Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Buick Rainier 2003-2007. 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 Buick Rainier 2003-2007 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:
2007 ENGINE Engine Mechanical - 5.3L - Envoy, Rainier & TrailBlazer
Intake Manifold Cleaning and Inspection
Cleaning Procedure
Fig. 499: View Of Intake Manifold-To-Cylinder Head Gasket
1. Remove and discard the intake manifold-to-cylinder head gaskets (514).
Fig. 500: View Of Intake Manifold
of GENERAL MOTORS CORP.
2. Remove the manifold absolute pressure (MAP) sensor. Refer to Intake Manifold Removal.
3. Remove the evaporative emission (EVAP) canister purge solenoid valve, EVAP tubes and fuel rail with injectors. Refer to Fuel Rail and Injectors Removal.
4. Remove the throttle body and gasket. Refer to Throttle Body Removal.
5. Clean the intake manifold (500) in solvent.
6. Dry the intake manifold with compressed air.
Inspection Procedure
1. Inspect the manifold for the following conditions:
Damaged gasket or sealing surfaces
Loose threaded inserts or studs
Debris or restrictions within the passages of the manifold
Damaged or broken vacuum fittings
Inspect the composite intake manifold assembly for cracks or other damage.
Fig. 501: View of Intake Manifold Cylinder Head Deck
2. Inspect the intake manifold cylinder head deck for warpage.
1. Locate a straight edge across the intake manifold cylinder head deck surface.
Position the straight edge across a minimum of two runner port openings.
2. Insert a feeler gage between the intake manifold and the straight edge.
An intake manifold with warpage in excess of 3 mm (0.118 in) over a 200 mm (7.87 in) area is warped and should be replaced.
Exhaust Manifold Cleaning and Inspection
Fig. 502: View Of Left Exhaust Manifold & Heat Shield
IMPORTANT: Do not use the exhaust manifold-to-cylinder head gaskets again. Upon installation of the exhaust manifold, install a NEW gasket. An improperly installed gasket or leaking exhaust system may effect on-board diagnostics (OBD) II system performance.
1. Clean the exhaust manifold (600) and heat shield (603) in solvent.
CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
2. Dry the exhaust manifold with compressed air.
3. Inspect the exhaust manifold-to-cylinder head gasket surface for excessive scratches or gouging.
4. Inspect for a loose, damaged or cracked heat shield (603).
5. Inspect the studs (605) for damaged threads.
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