Repair manual
Wiring diagrams
GMC Envoy I Repair Manual
Step-by-step repair and maintenance instructions for the GMC Envoy I (1997–2000): removal, installation, adjustment, diagnostics and parameter checks with illustrations.
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Parasitic Load Explanation & Test Procedures - General Information
- Waveforms - Injector Pattern Tutorial - General Information
- Electrostatic Discharge Warning - General Information
- State Emission Standards - Diesel
- Model Identification
- Engine Identification
- Valve Clearance Adjustment 4.3L
- Valve Clearance Adjustment 5.0L & 5.7L
- Valve Clearance Adjustment 7.4L
- Trouble Shooting
- Removal & Installation
- Power Steering Bleeding
- Cooling System Bleeding
- Fuel Pressure Release
- Engine (4.3L)
- Removal (Astro & Safari)
- Installation (Astro & Safari)
- Removal (Commercial Van)
- Installation (Commercial Van)
- Removal (Sierra, & "C" & "K" Pickup)
- Installation (Sierra, & "C" & "K" Pickup)
- Removal (Blazer, Bravada, Jimmy, Sonoma & "S" & "T" Series Pickup)
- Installation (Blazer, Bravada, Jimmy, Sonoma & "S" & "T" Series Pickup)
- Removal (Express, Savana & G-Van)
- Installation (Express, Savana & G-Van)
- Engine (5.0L & 5.7L)
- Removal & Installation (Commercial Van)
- Removal (Sierra, Suburban, Tahoe, Yukon & "C" & "K" Series Pickup)
- Installation (Sierra, Suburban, Tahoe, Yukon & "C" & "K" Series Pickup)
- Engine (7.4L)
- Removal & Installation (Commercial Van/motorhome)
- Installation (Commercial Van/motorhome)
- Removal (Express, G-Van & Savana)
- Installation (Express, G-Van & Savana)
- Intake Manifold (Upper) Removal (4.3L)
- Intake Manifold (Upper) Removal (5.0L & 5.7L)
- Intake Manifold (Upper) Installation (4.3L, 5.0L & 5.7L)
- Intake Manifold (Upper) Removal (7.4L)
- Intake Manifold (Upper) Installation (7.4L)
- Intake Manifold (Lower) Removal (4.3L, 5.0L & 5.7L)
- Intake Manifold (Lower) Installation (4.3L, 5.0L & 5.7L)
- Intake Manifold (Lower) Removal (7.4L)
- Intake Manifold (Lower) INSTALLATION(7.4L)
- Cylinder Head
- Installation (4.3L, 5.0L & 5.7L)
- Installation (7.4L - 1998)
- Installation (7.4L - 1999)
- Rocker Arms & Pushrods
- Front Cover
- Rocker Arm Studs
- Removal & Installation (4.3L)
- Removal & Installation (5.0L & 5.7L)
- Valve Lifters
- Water Pump
- Oil Pan
- Removal (4.3L Astro & Safari)
- Removal (4.3L Commercial Van, 2WD Jimmy & Sonoma, 2WD "S" Series Pickup)
- Installation Procedure
- Removal (4.3L 4WD "T" Series Pickup, Jimmy & Sonoma)
- Installation (4.3L)
- Removal Procedure
- Removal (7.4L Commercial Van/motorhome & "C" & "K" Series Pickup)
- Removal (7.4L Express, Savana & G-Van)
- Installation (7.4L)
- Overhaul
- Valve Springs
- Valve Stem Oil Seals
- Valve Guides
- Valves
- Rocker Arm Assembly
- Piston & Rod Assembly
- Fitting Pistons
- Piston Rings
- Rod Bearings
- Crankshaft & Main Bearings
- Thrust Bearing
- Cylinder Block
- Engine Lubrication System
- Oil Pressure
- Oil Pump
- Removal & Disassembly
- Reassembly & Installation
- Torque Specifications (4.3L, 5.0L & 5.7L)
- Torque Specifications (7.4L)
- General Specifications (4.3L)
- General Specifications (5.0L)
- General Specifications (5.7L)
- General Specifications (7.4L)
- Crankshaft, Main & Connecting Rod Bearings (4.3L)
- Crankshaft, Main & Connecting Rod Bearings (5.0L & 5.7L)
- Crankshaft, Main & Connecting Rod Bearings (7.4L)
- Pistons, Pins & Piston Rings (4.3L)
- Pistons, Pins & Piston Rings (5.0L & 5.7L)
- Pistons, Pins & Piston Rings (7.4L)
- Cylinder Block (4.3L)
- Cylinder Block (5.0L)
- Cylinder Block (5.7L)
- Cylinder Block (7.4L)
- Engine Valves & Valve Springs (4.3L)
- Engine Valves & Valve Springs (5.0L & 5.7L)
- Engine Valves & Valve Springs (7.4L)
- Cylinder Head (4.3L)
- Cylinder Head (5.0L)
- Cylinder Head (5.7L)
- Cylinder Head (7.4L)
- Camshaft (4.3L)
- Camshaft (5.0L & 5.7L)
- Camshaft (7.4L)
- Balance Shaft (4.3L)
- Model Identification
- Introduction
- Powertrain Control Module (PCM)
- Electrically Erasable Programmable Read-Only Memory (Eeprom)
- Knock Sensor (Ks) Module
- Removal & Installation
- Removal & Installation (24X Sensor)
- Distributor
- Disassembly & Reassembly
- Installation (Procedure A)
- Installation (Procedure B)
- Knock Sensor (Ks)
- Fuel System Pressure Relief
- Removal Procedure (Blazer, Bravada, Jimmy, S10 Pickup, Sonoma)
- Installation Procedure
- Fuel Pump
- Oxygen Sensor
- Torque Specifications
- Rpo Code Definitions (Rpo 001-19F)
- Rpo Code Definitions (Rpo 19H-2EL).
- Rpo Code Definitions (Rpo 2F1-44I).
- Rpo Code Definitions (Rpo 44L-5J9).
- Rpo Code Definitions (Rpo 5K0-6FF).
- Rpo Code Definitions (Rpo 6FG-76A).
- Rpo Code Definitions (Rpo 76D-7XD).
- Rpo Code Definitions (Rpo 7XF-8M0).
- Rpo Code Definitions (Rpo 8M1-9C0).
- Rpo Code Definitions (Rpo 9C1-A0F).
- Rpo Code Definitions (Rpo A0G-AR4).
- Rpo Code Definitions (Rpo AR5-BCP).
- Rpo Code Definitions (Rpo BCQ-C12).
- Rpo Code Definitions (Rpo C13-CUR).
- Rpo Code Definitions (Rpo Cut-Dir).
- Rpo Code Definitions (Rpo DR7-EHE).
- Rpo Code Definitions (Rpo EHF-F5P).
- Rpo Code Definitions (Rpo F5Q-G1V).
- Rpo Code Definitions (Rpo G1W-HFN).
- Rpo Code Definitions (Rpo Hfo-Jrg).
- Rpo Code Definitions (Rpo Jrh-Kly).
- Rpo Code Definitions (Rpo Klz-Lqx).
- Rpo Code Definitions (Rpo LQY-MW9).
- Rpo Code Definitions (Rpo Mwe-Odk).
- Rpo Code Definitions (Rpo Odl-Ora).
- Rpo Code Definitions (Rpo Orb-Pde).
- Rpo Code Definitions (Rpo PDF-QH6).
- Rpo Code Definitions (Rpo QH7-R8D).
- Rpo Code Definitions (Rpo R8E-T07).
- Rpo Code Definitions (Rpo T08-TJ0).
- Rpo Code Definitions (Rpo TJ1-U10).
- Rpo Code Definitions (Rpo U11-US9).
- Rpo Code Definitions (Rpo USB-VG9).
- Rpo Code Definitions (Rpo VGA-W5Y).
- Rpo Code Definitions (Rpo W5Z-XE3).
- Rpo Code Definitions (Rpo XE4-Y9Z).
- Rpo Code Definitions (Rpo YA2-ZD9).
- Rpo Code Definitions (Rpo Zde-Zzz).
- SENSING & DIAGNOSTIC MODULE (SDM)
- POST-COLLISION INSPECTION
- DIAGNOSIS & TESTING
- DIAGNOSTIC TROUBLE CODES (DTCS)
- SCAN TOOL DIAGNOSTICS
- DIAGNOSTIC PROCEDURES
- Perform SIR System Diagnostic Check
- Refer to Proper Diagnostic Chart
- Repeat SIR Diagnostic System Check
- TESTING - DIAGNOSTIC
- SIR DIAGNOSTIC SYSTEM CHECK
- Circuit Description
- Conditions For Setting DTC
- Conditions For Clearing DTC
- Diagnostic Aids
- Introduction
- Speed Density
- Computerized Engine Controls
- Powertrain Control Module (PCM) & Vehicle Control Module Vcm)
- Arithmetic Logic Unit (Alu)
- Central Processing Unit (Cpu)
- Power Supply
- Memories
- Input Devices
- A/c on (A/c Request) Signal
- Battery Voltage
- Brake Switch Feedback
- Camshaft Position (Cmp) Sensor
- Cranking Signal
- Crankshaft Position (Ckp) Sensor
- Digital Ratio Adapter Controller (Drac)
- Engine Coolant Temperature (ECT) Sensor
- Exhaust Gas Recirculation (EGR) Pintle Position
- Fuel Pump Feedback
- Gear Switches
- Intake Air Temperature (IAT) Sensor
- Knock Sensor (Ks)
- Manifold Absolute Pressure (MAP) Sensor
- Oxygen Sensor (O2S)
- Park/neutral Position (Pnp) Switch
- Transmission Fluid Pressure (Tfp) Switch (4L60-E & 4L80-E Transmission)
- Throttle Position (Tp) Sensor
- Transmission Fluid Temperature (Tft) Sensor (4L60-E, 4L80-E & 4T60-E Transmission)
- Vehicle Speed Sensor (Vss)
- Output Signals
- A/c Clutch Relay
- Cruise Control Stepper Motor
- Malfunction Indicator Light (MIL)
- EGR System
- Electronic Ignition (Ei)
- Fuel Injectors
- Fuel Pump & Fuel Pump Relay
- Idle Air Control (Iac) Valve
- Self-Diagnostics
- Serial Data
- Shift Solenoids (4L60-E, 4L80-E & 4T60-E Transmission)
- Torque Converter Clutch (Tcc)
- Transmission Shift Light (Manual Transmission)
- Fuel Pump
- Fuel Pressure Regulator (Csi)
- Fuel Pressure Regulator (Sfi)
- Fuel Pump Relay
- Fuel Control
- Open Loop
- Closed Loop
- Central Sequential Port Injection (Csi)
- Sequential Fuel Injection (Sfi)
- Fuel System Operating Modes
- Idle Speed
- Enhanced Ignition System
- Ignition Timing Control
- Catalytic Converter
- Exhaust Gas Recirculation (EGR)
- Evaporative Emission System
- Carbon Canister
- Canister Purge Control Solenoid (Cpcs)
- Positive Crankcase Ventilation (PCV)
- Self-Diagnostic System
- Miscellaneous Pcm/vcm Controls
- A/c Clutch
- A/c Pressure Switches
- Cruise Control
- Electronic Transmission (4L60-E, 4L80-E & 4T60-E)
- Shift Light