Complete digital official shop manual contains service, maintenance, and troubleshooting information for the GMC Envoy 1998-2009. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your vehicle like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for GMC Envoy 1998-2009 is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
2009 ENGINE Engine Mechanical - 5.3L & 6.0L - Envoy & TrailBlazer
VALVE ROCKER ARM COVER REMOVAL - LEFT SIDE
Fig. 9: Identifying Ignition Coils & Bracket
1. Remove the spark plug wires (724).
2. Remove the ignition coil bracket studs (720).
3. Remove the ignition coil and bracket assembly (719).
Fig. 10: View Of Bracket, Bolts, Coils & Wire Harness
4. Disconnect the ignition coil electrical connectors.
5. Remove the bolts (723), coils (722), and wire harness (721) from the bracket (719), as required.
Fig. 11: View Of Valve Rocker Arm Cover
6. Remove the valve rocker arm cover bolts and cover.
Fig. 12: View Of Valve Rocker Arm Cover Gasket
7. Remove the gasket (504) from the cover.
VALVE ROCKER ARM COVER REMOVAL - RIGHT SIDE
Fig. 13: View Of Ignition Coils & Bracket
IMPORTANT: Do not remove the oil fill tube from the cover, unless service is required. If the oil fill tube has been removed from the cover, install a NEW tube during assembly.
1. Remove the spark plug wires (724).
2. Remove the ignition coil bracket studs (720).
3. Remove the ignition coil and bracket assembly (719).
Fig. 14: View Of Bracket, Bolts, Coils & Wire Harness
4. Disconnect the ignition coil electrical connectors.
5. Remove the bolts (723), coils (722), and wire harness (721) from the bracket (719), as required.
Fig. 15: View Of Valve Rocker Arm Cover & Bolts (Right)
6. Remove the valve rocker arm cover bolts and cover.
Fig. 16: View Of Valve Rocker Arm Cover Gasket
7. Remove the gasket (504) from the cover.
Fig. 17: Identifying Oil Fill Cap & Oil Fill Tube
8. Remove the oil fill cap (424) from the oil fill tube (423).
9. Remove the oil fill tube, as required.
10. Discard the oil fill tube.
VALVE ROCKER ARM AND PUSH ROD REMOVAL
Fig. 18: View Of Rocker Arms & Bolts
IMPORTANT: Place the valve rocker arms, valve pushrods, and pivot support, in a rack so they can be installed in the same location from which they were removed.
1. Remove the valve rocker arm bolts.
2. Remove the valve rocker arms.
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