🏷️ Basic Information

Make:

Toyota

Model:

Sienna

Model Years Covered:

2004, 2005, 2006, 2007, 2008

Generation Code:

XV20 (1998-2003) transition to XV30 (2004-2006) and XV40 (2007-2010) for later years within this range, implying coverage of early XV40 models.

Chassis Codes:

XV30 (2004-2006), XV40 (2007-2008)

👋 Introduction

Target Audience:

Do-it-yourself enthusiasts and experienced mechanics.

Value Proposition:

Inexpensive way to keep your vehicle working properly, enabling DIY repairs and significant cost savings.

Detail Level:

Detailed illustrations, diagrams, wiring schematics, and specifications; step-by-step instructions based on complete disassembly.

Illustration Count:

Hundreds of photos and illustrations.

📋 Manual Details

Comprehensive Coverage:

All models and all engines within the specified production years.

Total Pages:

3000+

Manual Classification:

Complete Service Repair Manual

Language:

English

Digital Format:

PDF

Compatibility:

Windows, Mac, Linux, iOS (iPhone, iPad), Android

📖 Manual Coverage

Powertrain:

Engine overhaul and rebuilding, timing belt replacement, engine performance, firing orders, serpentine belt routings, timing belt service procedures, transmission removal and installation, transmission in-car servicing.

Brakes And Suspension:

Brakes, front end and alignment procedures and specifications, suspension, U-joint and CV-joint service procedures, brake servicing procedures.

Electrical And Diagnostics:

Wiring diagrams, trouble codes, troubleshooting and diagnostics, computer diagnostic trouble tree charts, computer diagnostic codes.

Comfort And Body:

Sunroof, air conditioning service and capacities.

Maintenance:

Factory maintenance schedules and charts, driving concerns.

Repair And Rebuild:

Every detail on repair, maintain, rebuild, refurbish, or restore; step-by-step instructions based on complete disassembly, detailed illustrations, diagrams.

Diagnostic Scope:

Advanced diagnostics, including computer diagnostic trouble trees and specific trouble codes.

Repair Scope:

From basic maintenance to complete engine and transmission overhauls, including component-specific servicing.

📊 Manual Specifications

Digital Delivery:

Instant Download

File Features:

Bookmarked and searchable text for quick navigation.

Storage Options:

Save to hard drive, burn to CD-ROM.

Viewing Capabilities:

Zoomable, printable pages.

Page Completeness:

100% complete and intact, no missing/corrupt pages/sections.

Digital Binding:

N/A (Digital Format)

Digital Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

V6, 3.3L (3300cc) or 3.5L (3500cc) DOHC VVT-i (Variable Valve Timing with intelligence), depending on specific model year and trim.

Engine Code Examples:

3MZ-FE (3.3L), 2GR-FE (3.5L - introduced in later years within the range)

Horsepower Range:

Approximately 182-215 hp (varies by engine and year)

Torque Range:

Approximately 215-230 lb-ft (varies by engine and year)

Fuel Delivery:

Electronic Fuel Injection (EFI) with Sequential Port Injection.

Timing Belt Material:

Timing Belt (typically rubber composite)

Serpentine Belt Routing:

Detailed diagrams provided in the manual.

🔧 Transmission

Transmission Type:

Automatic Transmission

Transmission Gears:

Typically 4-speed or 5-speed automatic (e.g., U151F for 4-speed, U250E for 5-speed)

Drivetrain Options:

Front-Wheel Drive (FWD) and All-Wheel Drive (AWD) available on select models.

Transmission Service:

In-car servicing procedures covered.

📐 Dimensions

Body Styles:

Minivan

Wheelbase Range:

Approximately 119.3 inches (XV30) to 120.5 inches (XV40).

Curb Weight Range:

Approximately 4,000 - 4,400 lbs (varies by configuration).

🛡️ Safety Features

NHTSA Ratings General:

Generally received good ratings from NHTSA for this period, though specific year ratings should be verified.

Braking Systems:

Anti-lock Braking System (ABS) standard, Electronic Brake-force Distribution (EBD), Brake Assist (BA).

Airbags:

Front airbags, side curtain airbags, available front-seat mounted side airbags.

💡 Technology Features

Entertainment Systems:

Available premium audio systems, CD players, rear-seat entertainment systems (DVD players).

Cruise Control:

Standard cruise control, some models may offer adaptive cruise control on later iterations within the range.

Navigation:

Optional factory navigation system.

🔧 Maintenance

Oil Change Interval:

Typically 5,000 to 7,500 miles or 6 months, using synthetic or synthetic blend oil, as specified in the manual.

Timing Belt Replacement Interval:

Recommended replacement around 90,000 miles or 7 years for most engines, check specific engine for exact interval.

Engine Oil Type:

SAE 5W-30 Synthetic or Synthetic Blend recommended, specific API service classification required (e.g., API SN).

Transmission Fluid Type:

Toyota Genuine ATF WS (World Standard) or equivalent Dexron III/VI compatible fluid, verify specific transmission requirement.

Coolant Type:

Toyota Super Long Life Coolant (SLLC) - Pink color.

Common Problems:

Potential for sliding door actuator issues, catalytic converter failure (especially on older models), minor electrical gremlins, potential for oil leaks from valve covers or oil pan, brake wear.

Diagnostic Challenges:

The manual's diagnostic flowcharts are crucial for pinpointing issues with the complex electronic systems.

📚 Vehicle History

Toyota Legacy:

Toyota's reputation for reliability, quality, and value.

Sienna Development:

The 2004 model year marked a significant redesign, moving from the XV20 to the XV30 platform. The 2007 model year introduced a further refresh and transition to the XV40 platform, bringing updated styling, powertrains, and features.

Manufacturing Location:

Princeton, Indiana, USA.

🏆 Awards & Recognition

Consumer Reports Rankings:

Toyota Sienna consistently ranks high in reliability and family-friendliness in consumer reports for this era.

IIHS Safety Awards:

Likely achieved good ratings from IIHS, indicating solid crashworthiness for its class.