Key Competitors:
Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion, Chevrolet Malibu
Design Philosophy:
The 8th generation Galant (2004-2008) presented a bolder, more aerodynamic design with a focus on improved interior comfort and refined driving dynamics.
Manual Value Proposition:
This manual is the definitive resource for technicians and DIY enthusiasts, providing the exact same information used by dealership service departments, ensuring accurate and efficient repairs.
Primary Coverage:
2004, 2005, 2006, 2007, 2008 Model Years
Model Variants:
All Trim Levels and Engine Configurations
Estimated Page Count:
1500+
Type:
Factory Service Manual (FSM) / Repair Manual
Powertrain:
Engine, Fuel System, Exhaust System, Transmission (Automatic & Manual), Drivetrain (FWD/AWD)
Chassis:
Suspension (Front & Rear), Steering System, Braking System (ABS, EBD), Wheels & Tires
Electrical:
Battery, Charging System, Starting System, Ignition System, Lighting, Instruments & Gauges, Body Electrical, Powertrain Control Module (PCM), Diagnostic Trouble Codes (DTCs)
Body & Interior:
Body Panels, Doors, Windows, Seats, HVAC (Heating, Ventilation, Air Conditioning), Restraint Systems (Airbags, Seatbelts)
Maintenance:
Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication
Diagnosis:
Troubleshooting Flowcharts, Symptom-Based Diagnostics, DTC Interpretation, Electrical Schematics
Repair:
Component Removal & Installation, Engine Overhaul, Transmission Rebuild, Brake Service, Suspension Repair, Electrical Component Replacement
Calibration & Adjustment:
Wheel Alignment, Steering Angle Sensor Calibration, Idle Speed Adjustment
Depth:
Comprehensive: From basic fluid checks to complete engine and transmission rebuilds, including advanced diagnostics and electrical system tracing.
Engine Code 1:
4G64 (2.4L SOHC I4)
Bore X Stroke 1:
86.5 mm x 100.0 mm
Compression Ratio 1:
9.5:1
Horsepower 1:
160 hp @ 5500 rpm
Torque 1:
157 lb-ft @ 4000 rpm
Engine Code 2:
6G72 (3.0L SOHC V6)
Bore X Stroke 2:
91.1 mm x 76.0 mm
Compression Ratio 2:
9.0:1
Horsepower 2:
197 hp @ 5500 rpm
Torque 2:
205 lb-ft @ 4000 rpm
Fuel Delivery:
Electronic Fuel Injection (MPI)
Fuel Type:
Unleaded Regular (87 Octane Recommended)
4G64 Timing:
Timing Belt (Service Interval: 60,000 - 90,000 miles or 5-7 years)
6G72 Timing:
Timing Belt (Service Interval: 60,000 - 90,000 miles or 5-7 years)
Transmission Type 1:
4-Speed Automatic (F4A51)
Transmission Type 2:
5-Speed Manual (KM132, rare for this generation)
Automatic Transmission Features:
Adaptive Shift Control, Sport Mode (on some trims)
Automatic Transmission Fluid:
DIAQueen SP-III or equivalent DEXRON-III/MERCON (Check owner's manual for exact specification)
Manual Transmission Fluid:
API GL-3 or GL-4, SAE 75W-90 Gear Oil
NHTSA Front Impact Driver:
Good
NHTSA Front Impact Passenger:
Good
NHTSA Side Impact Front Driver:
Good
NHTSA Side Impact Front Passenger:
Good
NHTSA Side Impact Rear Driver:
Good
NHTSA Side Impact Rear Passenger:
Good
ABS:
Standard (Anti-lock Braking System)
Ebd:
Standard (Electronic Brakeforce Distribution)
Traction Control:
Optional (TCS)
Airbags Front:
Standard (Driver and Passenger)
Airbags Side:
Optional (Front Seat Side Airbags)
Seatbelts:
Front Pretensioners and Load Limiters, Rear 3-Point Belts
Audio System:
AM/FM stereo with CD player, optional Rockford Fosgate premium audio system.
Navigation:
Optional factory navigation system.
Stability Control:
Optional (Active Stability Control - ASC)
Power Accessories:
Power windows, power door locks, power mirrors.
Keyless Entry:
Standard or Optional depending on trim level.
Oil Change Interval:
Every 3,750 miles or 3 months (severe duty) / 7,500 miles or 6 months (normal duty)
Engine Air Filter Replacement:
Every 15,000 - 30,000 miles or 12-24 months
Cabin Air Filter Replacement:
Every 12,000 - 15,000 miles or 12 months
Spark Plug Replacement 4G64:
Iridium: 105,000 miles; Platinum: 60,000 miles
Spark Plug Replacement 6G72:
Platinum: 60,000 miles
Engine Oil Spec:
SAE 5W-30 (API SM or newer)
Engine Oil Capacity 4G64:
4.5 US quarts (4.3 L) with filter change
Engine Oil Capacity 6G72:
4.5 US quarts (4.3 L) with filter change
Coolant Type:
Long-life coolant (DIA QUEEN SUPER LONG LIFE COOLANT or equivalent)
Common Issue 1:
Transmission issues (harsh shifting, slipping) on higher mileage examples, especially with infrequent fluid changes.
Common Issue 2:
Engine oil leaks, particularly from valve cover gaskets and oil pan gaskets.
Common Issue 3:
Power steering pump leaks or noise.
Common Issue 4:
Catalytic converter issues or check engine lights related to emissions systems.
Common Issue 5:
CV joint wear and failure, especially on AWD models.
Mitsubishi History:
Mitsubishi Motors, a subsidiary of the Mitsubishi Group, has a long history in automotive manufacturing, known for robust engineering and often innovative designs.
Galant Evolution:
The Galant nameplate has been used by Mitsubishi since 1969, evolving through numerous generations with significant design and engineering changes. The 8th generation (1996-2006 in Japan, 2004-2008 in North America) was a substantial redesign focused on global market appeal and a more premium feel.
Production Years North America:
2004-2008
Manufacturing Plant:
North American production typically occurred in Normal, Illinois, USA.