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1994 Porsche 928 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Porsche REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Porsche -> Cooling Fans -> COMPONENT REPLACEMENT -> 911 -> 928 -> 968 -> CONDENSER FAN
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
CONDENSER FAN
911
- Disconnect battery ground cable.
- Disconnect electrical connector from front condenser assembly.
- Remove rubber clamping strap.
- Disconnect ventilation ducts from fan.
- Remove fan attaching screws, then the fan assembly.
- Reverse procedure to install.
928
- Remove vehicle grille.
- Disconnect fan harness leads, and remove cable ties from leads where required. ...
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BRAKE SERVICE PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Anti-lock Brakes -> Description
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
The anti-lock braking system prevents the wheels from locking in an emergency stop, until shortly before the vehicle comes to halt, thus assuring full steerability and directional stability. In addition, the system optimizes the braking distance corresponding to the varying degree of grip between the wheel and road surface.
The ABS control unit is matched to the approved tire dimensions. The use of unapproved tires can lead to different wheel speed...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Porsche -> Fuel Filter Scheduled Maintenance -> 1980-94 911, 924, 928, 944 & 968 -> Normal Service -> Severe Service
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
Normal Service
Replace ev...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
CV AXLE SHAFT, Replace -> Axle Shaft Bolted On Both Sides -> Axle Shaft Welded On One Side -> Rear
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
Rear
Axle Shaft Bolted On Both Sides
- Raise and support vehicle, then remove left rear wheel and tire assembly.
- Remove socket head bolts from drive flanges.
- Remove righthand axle shaft inward.
- Remove lefthand axle shaft outward.
- Reverse procedure to install, noting the following:
- Torque wheel lug nuts to 80 ft. lbs.
- Torque socket head bolts to 60 ft. lbs.
Axle Shaf...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Starter, Replace
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
- Disconnect battery ground cable.
- Disconnect battery and alternator wiring.
- Disconn...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Porsche -> Check Engine Lamp -> -> DME System M 09, ME 7.2 & ME 7.8 -> DME System ME 5.2 -> Except DME System M 09, ME 5.2, ME 7.2 & ME 7.8
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
Except DME System M 09, ME 5.2, ME 7.2 & ME 7.8
The Check Engine lamp will be illuminated when the ignition switch is in the on position with engine not running. When the engine is started, the lamp should go out. If the lamp remains lit, a diagnostic trouble code has been stored by the Electronic Control Unit (ECU). After diagnosis and repair are complete, place ignition switch in on position without starting engine, then depress accelerator pedal fully for more than 11 seconds. ECU memory should be cleared and the Check Engine lamp should be reset.
DME System ME 5.2
The Check Engine lamp will b...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
Lower
- Drain coolant into a suitable container.
- Reposition clamp at radiator and remove hose.
- Reposition clamp at coolant pipe and remove hose.
- Remove hose from vehicle.
- Reverse procedure ...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1994 Porsche 928 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS
- Remove vehicle grille.
- Disconnect fan harness leads, then remove cable ties from leads where required.
- Disconnect left and right brackets at condenser.
- Remove two upper fan housing mounting screws, then the lower mounting screw ...
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COMPONENT LOCATION DIAGRAMS FOR 1994 Porsche 928 AUTOMOBILES
Component location diagrams for most 1994 Porsche 928 cars and light trucks sold in the U.S. from 1990+.
Connector & Ground Locations Diagram for 1994 Porsche 928 GTS 5.4 V8 GAS Components on diagram: |
Component Locations Diagram for 1994 Porsche 928 GTS 5.4 V8 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1994 Porsche 928 AUTOMOBILES
OEM drawn wiring diagrams for most 1994 Porsche 928 cars and light trucks sold in the U.S.
1994 Porsche 928 GTS 5.4 V8 GAS Wiring Diagram Components on diagram: |
1994 Porsche 928 GTS 5.4 V8 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1994 Porsche 928 AUTOMOBILES
OEM TSB listings for most 1994 Porsche 928 cars and light trucks sold in the U.S. from 1985+.
Document: WARRANTY ADMINISTRATION - CSO SURCHARGES NOT ALLOWED ON WARRANTY CLAIMS Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS Auto Systems: |
Document: OVERVIEW OF APPROVED ENGINE OILS - REVISED Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1994 Porsche 928 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1994 Porsche 928 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1994 Porsche 928 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1994 Porsche 928 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1994 Porsche 928 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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