Engine Mechanical:
Engine overhaul, cylinder head, pistons, connecting rods, crankshaft, lubrication system, cooling system, timing belt/chain, internal components.
Engine Performance:
Fuel injection system, ignition system, emission control systems (catalytic converter, EGR), engine diagnostics, performance tuning.
Transmission Manual:
Clutch system, gearbox overhaul, gear shifting mechanisms, maintenance, repair.
Transmission Automatic:
Automatic transmission operation, overhaul, fluid checks and changes, torque converter, electronic controls (if applicable).
Drivetrain:
Front-wheel drive system, CV axles, differential, driveshafts, wheel bearings.
Suspension:
Front and rear suspension components, shock absorbers, struts, coil springs, control arms, bushings, alignment procedures.
Steering:
Power steering system, steering rack, tie rod ends, steering column, alignment.
Brakes:
Front and rear brake systems (disc/drum), hydraulic components, ABS (if equipped), brake fluid specifications, bleeding procedures, component replacement.
Electrical System:
Wiring diagrams, fuses, relays, lighting system, starting system, charging system, battery, power windows, locks, wipers, horn.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, blower motor, climate controls, diagnosis.
Body And Interior:
Body panel removal and installation, interior trim, seats, doors, windows, sunroof, corrosion protection, paint codes.
Chassis And Frame:
Frame construction, unibody structure, rust repair, chassis components.
Diagnostic Troubleshooting:
Systematic diagnostic procedures, symptom-based troubleshooting charts, fault code interpretation (OBD-I).
Scheduled Maintenance:
Oil changes, filter replacements, tune-ups, fluid flushes, belt inspections and replacements, tire rotations.
Component Replacement:
Step-by-step guides for replacing all major and minor components across all vehicle systems.
Engine Rebuild:
Detailed instructions for complete engine disassembly, inspection, measurement, and reassembly.
Transmission Overhaul:
Comprehensive guides for the complete rebuilding of both manual and automatic transmissions.
Brake System Repair:
Pad/shoe replacement, rotor/drum service, caliper/wheel cylinder repair, hydraulic line replacement, brake bleeding.
Suspension And Steering Repair:
Replacement of struts, shocks, control arms, tie rods, ball joints, power steering pump/rack.
Electrical Diagnostics:
Troubleshooting electrical issues using wiring diagrams, component testing, and common fault identification.
Bodywork And Paint:
Minor body repair, panel alignment, rust mitigation, paint code identification.
Troubleshooting Guides:
Specific guides for diagnosing and resolving common and uncommon vehicle problems.
Depth:
In-depth diagnostic procedures, component specifications, tolerances, and torque values. Suitable for professional technicians and advanced DIYers.
Detail Level:
Detailed step-by-step instructions with clear diagrams and illustrations.
Diagnostic Tools:
Information for using basic diagnostic tools and understanding OBD-I codes specific to the 1991 model year.
Oil Change Interval:
Typically every 5,000 - 7,500 miles or 6 months (refer to manual for exact spec)
Engine Oil Type:
10W-30 or 10W-40 API SG or higher (refer to manual)
Oil Filter Part Number Example:
Mazda genuine: B601-14-302; Aftermarket: Fram PH5796, Wix 51515 (verify fitment)
Coolant Type:
Ethylene glycol-based, typically green (Mazda FL22 may be backward compatible, but check manual)
Coolant Capacity Approx:
6.0 - 6.5 Liters
Power Steering Fluid Type:
ATF Dexron-II/III or specific Mazda fluid (refer to manual)
Common Wear Items:
Clutch, CV axles, strut mounts, exhaust system, interior plastics, O2 sensors, fuel injectors.
Rust Prone Areas:
Wheel wells, rocker panels, rear quarter panels, undercarriage.
Engine Specific Concerns:
Timing belt tensioner noise, oil leaks from seals, carbon buildup in advanced models.