Porsche 928 REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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Porsche 928 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Porsche REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Porsche 928 car and truck repair procedures including Porsche engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your Porsche 928 automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Porsche mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your Porsche 928 vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR Porsche 928 AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Porsche 928 cars and light trucks from 1990+

Import Compressor Service -> Nippondenso Compressor -> COMPRESSOR CLUTCH SERVICE -> CLUTCH ASSEMBLY, REPLACE
Vehicle: 1995 Porsche 928 GTS 5.4 V8 GAS

CLUTCH ASSEMBLY, REPLACE

  • Remove shaft nut or bolt using 12 mm socket wrench and a strap wrench, Figs. and .
  • Remove pressure plate using pressure plate remover.
  • Remove shims from shaft.
  • Remove rotor (pulley) retaining snap ring using suitable snap ring pliers.
  • Remove rotor (pulley) by gently tapping it with plastic hammer. Some compressors may require a jaw puller.
  • Disconnect stator lead wires from compressor housing.
  • Remove stator retaining snap ring using suitable snap ring pliers, then remove stator from compressor hou...

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BRAKE SERVICE PROCEDURES FOR Porsche 928 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Porsche 928 cars and light trucks from 1990+.

Disc Brakes -> Tightening Specifications
Vehicle: 1995 Porsche 928 GTS 5.4 V8 GAS

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FUEL FILTER REPLACEMENT PROCEDURES FOR Porsche 928 AUTOMOBILES

Fuel filter replacement procedures with corresponding images for most domestic and imported Porsche 928 cars and light trucks sold in the U.S. for 1980+.

Porsche -> Fuel Filter Replacement -> Except Cayenne & 1995-98 911
Vehicle: 1995 Porsche 928 GTS 5.4 V8 GAS

Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

  • The fuel filter can be accessed after removing the underbody cover.
  • Disconnect the battery ground cable.
  • Disconnect the ground cable from filter.
  • Place a shop towel over fuel line to fuel filter connec...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Porsche 928 AUTOMOBILES

Includes CV axle, universal joint, and driveline replacement, for domestic and imported Porsche 928 cars and light trucks from 1990+.

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 Porsche 928 AUTOMOBILES

Includes starter and alternator replacement procedures for domestic and imported Porsche 928 cars and light trucks from 1990+.

Alternator, Replace
Vehicle: 1994 Porsche 928 GTS 5.4 V8 GAS

  • Remove righthand seat and open rear wall cover.
  • Disconnect alternator and starter battery power leads.
  • Remove serpentine drive belt.
  • Remove righthand mount bolt and loosen lefthand mounting bolt three turns, then gently tab bolt to loosen threaded bushed in alternator arm, use a suitable aluminum mandrel to tap bolt.
  • Remove alternator from slotted bracket, then the deflection roller.
  • Turn alternator cloc...

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MAINTENANCE LAMP RESET PROCEDURES FOR Porsche 928 AUTOMOBILES

Maintenance lamp reset procedures with corresponding images for most domestic and imported Porsche 928 cars and light trucks sold in the U.S. from 1990+.

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: 1991 Porsche 928 S4 5.0 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 Porsche 928 AUTOMOBILES

Includes radiator, cooling and heater hose replacement procedures for domestic and imported Porsche 928 cars and light trucks from 1990+

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1991 Porsche 928 GT 5.0 V8 GAS

Inlet

  • Drain coolant into a suitable container.
  • Reposition clamp at heater core and remove hose.
  • Reposition clamp at disc valve and remove hose.
  • Remove hose from vehicle.
  • Reverse procedure to i...

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SERPENTINE BELT SERVICE PROCEDURES FOR Porsche 928 AUTOMOBILES

Serpentine belt replacement procedures with corresponding images for most domestic and imported Porsche 928 cars and light trucks sold in the U.S. from 1990+.

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 Porsche 928 AUTOMOBILES

Component location diagrams for most Porsche 928 cars and light trucks sold in the U.S. from 1990+.

Connector & Ground Locations  Diagram for 1995 Porsche 928 GTS 5.4 V8 GASConnector & Ground Locations Diagram for 1995 Porsche 928 GTS 5.4 V8 GAS

Components on diagram:
  • Battery Ground Strap
  • Engine Power
  • Firewall
  • Left Hand Front Body
  • Left Hand Inner Wheel Housing
  •  Diagram for 1994 Porsche 928 GTS 5.4 V8 GAS Diagram for 1994 Porsche 928 GTS 5.4 V8 GAS

    Components on diagram:
  • Washing Fluid Level Switch
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    WIRING DIAGRAMS FOR Porsche 928 AUTOMOBILES

    OEM drawn wiring diagrams for most Porsche 928 cars and light trucks sold in the U.S.

    1991 Porsche 928 GT 5.0 V8 GAS Wiring Diagram1991 Porsche 928 GT 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Cigar Lighter
  • Blower Switch
  • Rear Window Defogger Switch
  • Outside Temperature Sensor
  • Evaporator Sensor
  • 1990 Porsche 928 S4 5.0 V8 GAS Wiring Diagram1990 Porsche 928 S4 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Power Mirror Switch
  • Power Mirror
  • Rear Power Seat Height Control
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    TECHNICAL SERVICE BULLETINS FOR Porsche 928 AUTOMOBILES

    OEM TSB listings for most Porsche 928 cars and light trucks sold in the U.S. from 1985+.

    Document: CAMSHAFT BELT TENSION INDICATOR LAMP TROUBLESHOOTING
    Vehicle: 1989 Porsche 928 S4 5.0 V8 GAS

    Auto Systems:
  • Gasoline Engines
  • Document: WORKSHOP MANUAL - SUPPLEMENTS
    Vehicle: 1988 Porsche 928 S4 5.0 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
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    COMPONENT/PARTS SPECIFICATIONS FOR Porsche 928 AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 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 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 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 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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