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Mitsubishi EVO X

Mitsubishi EVO X
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15-1
GROUP 15
INTAKE AND
EXHAUST
CONTENTS
GENERAL INFORMATION . . . . . . . . 15-2
SERVICE SPECIFICATION . . . . . . . . 15-2
INTAKE AND EXHAUST DIAGNOSIS 15-2
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . 15-2
TROUBLESHOOTING STRATEGY . . . . . . 15-2
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 15-2
SYMPTOM PROCEDURES . . . . . . . . . . . . 15-3
SPECIAL TOOLS. . . . . . . . . . . . . . . . 15-4
TROUBLESHOOTING . . . . . . . . . . . . 15-4
ON-VEHICLE SERVICE. . . . . . . . . . . 15-5
MANIFOLD VACUUM CHECK . . . . . . . . . . 15-5
INTAKE CHARGE PRESSURE CHECK . . 15-5
TURBOCHARGER WASTEGATE ACTUATOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-6
INTAKE CHARGE PRESSURE CONTROL
SYSTEM CHECK . . . . . . . . . . . . . . . . . . . . 15-7
TURBOCHARGER WASTE GATE SOLENOID
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-8
TURBOCHARGER BYPASS VALVE
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-9
AIR CLEANER . . . . . . . . . . . . . . . . . . 15-10
REMOVAL AND INSTALLATION . . . . . . . . 15-10
INTAKE MANIFOLD . . . . . . . . . . . . . . 15-12
REMOVAL AND INSTALLATION . . . . . . . . 15-12
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 15-14
CHARGE AIR COOLER . . . . . . . . . . . 15-15
REMOVAL AND INSTALLATION . . . . . . . . 15-15
EXHAUST MANIFOLD AND
TURBOCHARGER . . . . . . . . . . . . . . . 15-16
REMOVAL AND INSTALLATION . . . . . . . . 15-16
INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 15-23
EXHAUST PIPE AND MAIN
MUFFLER . . . . . . . . . . . . . . . . . . . . . . 15-24
REMOVAL AND INSTALLATION . . . . . . . . 15-24
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Mitsubishi EVO X Specifications

General IconGeneral
BrandMitsubishi
ModelEVO X
CategoryAutomobile
LanguageEnglish

Summary

General Information

Overview

The exhaust pipe is divided into three parts.

Service Specification

Intake and Exhaust Diagnosis

Introduction

Intake leaks cause driveability issues; exhaust leaks cause noise due to cracks, gaskets, fittings, or damage.

Troubleshooting Strategy

A four-step strategy to plan diagnostics and find system faults effectively.

Symptom Chart

Lists common symptoms like Exhaust Leakage and Abnormal Noise with corresponding inspection procedures and reference pages.

Symptom Procedures

Detailed step-by-step diagnostic procedures for identifying and resolving exhaust leaks and abnormal noises.

Special Tools

Palm Socket

Tool MB992274 used for removing and installing the turbocharger compressor bracket.

Angle Gauge

General service tool MB991614 for installing turbocharger assembly coupling bolt and nut.

Oxygen Sensor Wrench

Tool MB991953 for removal and installation of heated oxygen sensor.

Fuel Injection Pipe Wrench

Tool MB992188 for removal and installation of No.2 air temperature sensor.

Troubleshooting

Exhaust Gas Leakage

Identifies loose joints as a probable cause and retightening as a remedy.

Abnormal Noise

Lists causes like broken baffles, hangers, or pipe interference, with remedies like repair or replacement.

On-Vehicle Service

Manifold Vacuum Check

Procedure to check manifold vacuum, referencing another group.

Intake Charge Pressure Check

Steps to measure boost pressure, check for leaks, and identify possible malfunctions.

Turbocharger Wastegate Actuator Check

Process to check the wastegate actuator by applying vacuum pressure and observing rod movement.

Intake Charge Pressure Control System Check

Checks the system's ability to maintain pressure by applying vacuum and observing hose states.

Turbocharger Waste Gate Solenoid Check

Covers operation check using vacuum pump and battery, and coil resistance measurement.

No.2 Turbocharger Wastegate Solenoid

Covers operation check and coil resistance for the second solenoid.

Turbocharger Bypass Valve Check

Procedure to check the turbocharger bypass valve operation by applying negative pressure.

Air Cleaner

Removal and Installation

Detailed steps and diagrams for removing and installing the air cleaner assembly.

Mass Airflow Sensor Installation

Specific installation advice for the mass airflow sensor to prevent thread damage.

Intake Manifold

Removal and Installation

Comprehensive steps for removing and installing the intake manifold, including pre- and post-operations.

No.2 Intake Air Temperature Sensor Removal

Specific procedure using a special tool to remove the No.2 intake air temperature sensor.

No.2 Intake Air Temperature Sensor Installation

Specific procedure using a special tool to install the No.2 intake air temperature sensor to specified torque.

Intake Manifold Check

Inspection steps to check the intake manifold for damage, cracks, or clogging.

Charge Air Cooler

Removal and Installation

Detailed steps and diagrams for removing and installing the charge air cooler components.

Exhaust Manifold and Turbocharger

Removal and Installation

Outlines pre-removal and post-installation operations for the exhaust manifold and turbocharger.

Turbocharger Compressor Bracket Removal

Specific service point for removing the turbocharger compressor bracket using a special tool.

Waste Gate Actuator Removal

Cautionary note for removing the waste gate actuator, advising not to loosen adjustment parts.

Turbocharger Oil Feed Tube Removal

Cautionary note for removing the turbocharger oil feed tube to prevent foreign object contamination.

Turbocharger Installation

Installation steps for turbocharger components, including cleaning passages and refilling oil.

Turbocharger Oil Return Tube Gasket Installation

Installation instruction for the oil return tube gasket, noting the correct protrusion direction.

Turbocharger BracketTurbocharger Bracket and Turbocharger Assembly Coupling Bolt Installation

Steps for installing turbocharger bracket and assembly coupling bolts with specified torques.

Exhaust Manifold and Turbocharger Assembly Coupling Bolt and Nut Installation

Procedure for tightening exhaust manifold and turbocharger assembly coupling bolts and nuts, including washer placement.

Turbocharger Exhaust Outlet Fitting Bracket Installation

Steps for installing the exhaust outlet fitting bracket, ensuring contact and tightening to specified torques.

Turbocharger Compressor Bracket Installation

Steps for installing the turbocharger compressor bracket, ensuring contact and tightening to specified torques.

Exhaust Manifold Check

Inspection of the exhaust manifold for damage, cracks, and distortion on mating surfaces.

Turbocharger Assembly Check

Visual checks of turbocharger wheels, bearing play, oil leaks, and waste gate regulating valve operation.

Exhaust Pipe and Main Muffler

Removal and Installation

Comprehensive steps for removing and installing exhaust system components like mufflers and pipes.

Heated Oxygen Sensor Removal

Specific service point for removing the heated oxygen sensor using a specialized wrench.

RivetFront Floor Rear Panel Heat ProtectorFront Floor Front Panel Heat Protector Removal

Procedure for removing rivets and heat protectors from the front and rear floor panels.

RivetFront Floor Front Panel Heat ProtectorFront Floor Rear Panel Heat ProtectorRivet Installation

Procedure for installing rivets and heat protectors on front and rear floor panels using a riveter.

Heated Oxygen Sensor Installation

Procedure to install the heated oxygen sensor to the specified torque using a special tool.

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