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1990 Porsche 944 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!Select Section
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Porsche 944 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 944 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
A/C & Cooling System Maintenance -> Porsche -> 928, 944, 968 & 1990-94 911
Vehicle: 1990 Porsche 944 3.0 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
PORSCHE, DISC BRAKES -> FRONT DISC BRAKE SERVICE -> 911 -> 911 Turbo -> 928 -> 944 -> 944 MODELS -> 944 Turbo -> BRAKE PADS, REPLACE -> CALIPER, REPLACE & SERVICE
Vehicle: 1990 Porsche 944 S2 3.0 L4 GAS
BRAKE PADS, REPLACE
911
- Raise and support vehicle.
- Using a pair of suitable pliers, remove brake pad pin retainers.
- Drive pad retaining pins out with a suitable drift and hammer.
- For pads that are still serviceable, mark their original positions for assembly reference.
- Remove the pads using tool P86, Fig. .
- Position pistons back in caliper using tool P83, Fig. . Brake fluid will be forced back into the reservoir. To prevent overflowing, siphon some fluid from reservoir.
- Clean brake pad contact surface in their slots in the caliper. Do not use mineral solvents or sharp edged to...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
Porsche -> Fuel Filter Replacement -> Except Cayenne & 1995-98 911
Vehicle: 1990 Porsche 944 S2 3.0 L4 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 1990 Porsche 944 AUTOMOBILES
CV AXLE SHAFT, Replace -> Rear
Vehicle: 1990 Porsche 944 S2 3.0 L4 GAS
Rear
- Raise and support vehicle.
- Remove cotter pin from hub castle nut.
- Remove castle nut with special tools P42a, P36b, P44a, and P296.
- Remove Allen bol...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
Starter, Replace
Vehicle: 1990 Porsche 944 S2 3.0 L4 GAS
- Disconnect battery ground cable at battery.
- Disconnect battery and alternator wiring, if equipped...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
Porsche -> Anti-Lock Brake System (ABS)/Traction Control System (TCS) Indicator ->
Vehicle: 1990 Porsche 944 S2 3.0 L4 GAS
The Anti-Lock Brake/Traction Control System 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. ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Porsche 944 AUTOMOBILES
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Porsche 944 S2 3.0 L4 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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COMPONENT LOCATION DIAGRAMS FOR 1990 Porsche 944 AUTOMOBILES
Component location diagrams for most 1990 Porsche 944 cars and light trucks sold in the U.S. from 1990+.
 Fuse/Relay Panel, Relay Locations Diagram for 1990 Porsche 944 3.0 L4 GASComponents on diagram: |
 Diagnostic Plug Location Diagram for 1990 Porsche 944 3.0 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1990 Porsche 944 AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Porsche 944 cars and light trucks sold in the U.S.
 1990 Porsche 944 S2 3.0 L4 GAS Wiring DiagramComponents on diagram: |
 1990 Porsche 944 S2 3.0 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Porsche 944 AUTOMOBILES
OEM TSB listings for most 1990 Porsche 944 cars and light trucks sold in the U.S. from 1985+.
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Document: WARRANTY ADMINISTRATION - CSO SURCHARGES NOT ALLOWED ON WARRANTY CLAIMS Vehicle: 1990 Porsche 944 3.0 L4 GAS Auto Systems: |
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Document: OVERVIEW OF APPROVED ENGINE OILS - REVISED Vehicle: 1990 Porsche 944 S2 3.0 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Porsche 944 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Porsche 944 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 1990 Porsche 944 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 1990 Porsche 944 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 1990 Porsche 944 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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