Kia Sorento 2003-2010 3.5L V6 Engine Engine Specifications
Kia Sorento 2003-2010

Kia Sorento 2003-2010 3.5L V6 Engine Specifications

Explore detailed technical specifications for the 3.5L V6 engine in the 2003-2010 Kia Sorento. This guide covers performance metrics, maintenance tips, and compatibility information for owners and technicians.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.5L V6 engine used in the 2003-2010 Kia Sorento. It is designed to assist users in understanding the engine's features, performance, and maintenance requirements. The content is organized into sections for easy navigation, with subsections breaking down specific aspects of the engine. Use the search functionality to find specific terms or navigate through sections to explore detailed information.

How to Use

Use the search bar to enter keywords related to the engine specifications or features. The search will highlight relevant sections and subsections for quick access.

Scroll through the document or use the table of contents to jump to specific sections. Each section is divided into subsections for detailed information on the 3.5L V6 engine.

Key Specifications

Horsepower

262 hp @ 6000 rpm

Torque

253 lb-ft @ 3500 rpm

Displacement

3.5 liters (3497 cc)

Fuel Efficiency

18 mpg combined

Oil Capacity

5.5 quarts

Available Specifications

Engine Performance

This section covers the performance characteristics of the 3.5L V6 engine, including horsepower, torque, and fuel efficiency. It also provides details on the engine's power delivery and responsiveness.

Power Output
  • Horsepower: 262 hp @ 6000 rpm
  • Torque: 253 lb-ft @ 3500 rpm
  • Compression ratio: 10.4:1
  • Fuel delivery: Multi-port fuel injection
  • Redline: 6500 rpm
  • Engine type: Naturally aspirated
Fuel Efficiency
  • City mileage: 16 mpg
  • Highway mileage: 22 mpg
  • Combined mileage: 18 mpg
  • Fuel type: Regular unleaded
  • Fuel tank capacity: 19.8 gallons
  • Emissions: ULEV certified

Engine Design

This section delves into the design and construction of the 3.5L V6 engine, including its block material, cylinder configuration, and valvetrain details. It also highlights the engine's durability and engineering features.

Block and Cylinders
  • Block material: Aluminum
  • Cylinder configuration: V6
  • Displacement: 3.5 liters (3497 cc)
  • Bore x Stroke: 93.0 mm x 85.8 mm
  • Cylinder head material: Aluminum
  • Number of valves: 24
Valvetrain and Timing
  • Valvetrain type: DOHC (Dual Overhead Cam)
  • Timing system: Chain-driven
  • Variable valve timing: Yes
  • Valve configuration: 4 valves per cylinder
  • Camshaft material: Steel
  • Valve lifters: Hydraulic

Maintenance and Durability

This section provides information on the maintenance requirements and durability features of the 3.5L V6 engine. It includes details on oil capacity, service intervals, and common maintenance tasks.

Oil and Fluid Specifications
  • Oil capacity: 5.5 quarts (with filter)
  • Recommended oil type: 5W-20 or 5W-30
  • Oil change interval: 7500 miles or 6 months
  • Coolant capacity: 9.5 quarts
  • Transmission fluid capacity: 7.4 quarts
  • Spark plug type: Platinum-tipped
Service Intervals
  • Timing chain inspection: 100,000 miles
  • Spark plug replacement: 60,000 miles
  • Air filter replacement: 30,000 miles
  • Fuel filter replacement: 60,000 miles
  • Coolant flush: 100,000 miles
  • Belt replacement: 60,000 miles

Engine Specifications

Overview

Type
Gasoline V6
Configuration
60-degree V6
Displacement
3.5 liters (3497 cc)
Valvetrain
DOHC, 24-valve
Fuel System
Multi-port fuel injection
Location
Front, longitudinal

Dimensions

Length
24.8 inches (630 mm)
Width
28.3 inches (720 mm)
Height
27.6 inches (700 mm)
Weight
385 lbs (175 kg)
Bore
3.66 inches (93 mm)
Stroke
3.39 inches (86 mm)
Compression Ratio
10.4:1

Materials

Block
Aluminum alloy
Cylinder Head
Aluminum alloy
Pistons
Forged aluminum
Crankshaft
Forged steel
Valves
Stainless steel

Features

Performance
  • 195-276 horsepower
  • 217-253 lb-ft torque
  • Variable Valve Timing (VVT)
  • High-flow intake manifold
Efficiency
  • Electronic throttle control
  • Optimized combustion chambers
  • Low-friction piston rings
Cooling
  • High-capacity radiator
  • Dual electric fans
  • Coolant temperature sensor
Ignition
  • Distributorless ignition system
  • Iridium-tipped spark plugs
  • Coil-on-plug design
Emissions
  • Catalytic converters
  • EGR (Exhaust Gas Recirculation)
  • OBD-II compliance

Safety Features

Engine Protection
  • Knock sensor
  • Oil pressure sensor
  • Overheat protection
Fuel Safety
  • Fuel cut-off in collisions
  • Leak detection system

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
Vibration Control
  • Balanced crankshaft
  • Dual-mass flywheel

Accessories

Engine Bay
  • Air intake system
  • Alternator
  • Power steering pump
Cooling System
  • Water pump
  • Thermostat
  • Coolant reservoir
Exhaust System
  • Exhaust manifolds
  • Oxygen sensors
  • Muffler

Maintenance

Service interval
Every 7,500 miles or 6 months
Service Items
  • Oil and filter change
  • Spark plug replacement
  • Air filter inspection
  • Coolant flush
  • Timing belt inspection
Maintenance Notes
Use synthetic oil for optimal performance. Timing belt replacement recommended at 60,000 miles.

Warranty

Basic
Miles: 60,000
Years: 5
Coverage: Bumper-to-bumper
Powertrain
Miles: 100,000
Years: 10
Coverage: Engine and transmission
Emissions
Miles: 80,000
Years: 8
Coverage: Catalytic converter, ECU
Corrosion
Miles: Unlimited
Years: 5
Coverage: Perforation only

Production Details

Manufacturer
Kia Motors
Manufacturing Process
  • Casting for engine block
  • CNC machining for cylinder heads
  • Robotic assembly
Quality Control
Testing: Dyno testing, Leak testing, Cold start testing
Standards: ISO 9001 certified
Sustainability Practices
  • Recycled aluminum usage
  • Low-emission manufacturing
  • Waste reduction programs
Production Metrics
Units Per Year: 150,000
Defect Rate: 0.02%
Energy Efficiency: 85%

Service Information for 3.5l v6 engine Service

Maintenance and service requirements specific to this component

7,500
6
  • Oil and filter change
  • Inspect air filter
  • Check coolant level
  • Inspect belts and hoses
  • Test battery condition

Use 5W-30 synthetic oil for best performance.

30,000
24
  • Replace spark plugs
  • Inspect fuel system
  • Check ignition system
  • Inspect exhaust system
  • Test engine performance

Ensure proper torque on spark plugs to avoid damage.

60,000
60
  • Replace timing belt
  • Flush cooling system
  • Inspect water pump
  • Replace engine mounts if needed
  • Perform compression test

Timing belt replacement is critical to prevent engine damage.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.5L V6 engine compatible with other Kia models?

The 3.5L V6 engine used in the 2003-2010 Kia Sorento is specifically designed for this model and may not be directly compatible with other Kia vehicles without significant modifications. Always verify engine codes and mounting points before attempting cross-model compatibility. Consult a certified mechanic or Kia dealership for precise compatibility information.

Q2

What are the maintenance requirements for the 3.5L V6 engine?

The 3.5L V6 engine requires regular maintenance, including oil changes every 5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 30,000 miles. Additionally, inspect the timing belt every 60,000 miles and replace it if necessary. Regular coolant flushes and fuel system cleanings are also recommended to ensure optimal performance.

Q3

How do I replace the 3.5L V6 engine in a Kia Sorento?

Replacing the 3.5L V6 engine involves disconnecting the battery, draining fluids, and removing components like the intake manifold, exhaust system, and wiring harness. Use an engine hoist to lift the old engine out and carefully install the new one. Reconnect all components, refill fluids, and test the engine. Refer to the service manual for detailed instructions.

Q4

What should I do if the 3.5L V6 engine overheats?

If the engine overheats, immediately turn off the vehicle and allow it to cool. Check coolant levels and inspect for leaks. Replace the thermostat if necessary and ensure the radiator fan is functioning. If the issue persists, inspect the water pump and radiator for damage. Seek professional assistance if the problem cannot be resolved.

Q5

How can I optimize the performance of the 3.5L V6 engine?

To optimize performance, use high-quality synthetic oil, upgrade the air intake system, and install a performance exhaust. Regularly clean the throttle body and fuel injectors. Ensure proper tire pressure and alignment to reduce engine strain. Consider using a performance tuner to adjust engine parameters for improved power and efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2003-2010 Kia Sorento Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and troubleshooting for the 3.5L V6 engine and other components.

Technical Service Bulletin for 3.5L V6 Engine

Coming Soon

Details common issues, updates, and fixes for the 3.5L V6 engine in the 2003-2010 Kia Sorento.

Kia Sorento Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts for the 2003-2010 Kia Sorento, including engine components.

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

Automotive Technical Specialist

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