Engine Mechanical:
Engine assembly, cylinder head, pistons, crankshaft, camshaft, timing, lubrication, cooling
Engine Performance:
Fuel injection (EFI), ignition system, emissions control (ECM, sensors)
Transmission:
4T60-E automatic transmission overhaul, diagnostics, valve body, torque converter
Drivetrain:
Axles, CV joints, transaxle
Suspension:
Front suspension (struts, control arms, ball joints), rear suspension (trailing arms, springs), steering linkage
Brakes:
Front disc brakes, rear drum brakes, hydraulic system, parking brake, ABS (if equipped)
Steering:
Power steering system, steering column, steering gear
Electrical System:
Battery, charging system (alternator), starting system (starter), lighting, accessories
Body And Interior:
Body panels, doors, glass, seats, trim, interior components
HVAC:
Heating, ventilation, and air conditioning (HVAC) system diagnosis and repair
Restraints:
Seat belts, airbags (if equipped - for basic information, not deep diagnostics)
Diagnostic Trouble Codes:
OBD-I DTC retrieval and interpretation
Fuel System Components:
Fuel tank, fuel pump, fuel filter, fuel lines, injectors
Emission Controls:
Catalytic converter, oxygen sensors, EGR valve, EVAP system components and operation
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections
Repair:
Component removal, installation, and adjustment for all major systems
Diagnostics:
Step-by-step troubleshooting procedures for common and complex issues
Wiring Diagrams:
Comprehensive electrical schematic diagrams for all circuits
Specifications:
Torque specifications, clearances, fluid capacities, electrical tolerances
Body And Paint:
Body panel alignment, door mechanisms, trim installation, rust repair guidance (general)
Interior Trim:
Removal and installation of interior panels, headliner, dashboard components, seat upholstery
Depth:
Factory-level repair and diagnostic information
Detail Level:
Detailed component removal/installation, system diagnosis, and component-level repair
NHTSA Frontal Impact Driver:
Not rated (vehicle design predates standardized NHTSA testing of this nature)
NHTSA Frontal Impact Passenger:
Not rated (vehicle design predates standardized NHTSA testing of this nature)
ABS:
Anti-lock Braking System (ABS) optional on some trims, standard on others
Airbags:
Driver-side airbag standard; passenger airbag optional on some models
Seat Belts:
All seating positions equipped with three-point seat belts
Audio System:
Optional premium Delco Bose audio systems, cassette player, AM/FM stereo with seek/scan
Climate Control:
Dual-zone automatic climate control (optional on some models, standard on Fleetwood models)
Cruise Control:
Standard electronic cruise control
Dashboard Features:
Digital dashboard displays for fuel, engine temp, speed, and warning lights
Connectivity Features:
N/A (pre-internet era automotive technology)
Oil Change Interval:
Every 3,000 miles or 3 months, whichever comes first (using conventional oil); extendable with synthetic oil (refer to manual for specifics)
Engine Coolant Change:
Initial change at 50,000 miles, then every 30,000 miles thereafter (or as specified by fluid type)
Transmission Fluid Change:
Recommended every 30,000 miles under normal driving conditions, or 15,000 miles under severe conditions
Engine Oil:
API SG, SAE 5W-30 (or 10W-30 depending on climate, consult manual)
Engine Coolant:
GM 1825M coolant (ethylene glycol based) mixed 50/50 with distilled water
Power Steering Fluid:
GM Power Steering Fluid (or equivalent)
Common Complaints:
Water pump leaks, intake manifold gasket leaks, dashboard cracking (due to age/UV exposure), HVAC blower motor resistor failure, electronic control module (ECM) issues
Typical Repairs:
Replacement of seals and gaskets, coolant system overhauls, suspension component replacement (bushings, ball joints), brake system maintenance
