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Repair manual

Mechanical GMC Envoy I

Step-by-step instructions on "Mechanical" for GMC Envoy I (1997–2000). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

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)