Engine Mechanical:
Complete disassembly, inspection, assembly, and overhaul procedures for engine components (pistons, rings, bearings, crankshaft, camshafts, valves, timing belt/chain, etc.)
Engine Management And Emissions:
Fuel injection system, ignition system, sensors, actuators, ECU diagnostics, EVAP system, EGR system, catalytic converter information.
Cooling System:
Radiator, thermostat, water pump, hoses, fan operation, coolant specifications.
Lubrication System:
Oil pump, oil filter, oil passages, oil specifications and capacities.
Fuel System:
Fuel pump, fuel filter, fuel injectors, fuel lines, fuel tank, pressure regulator, fuel pump relay.
Transmission Manual:
Clutch system (operation, adjustment, replacement), manual transmission overhaul, gear shifting mechanisms, transmission fluid specifications.
Transmission Automatic:
Automatic transmission internal components, torque converter, hydraulic control system, valve body, seals, transmission fluid specifications, shift solenoid operation.
Drivetrain:
Front axle, CV joints, drive shafts, differential, rear axle (if applicable).
Suspension System:
Front and rear suspension components (struts, shocks, control arms, ball joints, bushings, sway bars), alignment specifications.
Steering System:
Power steering pump, steering rack/gearbox, tie rod ends, steering column, power steering fluid specifications.
Brake System:
Front and rear disc brakes, brake pads, rotors, calipers, brake lines, master cylinder, brake booster, ABS system diagnostics and components, brake fluid specifications.
Electrical System:
Battery, alternator, starter motor, wiring diagrams for all circuits, fuses, relays, lighting system (headlights, taillights, interior), instrument panel.
Body And Interior:
Door mechanisms, window regulators, seat adjustments, dashboard removal, trim panels, exterior body panel repair, rust prevention.
HVAC System:
Air conditioning compressor, refrigerant, heater core, blower motor, climate control panel, cabin air filter.
Safety Systems:
Airbag system components and diagnostics, seat belt mechanisms.
Routine Maintenance:
Oil and filter changes, air filter replacement, spark plug replacement, fluid checks and top-offs, tire rotation.
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting, code reading and interpretation (OBD-II where applicable).
Component Replacement:
Step-by-step instructions for replacing virtually all major and minor components.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension overhauls, brake system overhauls.
Electrical Diagnostics:
Wiring diagrams for fault finding, testing sensors and actuators, ECU diagnosis.
Body Repair:
Minor dent repair, panel replacement, trim removal and installation.
Adjustments:
Clutch adjustment, parking brake adjustment, headlight aiming.
Depth Of Coverage:
Comprehensive, ranging from basic maintenance to full engine and transmission rebuilds. Includes diagnostic procedures and specifications.
Diagnostic Information:
Detailed explanations of diagnostic trouble codes (DTCs) and procedures for identifying and rectifying faults.
Torque Specifications:
All critical torque specifications for fasteners throughout the vehicle.
Wiring Diagrams:
Full color, system-specific wiring diagrams for electrical troubleshooting.
Illustrations And Diagrams:
Abundant with detailed illustrations, exploded views, and diagrams to aid understanding of procedures.
Oil Change Interval:
Every 5,000 - 7,500 miles or 6-12 months, whichever comes first (refer to manual for exact recommendation based on driving conditions).
Engine Oil Filter Replacement:
At every oil change.
Air Filter Replacement:
Every 15,000 - 30,000 miles or as needed based on inspection.
Spark Plug Replacement:
Typically every 30,000 - 60,000 miles for conventional plugs, or 100,000 miles for platinum/iridium plugs (confirm plug type in manual).
Timing Belt Replacement:
Critical: Consult manual. Typically around 60,000 - 90,000 miles or 5-7 years. Failure can cause severe engine damage.
Engine Oil Specification:
API SJ or higher, SAE 5W-30 is common for most climates. Check manual for specific viscosity recommendations.
Coolant Type:
Mazda Long Life Antifreeze/Coolant (or equivalent ethylene glycol-based coolant with silicate inhibitors, typically green)
Brake Fluid Type:
DOT 3 or DOT 4.
Common Protege Issues Bj:
Timing belt tensioner issues (especially on earlier FS-DE engines), alternator failures, some power steering leaks, potential for rust on older models, catalytic converter issues, automatic transmission solenoid failures.