Great Wall GW491QE Engine Service Repair Manual – PDF
Original price was: $95.00.$18.95Current price is: $18.95.
Official Great Wall GW491QE Petrol Engine Service Manual PDF covering complete engine repair, overhaul, diagnostics, EFI systems (Bosch Motronic), torque specs, troubleshooting charts, wiring diagrams, and adjustment data. Essential technical reference for mechanics, workshops, and service professionals. Instant downloadable PDF.
Description
Great Wall GW491QE Engine Service Repair Manual – PDF DOWNLOAD
DESCRIPTION
🔧 Manual Overview
This is the official factory service manual for the Great Wall GW491QE gasoline engine, developed for professional mechanics, engine rebuilders, and technical personnel. The manual provides step-by-step repair procedures, detailed specifications, EFI diagnostics, and troubleshooting logic required for accurate servicing and overhaul.
The GW491QE engine is a 2.2L inline-4 petrol engine with multi-point electronic fuel injection, compliant with Euro II / Euro III emission standards.
📘 DETAILED CONTENTS & BOOKMARKS
1️⃣ Engine Service & Maintenance Data
Key technical parameters (bore, stroke, displacement, compression ratio)
Power & torque specifications
Lubrication & cooling specifications
Oil capacity, pressures & temperatures
Fuel requirements & emission standards
Engine tightening torque tables (standard & special bolts)
2️⃣ Engine Mechanical Systems
Engine body & cylinder block
Cylinder head inspection & service limits
Valve mechanism (hydraulic tappets)
Timing chain, camshaft & crankshaft data
Pistons, rings, pins & connecting rods
Bearing clearances & wear limits
3️⃣ Cooling System
Water pump, thermostat & radiator specs
Cooling fluid capacity & temperature limits
Belt tension specifications
Overheating troubleshooting
4️⃣ Lubrication System
Oil pump specifications
Oil pressure diagnosis
Oil filter & sealing data
Oil consumption troubleshooting
5️⃣ Ignition, Starting & Charging Systems
Spark plug specifications
Ignition coil & wiring resistance
Starter motor specifications
Alternator & regulator testing
Battery & charging diagnostics
6️⃣ Fuel Injection & Engine Management
Covers Bosch Motronic M1.5.4 & M7.9.7 EFI systems:
ECU system architecture
Sensors & actuators overview
Injector control logic
Throttle position, MAP, knock & oxygen sensors
Idle speed control & closed-loop fuel control
OBD diagnosis & fault code logic
7️⃣ Wiring Diagrams & ECU Pinouts
ECU pin definitions (M1.5.4 & M7.9.7)
Complete wiring diagrams
Sensor signal interpretation
Relay & power supply circuits
8️⃣ Troubleshooting Section
Engine won’t start / hard starting
Poor acceleration & power loss
Rough idle & abnormal noise
Overheating & oil pressure faults
Excessive fuel or oil consumption
Step-by-step fault elimination tables
9️⃣ Special Tools & Repair Materials
SST special service tools list
Sealants & repair compounds
Recommended workshop equipment
📄 FILE DETAILS
| Item | Description |
|---|---|
| Manual Name | Great Wall GW491QE Engine Service Manual |
| Engine Model | GW491QE Petrol Engine |
| Displacement | 2.2L Inline-4 |
| Year | Early 2000s (Euro II / Euro III era) |
| Manual Type | Service, Repair & Overhaul |
| Pages | 222 pages |
| PDF Quality | Clear text, tables, wiring diagrams & illustrations |
🎯 WHO THIS MANUAL IS FOR
Professional auto mechanics
Engine rebuilders & workshops
Technical training institutes
Great Wall vehicle service centers
🛒 WHY BUY THIS MANUAL?
This factory service manual gives you precise engine data, real diagnostic logic, and manufacturer-approved repair procedures—eliminating guesswork and saving hours of troubleshooting time.
⚡ INSTANT DOWNLOAD – READY TO USE
Purchase now to download the PDF instantly and start repairing or rebuilding the GW491QE engine with confidence today.
