🏷️ Basic Information

Make:

Mitsubishi

Model:

Lancer

Year:

2004

Market:

North America

Vin Prefix Ja3Aj16E:

Implies a Mitsubishi vehicle manufactured in the United States, likely with a 2.0L engine and potentially a specific trim level.

Vin Prefix Ja3Aj26E:

Implies a Mitsubishi vehicle manufactured in the United States, likely with a 2.0L engine and potentially a different trim level or transmission.

Vin Prefix Ja3Aj36E:

Implies a Mitsubishi vehicle manufactured in the United States, likely with a 2.0L engine and potentially another specific trim level.

Vin Prefix Ja3Aj86E:

Implies a Mitsubishi vehicle manufactured in the United States, likely with a 2.4L engine and potentially a specific trim level.

Vin Prefix Ja3Aj66F:

Implies a Mitsubishi vehicle manufactured in the United States, likely with a 2.4L engine and potentially a different transmission or trim level.

👋 Introduction

Vehicle Class:

Compact car. The 2004 Lancer was positioned as an affordable, reliable, and sporty option in its segment.

Competitors:

Competed against vehicles like the Honda Civic, Toyota Corolla, Nissan Sentra, Ford Focus, and Chevrolet Cavalier.

Design And Styling:

Offered a relatively stylish and modern design for its era, with a more aggressive front fascia compared to some competitors.

Engine Options:

Provided choice between economical 2.0L and more powerful 2.4L engines, catering to different consumer needs.

Sporty Variants:

The O-Z Rally edition offered visual enhancements, and the Ralliart model provided performance upgrades, appealing to enthusiasts.

📋 Manual Details

Engine Variants Covered:

4G94 (2.0L), 4G69 (2.4L)

Transmission Types Covered:

Both manual and automatic transmissions are typically covered for the specified engine variants.

Model Years Covered:

2004 (Specifically stated in product name)

Trim Levels Covered:

Likely covers all major trim levels offered for the 2004 Lancer, including ES, LS, O-Z Rally, and possibly Ralliart (depending on the manual's scope).

Estimated Page Count:

Typically 1500-2500 pages for a comprehensive factory service manual, though the 'download' format might be slightly different. Specific count unavailable from product info.

Type:

Service Repair Manual

Language:

English

Format:

Digital Download (PDF likely)

📖 Manual Coverage

Powertrain:

Engine mechanical (including timing belt/chain, cylinder head, block, pistons, crankshaft), fuel system, ignition system, exhaust system, cooling system, lubrication system, engine electricals.

Drivetrain:

Transmission (manual and automatic), clutch, driveshafts, axles, differential, transfer case (if applicable).

Chassis:

Suspension (front and rear), steering system, brake system (front and rear disc, ABS), wheels and tires.

Electrical:

Battery, charging system, starting system, lighting, instrument cluster, power windows, power locks, wipers, horn, fuses, relays, body control modules, wiring diagrams.

Body And Interior:

Body panels, doors, windows, seats, upholstery, HVAC system, body exterior trim, interior trim, bumpers.

Maintenance:

Scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug replacement, belt replacement.

Diagnostics And Troubleshooting:

Diagnostic trouble codes (DTCs), symptom-based troubleshooting, component testing procedures, electrical system diagnostics.

Repair And Rebuild:

Detailed step-by-step repair procedures for all major systems, including engine component overhaul, transmission disassembly/assembly, brake caliper replacement, suspension component replacement.

Specifications And Data:

Torque specifications, clearance specifications, diagnostic values, fluid capacities, part numbers (often integrated or referenced).

Alignment And Adjustments:

Wheel alignment specifications, brake adjustment procedures, clutch adjustment (if applicable).

Depth:

Comprehensive: Covers everything from basic maintenance to complete engine and transmission overhauls, including detailed diagnostic trees and electrical schematics.

📊 Manual Specifications

Digital Format:

Likely PDF. Expect searchable text, high-resolution images, and printable pages. Quality of scans can vary but is usually good for factory manuals.

Digital Image Quality:

High resolution, enabling clear viewing of diagrams and text. Adobe Acrobat Reader or compatible PDF viewer is required.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code 4G94:

4G94

Displacement 4G94:

2.0 Liters (1997 cc)

Configuration 4G94:

Inline-4 cylinder, SOHC or DOHC (depending on specific application).

Bore X Stroke 4G94:

81.0 mm x 95.0 mm (typical)

Compression Ratio 4G94:

Approx. 9.5:1 or 10.0:1

Horsepower 4G94:

Approx. 120-135 hp @ 5500-6000 rpm (depending on specific tune).

Torque 4G94:

Approx. 130-135 lb-ft @ 4000 rpm.

Engine Code 4G69:

4G69

Displacement 4G69:

2.4 Liters (2378 cc)

Configuration 4G69:

Inline-4 cylinder, SOHC with MIVEC (Mitsubishi Innovative Valve timing Electronic Control) on some variants.

Bore X Stroke 4G69:

87.0 mm x 99.0 mm (typical)

Compression Ratio 4G69:

Approx. 9.5:1

Horsepower 4G69:

Approx. 160 hp @ 5500-6000 rpm.

Torque 4G69:

Approx. 165 lb-ft @ 4000 rpm.

Type:

Multi-point fuel injection (MPI), electronically controlled.

Recommended Fuel:

87 octane unleaded gasoline.

ECU:

Engine Control Unit (ECU) manages fuel injection, ignition timing, and other engine functions.

Emissions Control:

Catalytic converter, oxygen sensors, EGR system (on some variants).

🔧 Transmission

Type 2.0L:

5-speed manual transmission.

Type 2.0L And 2.4L:

4-speed INVECS-II automatic transmission with torque converter (optional on 2.0L, likely standard or optional on 2.4L depending on trim).

Automatic Transmission Features:

Adaptive shift control, torque converter lock-up for improved efficiency. Sportronic mode may be available on some automatic transmissions, allowing manual gear selection.

Manual Transmission Fluid:

API GL-3 or GL-4, SAE 75W-85 or 75W-90 gear oil (refer to manual for exact spec).

Automatic Transmission Fluid:

Mitsubishi DiaQueen ATF SP-III (or equivalent).

📐 Dimensions

Length:

Approx. 177.4 inches (4505 mm)

Width:

Approx. 67.7 inches (1720 mm)

Height:

Approx. 56.1 inches (1425 mm)

Wheelbase:

Approx. 102.4 inches (2600 mm)

Wheel Bolt Pattern:

4x100 mm or 5x114.3 mm (verify based on specific trim/engine - 5x114.3mm is more common for this generation).

Curb Weight:

Approx. 2800-3100 lbs (1270-1406 kg), varies significantly with engine and transmission.

Gross Vehicle Weight Rating Gvwr:

Varies by model, typically around 3800-4000 lbs (1724-1814 kg).

🛡️ Safety Features

NHTSA Front Impact Driver:

4-star (for 2004 models equipped with side airbags).

NHTSA Front Impact Passenger:

4-star (for 2004 models equipped with side airbags).

IIHS Frontal Offset:

Good (for 2004 models, generally)

ABS:

Standard on higher trims, optional on base models. Anti-lock Braking System.

Traction Control:

Optional on some models, often paired with ABS.

Airbags:

Front airbags standard. Side curtain airbags and front seat-mounted side airbags optional or standard on higher trims.

Seatbelts:

Three-point seatbelts with pretensioners and load limiters for front occupants. Three-point rear seatbelts for all rear positions.

💡 Technology Features

Audio System:

Factory radio with AM/FM, CD player. Some models may have premium audio systems with more speakers. Steering wheel audio controls available on higher trims.

Display:

Basic digital or analog display for radio information. No touchscreens or advanced navigation on standard models.

Cruise Control:

Available on most models, especially higher trims.

Keyless Entry:

Optional on many models, standard on higher trims.

Auxiliary Input:

Typically not standard. Aftermarket solutions or specific trim levels might offer auxiliary input or cassette adapter compatibility.

🔧 Maintenance

Oil Change:

Every 3,750 to 5,000 miles or 6 months, whichever comes first (refer to manual for specific oil type and interval).

Air Filter Replacement:

Every 15,000-30,000 miles or as needed, depending on driving conditions.

Cabin Air Filter Replacement:

Every 15,000-30,000 miles or annually.

Spark Plug Replacement:

Approx. 60,000-100,000 miles for iridium spark plugs (check specific type). Older copper plugs may require more frequent replacement.

Timing Belt Replacement:

For 4G94 engine (if belt-driven): Approx. 60,000-90,000 miles or 5-7 years. The 4G69 engine is typically timing chain driven, requiring less frequent attention, but still requires checks.

Engine Oil Type:

API Service SG, SH, SJ, SL or ILSAC GF-2, GF-3. Viscosity: 5W-30 or 10W-30 (check manual for exact temperature range recommendations).

Engine Oil Capacity:

Approx. 4.5 US quarts (4.3 L) with filter for 2.0L; Approx. 4.8 US quarts (4.5 L) with filter for 2.4L. (Verify with manual).

Coolant Type:

Mitsubishi Super Long Life Coolant (LLC) or equivalent ethylene glycol-based coolant, pre-diluted 50/50 with distilled water. Green or Pink coolant depending on original fill.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Engine Mounts:

Engine mounts can wear and tear over time, leading to vibration and knocking noises.

Suspension Components:

Worn ball joints, tie rod ends, and bushings can cause steering looseness and noise.

Catalytic Converter:

Premature failure or clogging of the catalytic converter can occur, especially if the engine has misfires or burns oil.

Automatic Transmission:

Some automatic transmissions might experience harsh shifting or slipping, often related to fluid degradation or solenoids.

A C System:

Leaking AC components (compressor, hoses) can lead to loss of refrigerant and cooling.

📚 Vehicle History

Mitsubishi History:

Mitsubishi Motors is a Japanese multinational automotive manufacturer with a long history of producing reliable and innovative vehicles, known for its Lancer Evolution performance variants.

Lancer Evolution:

The Lancer nameplate has been in production since 1973. The 2004 model is part of the seventh generation (CS/CT chassis) of the standard Lancer, which debuted in 2000. This generation also spawned the iconic Lancer Evolution VIII.

Manufacturing Location:

North American models were primarily assembled in the United States (Illinois) by Mitsubishi Motors North America, Inc. (MMNA).

Production Years Seventh Gen:

2000-2007 (with facelifts in 2002 and 2004/2005).