Pontiac Pontiac Grand Prix 2004-2008 5.3L V8 Engine Engine Specifications
Pontiac Pontiac Grand Prix 2004-2008

Pontiac Pontiac Grand Prix 2004-2008 5.3L V8 Engine Specifications

Explore the detailed 5.3L V8 engine specifications for the 2004-2008 Pontiac Grand Prix. This guide covers horsepower, torque, fuel system, and emissions data, providing essential insights for maintenance, repairs, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 5.3L V8 engine used in the 2004-2008 Pontiac Grand Prix. It is designed to assist enthusiasts, mechanics, and owners in understanding the engine's performance, design, and maintenance requirements. Use the search and navigation tips to quickly find specific details or explore sections for comprehensive insights.

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Navigate through the document using the section titles and subsections. Click on a section to expand it and view detailed descriptions and technical points. Use the quick reference table for a summary of key specifications.

Key Specifications

Horsepower

300 HP

Torque

330 lb-ft

Displacement

5.3L

Fuel Economy (City)

15 MPG

Fuel Economy (Highway)

22 MPG

Available Specifications

Engine Performance

This section covers the performance metrics of the 5.3L V8 engine, including horsepower, torque, and acceleration capabilities. It also explores the engine's efficiency and fuel economy, providing insights into its real-world driving experience.

Horsepower and Torque
  • 300 horsepower at 5200 RPM
  • 330 lb-ft of torque at 4000 RPM
  • Optimized for mid-range performance
  • Responsive throttle for sporty driving
Fuel Efficiency
  • EPA-estimated 15 MPG city
  • EPA-estimated 22 MPG highway
  • Designed for balance between power and economy
  • Variable valve timing for improved efficiency

Engine Design

Explore the engineering and design features of the 5.3L V8 engine, including its block construction, cylinder configuration, and advanced technologies that enhance durability and performance.

Block and Cylinders
  • Cast iron engine block
  • Aluminum cylinder heads
  • 8-cylinder configuration
  • Displacement of 5.3 liters (325 cubic inches)
Advanced Technologies
  • Active Fuel Management system
  • Electronic throttle control
  • Sequential fuel injection
  • Overhead valve (OHV) design

Maintenance and Durability

This section provides guidance on maintaining the 5.3L V8 engine, including recommended service intervals, common issues, and tips for ensuring long-term reliability.

Service Intervals
  • Oil change every 5,000 miles
  • Spark plug replacement every 100,000 miles
  • Regular coolant system checks
  • Air filter inspection every 15,000 miles
Common Issues
  • Potential for oil consumption
  • Active Fuel Management system concerns
  • Timing chain wear over time
  • Exhaust manifold leaks

Engine Specifications

Overview

Type
V8
Configuration
Naturally Aspirated
Platform
GM LS4
Material
Aluminum Block
Location
Front Engine, Transverse

Dimensions

Length
26.7 in (678 mm)
Width
28.3 in (719 mm)
Height
25.6 in (650 mm)
Weight
403 lbs (183 kg)
Bore
3.78 in (96 mm)
Stroke
3.62 in (92 mm)
Displacement
325 cu in (5.3 L)

Materials

Block
Cast Aluminum
Cylinder Heads
Cast Aluminum
Pistons
Forged Aluminum
Connecting Rods
Forged Steel
Crankshaft
Forged Steel

Features

Performance
  • 303 hp at 5600 rpm
  • 323 lb-ft torque at 4400 rpm
  • High-flow cylinder heads
  • Dual overhead camshafts
Fuel System
  • Sequential Fuel Injection
  • Electronic Throttle Control
  • Variable Fuel Pressure
Cooling System
  • High-capacity radiator
  • Electric cooling fan
  • Coolant recovery system
Ignition System
  • Coil-on-plug ignition
  • Digital ignition control
  • Knock sensor system
Exhaust System
  • Dual exhaust
  • Stainless steel headers
  • Catalytic converters

Safety Features

Engine Protection
  • Oil pressure sensor
  • Coolant temperature sensor
Emission Control
  • OBD-II diagnostics
  • Catalytic converters
  • EGR system
Reliability
  • Forged internal components
  • High-capacity lubrication system

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
Vibration Control
  • Balanced crankshaft
  • Dual-mass flywheel
Ease Of Maintenance
  • Top-mounted oil filter
  • Accessible spark plugs

Accessories

Engine Bay
  • Decorative engine cover
  • Battery tray
  • Power steering pump
Cooling System
  • Radiator fan shroud
  • Coolant reservoir
  • Thermostat housing
Exhaust System
  • Exhaust manifold gaskets
  • Heat shields
  • Oxygen sensors

Maintenance

Service interval
5000 miles or 6 months
Service Items
  • Oil and filter change
  • Spark plug inspection
  • Air filter replacement
  • Coolant level check
  • Belt and hose inspection
Maintenance Notes
Use 5W-30 synthetic oil for optimal performance

Warranty

Basic
Miles: 36000
Years: 3
Coverage: Bumper-to-bumper
Powertrain
Miles: 60000
Years: 5
Coverage: Engine and transmission
Corrosion
Miles: 100000
Years: 6
Coverage: Perforation only
Emissions
Miles: 80000
Years: 8
Coverage: Federal emissions components

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Casting
  • Machining
  • Assembly
  • Testing
Quality Control
Dimensional inspection: Laser scanning
Performance Testing: Dynamometer
Leak Testing: Air and fluid pressure
Sustainability Practices
  • Recycled aluminum
  • Waste reduction
  • Energy-efficient manufacturing
Production Metrics
Units Per Day: 150
Defect Rate: 0.1%

Service Information for 5.3l v8 engine Service

Maintenance and service requirements specific to this component

5000
6
  • Oil and filter change
  • Inspect spark plugs
  • Check coolant level
  • Inspect belts and hoses
  • Check battery terminals

Use recommended 5W-30 synthetic oil

30000
36
  • Replace air filter
  • Inspect fuel system
  • Check ignition system
  • Inspect exhaust system
  • Test engine performance

Perform comprehensive engine diagnostics

60000
72
  • Replace spark plugs
  • Flush cooling system
  • Inspect engine mounts
  • Check timing components
  • Perform compression test

Major service interval requires specialized tools

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 5.3L V8 engine compatible with other Pontiac models from 2004-2008?

The 5.3L V8 engine is specifically designed for the 2004-2008 Pontiac Grand Prix. While it may share some components with other GM models, direct compatibility is not guaranteed. Always verify with the vehicle's service manual or a certified technician before attempting any cross-model installations.

Q2

What are the maintenance requirements for the 5.3L V8 engine?

Regular maintenance for the 5.3L V8 engine includes 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 and coolant system annually. Adhering to these guidelines ensures optimal engine performance and longevity.

Q3

How do I replace the 5.3L V8 engine in my Pontiac Grand Prix?

To replace the 5.3L V8 engine, first disconnect the battery and drain fluids. Remove the engine mounts, transmission, and exhaust system. Carefully lift the engine out using a hoist. Install the new engine by reversing the removal steps, ensuring all connections are secure. Consult the service manual for detailed torque specifications.

Q4

What should I do if my 5.3L V8 engine is misfiring?

If your 5.3L V8 engine is misfiring, start by checking the spark plugs, ignition coils, and fuel injectors. Inspect the air intake system for leaks and ensure the fuel filter is clean. Use an OBD-II scanner to identify specific error codes. Replace faulty components as needed and clear the codes to resolve the issue.

Q5

How can I optimize the performance of my 5.3L V8 engine?

To optimize performance, consider upgrading the air intake and exhaust systems for better airflow. Use high-performance spark plugs and synthetic oil. Regularly tune the engine and ensure the ECU is updated. Additionally, maintain proper tire pressure and alignment to reduce drag and improve overall 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.

2004-2008 Pontiac Grand Prix Service Manual

Coming Soon

Comprehensive guide covering all aspects of maintenance, repair, and troubleshooting for the 5.3L V8 engine.

Technical Service Bulletin for 5.3L V8 Engine

Coming Soon

Latest updates and fixes for common issues related to the 5.3L V8 engine in the Pontiac Grand Prix.

Pontiac Grand Prix Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket parts for the 2004-2008 Pontiac Grand Prix, 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

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