Buick Rainier 2004-2007 Emissions & Sensors Specifications
Explore detailed technical specifications for the emissions sensors in the 2004-2007 Buick Rainier. Learn about sensor types, locations, functions, and compatibility for accurate diagnostics and repairs.
Overview Specifications
This document provides detailed specifications and technical information about the emissions sensors used in the 2004-2007 Buick Rainier. It is designed to assist technicians, engineers, and enthusiasts in understanding the functionality, maintenance, and troubleshooting of these sensors. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications.
How to Use
Use the search functionality to quickly locate specific terms or sensor names. Enter keywords like 'O2 sensor' or 'catalytic converter' to find relevant sections.
Navigate through the document using the table of contents. Each section is labeled clearly, and subsections provide detailed information about specific components or systems.
Key Specifications
O2 Sensor Voltage Range
0.1-0.9 V
Catalytic Converter Operating Temp
400-600°C
Fuel Tank Pressure Range
-8 to +8 inH2O
Purge Valve Flow Rate
1.5 L/min
Sensor Replacement Interval
100,000 miles
Available Specifications
Oxygen Sensors
This section covers the oxygen (O2) sensors used in the Buick Rainier, including their location, function, and maintenance. Oxygen sensors are critical for monitoring exhaust gases and ensuring optimal fuel efficiency and emissions control.
Oxygen Sensors
This section covers the oxygen (O2) sensors used in the Buick Rainier, including their location, function, and maintenance. Oxygen sensors are critical for monitoring exhaust gases and ensuring optimal fuel efficiency and emissions control.
Front Oxygen Sensor
- Located before the catalytic converter
- Monitors oxygen levels in exhaust gases
- Provides feedback to the engine control module (ECM)
- Helps adjust air-fuel mixture for optimal combustion
- Replacement interval: 100,000 miles
- Part number: 25324591
Rear Oxygen Sensor
- Located after the catalytic converter
- Monitors catalytic converter efficiency
- Sends data to the ECM for emissions compliance
- Diagnoses catalytic converter performance
- Replacement interval: 100,000 miles
- Part number: 25324592
Catalytic Converter Sensors
This section explains the role of sensors associated with the catalytic converter, including temperature and pressure sensors. These sensors ensure the catalytic converter operates efficiently and complies with emissions standards.
Catalytic Converter Sensors
This section explains the role of sensors associated with the catalytic converter, including temperature and pressure sensors. These sensors ensure the catalytic converter operates efficiently and complies with emissions standards.
Catalytic Converter Temperature Sensor
- Monitors exhaust gas temperature
- Prevents overheating of the catalytic converter
- Sends data to the ECM for temperature regulation
- Located near the catalytic converter inlet
- Replacement interval: 150,000 miles
- Part number: 25324593
Catalytic Converter Pressure Sensor
- Measures backpressure in the exhaust system
- Detects blockages or damage in the catalytic converter
- Sends alerts to the ECM for diagnostics
- Located near the catalytic converter outlet
- Replacement interval: 150,000 miles
- Part number: 25324594
Evaporative Emissions System Sensors
This section details the sensors used in the evaporative emissions system, which prevents fuel vapors from escaping into the atmosphere. These sensors monitor pressure and leaks in the fuel system.
Evaporative Emissions System Sensors
This section details the sensors used in the evaporative emissions system, which prevents fuel vapors from escaping into the atmosphere. These sensors monitor pressure and leaks in the fuel system.
Fuel Tank Pressure Sensor
- Monitors pressure in the fuel tank
- Detects leaks in the evaporative emissions system
- Sends data to the ECM for diagnostics
- Located on the fuel tank
- Replacement interval: 100,000 miles
- Part number: 25324595
Purge Valve Sensor
- Controls the flow of fuel vapors to the engine
- Monitors the purge valve operation
- Ensures proper vapor recirculation
- Located near the intake manifold
- Replacement interval: 100,000 miles
- Part number: 25324596
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Component Specifications
Overview
- Type
- Oxygen Sensor (O2 Sensor)
- Configuration
- Upstream and Downstream
- Platform
- Integrated with Engine Control Unit (ECU)
- Material
- Zirconia Ceramic
- Location
- Exhaust Manifold and Catalytic Converter
Dimensions
- Length
- 2.5 inches (63.5 mm)
- Diameter
- 0.75 inches (19.05 mm)
- Thread Size
- M18 x 1.5
- Wire Length
- 12 inches (304.8 mm)
- Operating Temperature
- -40°F to 1500°F (-40°C to 815°C)
- Voltage Range
- 0.1V to 0.9V
- Response Time
- 100 milliseconds
Materials
- Sensor Element
- Zirconia Ceramic
- Housing
- Stainless Steel
- Wiring
- High-Temperature Silicone Insulation
- Connector
- Thermoplastic
Features
- Performance
-
- Wide Operating Temperature Range
- Fast Response Time
- High Accuracy
- Durability
-
- Corrosion-Resistant Housing
- Thermal Shock Resistance
- Vibration Resistance
- Compatibility
-
- Direct Fit for 2004-2007 Buick Rainier
- OEM Equivalent
- Universal Connector
- Diagnostics
-
- Real-Time Data Transmission
- Fault Detection
- Self-Diagnostics
- installation
-
- Threaded Design
- Pre-Installed Gasket
- Tool-Free Connector
Safety Features
- Thermal Protection
-
- High-Temperature Insulation
- Overheat Shutdown
- Electrical Safety
-
- Short-Circuit Protection
- Reverse Polarity Protection
- Environmental
-
- Lead-Free Construction
- RoHS Compliant
Comfort Features
- installation
-
- Easy Access Design
- Clear Connector Labeling
- Maintenance
-
- Self-Cleaning Function
- Long Service Life
- Performance
-
- Smooth Data Transmission
- Low Noise Interference
Accessories
- installation Tools
-
- O2 Sensor Socket
- Thread Sealant
- Wire Connector Kit
- Replacement Parts
-
- Gasket
- Heat Shield
- Wiring Harness
- Diagnostic Tools
-
- OBD-II Scanner
- Multimeter
- Test Light
Maintenance
- Service interval
- Every 60,000 miles or 5 years
- Service Items
-
- Inspect Sensor Wiring
- Check Connector Integrity
- Clean Sensor Surface
- Test Sensor Voltage
- Replace if Faulty
- Maintenance Notes
- Avoid using silicone-based sealants near the sensor.
Warranty
- Standard Warranty
- Miles: 12,000 milesYears: 1 yearCoverage: Defects in Materials and Workmanship
- Extended Warranty
- Miles: 60,000 milesYears: 5 yearsCoverage: Sensor Failure
- Emissions Warranty
- Miles: 80,000 milesYears: 8 yearsCoverage: Federal Emissions Compliance
- Warranty Terms
- Proof of purchase and proper installation required.
Production Details
- Manufacturer
- Delphi Technologies
- Manufacturing Process
-
- Precision Ceramic Molding
- Automated Assembly
- Laser Welding
- Quality Control
- Testing: Thermal Cycling, Vibration Testing, Electrical PerformanceCertifications: ISO 9001, ISO 14001
- Sustainability Practices
-
- Recyclable Materials
- Energy-Efficient Production
- Waste Reduction Programs
- Production Metrics
- Annual Output: 2 million unitsDefect Rate: 0.01%
Service Information for emissions_sensors Service
Maintenance and service requirements specific to this component
- Inspect sensor wiring for damage
- Check connector for corrosion
- Test sensor voltage output
- Clean sensor surface with appropriate cleaner
Ensure the engine is cool before inspection.
- Replace sensor if voltage readings are inconsistent
- Inspect exhaust system for leaks
- Verify ECU communication with sensor
- Perform full diagnostic scan
Use OEM or equivalent replacement parts.
- Replace upstream and downstream sensors
- Inspect catalytic converter efficiency
- Check for exhaust system wear
- Perform emissions system test
Critical to maintain emissions compliance.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the emissions sensors for the 2004-2007 Buick Rainier?
What are the technical specifications of the emissions sensors for the 2004-2007 Buick Rainier?
The emissions sensors for the 2004-2007 Buick Rainier include oxygen sensors, coolant temperature sensors, and air/fuel ratio sensors. These sensors are designed to work with the 4.2L inline-6 or 5.3L V8 engines. The oxygen sensors are heated, three-wire units, compatible with GM vehicles from 2004-2007. Ensure compatibility with your specific engine type and model year when replacing sensors.
Q2 What maintenance is required for the emissions sensors on the Buick Rainier?
What maintenance is required for the emissions sensors on the Buick Rainier?
Regular inspection of emissions sensors is recommended every 30,000 miles. Cleaning should be done with approved sensor cleaners. Avoid using harsh chemicals or abrasive materials. Replace sensors showing signs of failure, such as poor engine performance or illuminated check engine lights. Follow GM-recommended maintenance schedules for optimal performance.
Q3 How do I install or replace emissions sensors on my Buick Rainier?
How do I install or replace emissions sensors on my Buick Rainier?
To replace emissions sensors, start by disconnecting the battery. Locate the sensor, typically near the exhaust manifold or cylinder head. Use a wrench to remove the sensor, then disconnect the electrical connector. Install the new sensor, ensuring proper seating and torque specifications (usually 30-40 ft-lbs). Reconnect the electrical connector and test the system.
Q4 How do I troubleshoot common issues with emissions sensors?
How do I troubleshoot common issues with emissions sensors?
Common issues include faulty sensor readings or contamination. Use an OBD-II scanner to identify trouble codes. Clean sensors if contaminated, but replace them if damaged. Check wiring and connections for damage or corrosion. Consult a repair manual or professional if issues persist after basic troubleshooting.
Q5 How can I optimize the performance of my emissions sensors?
How can I optimize the performance of my emissions sensors?
Ensure proper engine tune-up, including clean air filters and correct fuel injection. Avoid contaminants like silicone-based sealers. Regularly inspect exhaust systems for leaks. Maintain proper engine temperature with a functioning cooling system. Replace sensors at recommended intervals to maintain accuracy and performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2004-2007 Buick Rainier Service Manual
Coming SoonComprehensive guide covering technical specifications, maintenance, and repair procedures for emissions sensors.
Technical Service Bulletin: Emissions Sensor Updates
Coming SoonDetails updates and common issues related to emissions sensors for 2004-2007 models.
Genuine GM Parts Catalog: Emissions Sensors
Coming SoonCatalog of OEM emissions sensors and accessories for 2004-2007 Buick Rainier.
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