remove the oil filler cap. Connect the compressed air hose. Adjust the regulator to obtain a maximum pressure of 0.3 bar .

There may be a gentle hissing sound from the oil filler opening. This is due to the opening of an intake valve and the leakage of cylinder pressure past the piston rings. If a leak is suspected, spray a soap solution onto the area. Remedy any leakage.

INSTALLATION

INSTALLING COMPONENTS

Install

1. the intake manifold between the mass air flow (MAF) sensor and the turbocharger (TC)
2. the screws for the intake manifold. Tighten
3. the hose clamp (2) at the mass air flow (MAF) sensor.