Engine Mechanical:
Engine assembly, disassembly, diagnosis, repair, timing, lubrication, cooling, fuel, emissions.
Engine Management:
ECU, sensors, actuators, ignition system, fuel injection, emissions control systems, diagnostic trouble codes (DTCs).
Transmission Automatic:
ZF 5HP24 automatic transmission service, overhaul, diagnosis, fluid specifications, control systems.
Drivetrain:
Drive shafts, differentials, axle components, wheel bearings.
Suspension Steering:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, steering rack, power steering system.
Brakes:
Brake system components (calipers, rotors, pads), ABS, DSC (Dynamic Stability Control), hydraulic system, brake fluid specifications.
Electrical System:
Wiring diagrams, battery, alternator, starter, lighting systems, fuses, relays, circuit protection.
Body Exterior:
Body panels, doors, hood, trunk, bumpers, convertible top mechanism (if applicable), trim, glass, mirrors.
Body Interior:
Seats, dashboard, interior trim, climate control system, airbags, restraint systems.
Climate Control:
HVAC system operation, diagnosis, refrigerant, components (compressor, condenser, evaporator).
Infotainment Audio:
Audio system, navigation system, speaker installation and repair, antenna.
Scheduled Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement.
Diagnostic Troubleshooting:
Step-by-step guides for diagnosing common and uncommon faults using symptom-based approaches and diagnostic tools.
Engine Repair:
Engine rebuild procedures, cylinder head removal and installation, piston and connecting rod replacement, crankshaft and bearing service.
Transmission Service:
Transmission fluid and filter replacement, transmission removal and installation, minor internal repairs.
Brake Service:
Brake pad and rotor replacement, brake caliper service, brake bleeding, ABS component diagnosis and replacement.
Suspension Steering Repair:
Replacement of shock absorbers, control arms, ball joints, tie rod ends, steering rack replacement.
Electrical Component Replacement:
Alternator, starter motor, battery, sensors, actuators, lighting components.
Bodywork Repair:
Panel alignment, rust repair, door and latch adjustment, convertible top repair and adjustment.
Air Conditioning Service:
Refrigerant recharge, component replacement (compressor, drier, expansion valve), leak detection.
Airbag Restraint System Service:
Airbag module replacement, sensor replacement, SRS system diagnosis.
Depth:
Comprehensive from basic maintenance to advanced diagnostics and full component overhaul.
Engine Code Early:
AJ26 (3.2L V8)
Engine Code Later:
AJ27 (4.0L V8), AJ34 (4.2L V8)
3.2L Horsepower:
Approx. 305 hp @ 6000 rpm
3.2L Torque:
Approx. 284 lb-ft @ 4250 rpm
4.0L Horsepower:
Approx. 370 hp @ 6000 rpm
4.0L Torque:
Approx. 383 lb-ft @ 4250 rpm
4.2L Horsepower:
Approx. 395 hp @ 6000 rpm
4.2L Torque:
Approx. 413 lb-ft @ 4250 rpm
Injection Type:
Sequential Electronic Fuel Injection (SEFI)
Fuel Type:
Premium Unleaded Gasoline
Configuration:
90-degree V8
Valvetrain:
Double Overhead Camshaft (DOHC), 4 valves per cylinder
Spark Plugs:
Specific iridium or platinum tipped plugs recommended (e.g., NGK IFR5N-11, Bosch Y5KPP332S) - check manual for exact fitment.
Timing Chain:
Timing chain driven, requires periodic inspection and potential replacement of tensioners and guides.
Oil Change Interval:
Every 10,000 miles or 12 months, whichever comes first. Use high-quality synthetic oil.
Transmission Fluid Change:
Recommended every 60,000 miles or 4 years (crucial for ZF 5HP24 longevity).
Coolant Change:
Every 30,000 miles or 2 years.
Spark Plug Replacement:
Typically every 60,000-100,000 miles depending on plug type (refer to manual).
Engine Oil Type:
Synthetic SAE 5W-30 or 5W-40 meeting Jaguar specification (e.g., Ford WSS-M2C153-E or similar).
Coolant Type:
Ethylene glycol-based coolant, Jaguar spec (e.g., Jaguar XJ6/XJ8/XK8 Coolant - CCE41600) or equivalent OAT coolant.
Brake Fluid Type:
DOT 4 (or DOT 3 if specified for specific components).
Timing Chain Tensioners:
Early AJ26/AJ27 engines are prone to brittle plastic timing chain tensioners which can fail, leading to catastrophic engine damage. Replacement with updated metal tensioners is highly recommended.
Aluminum Coolant Pipes:
Plastic/aluminum coolant pipes can degrade and leak, especially at the thermostat housing and heater matrix connections.
Transmission Reliability:
While robust, the ZF 5HP24 can suffer from mechatronic unit issues or torque converter problems if maintenance is neglected. Regular fluid changes are critical.
ABS Dsc Module:
The ABS/DSC control module (often a Bosch unit) can fail, leading to warning lights and loss of ABS/Traction control functionality. Repair or replacement may be needed.
Coil On Plug Ignition:
Coil-on-plug ignition system components (coils, spark plug wells) can deteriorate, causing misfires.
