1990 Cadillac Deville REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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1990 Cadillac Deville CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Cadillac REPAIR SHOPS DON'T WANT YOU TO KNOW

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Cadillac Deville car and truck repair procedures including Cadillac 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 Cadillac Deville 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 Cadillac mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1990 Cadillac Deville 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 1990 Cadillac Deville AUTOMOBILES

A/C & Cooling System Maintenance -> General Motors Corp. -> Allante & 1990-92 Fleetwood & 1990-2002 Cadillac DeVille, Eldorado & Seville
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

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BRAKE SERVICE PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

ANTI-LOCK BRAKES, GENERAL MOTORS -> 1990 Bonneville, DeVille, Eighty-Eight, Electra, Fleetwood, Ninety-Eight, Park Avenue & 6000 (Teves Type) -> COMPONENT REPLACEMENT -> FLUID RESERVOIR & SEALS -> Front Wheel -> HYDRAULIC ACCUMULATOR -> HYDRAULIC UNIT -> PRESSURE/WARNING SWITCH -> PUMP MOTOR ASSEMBLY -> Rear Wheel -> VALVE BLOCK ASSEMBLY -> WHEEL SENSOR
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

HYDRAULIC UNIT

  • Disconnect battery ground cable.
  • Depressurize accumulator, refer to .. "Depressurizing Hydraulic Accumulator" procedure.
  • Disconnect all hydraulic unit electrical connectors, then remove all brake fluid from fluid reservoir.
  • Remove pump attaching bolt, then position energy unit aside to gain access to brake pipes.
  • Disconnect hydraulic lines to valve block. Use caution not to twist lines.
  • On 6000 models, remove line attaching hydraulic unit to combination valve.
  • On all models, disconnect push rod from brake pedal, then push dust boot forward, past hex on pushrod.
  • Separa...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

General Motors Corp./Saturn Passenger Cars -> Fuel Pressure Relief -> Except Aveo, LaCrosse, LeMans (1988-93), Malibu & Malibu Maxx (2004-05), Metro, Nova, Prizm, Spectrum & Storm -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 1990 Cadillac Deville 4.5 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.

Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strateg...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

  • Raise and support vehicle, then remove tire and wheel assembly.
  • Install a brass drift or a screwdriver to prevent rotor from turning.
  • Remove shaft nut and washer.
  • Remove lower ball joint cotter and nut, then loosen ball joint using ball joint separator tool No. J-29330. If removing right axle, turn wheel to left, if removing left axle, turn wheel to right.
  • Separate joint by using a pry bar between suspension support and lower control arm.
  • Pull out on lower knuckle area and with a plasti...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

Starter, Replace
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

If shims are required between starter and engine block, they should be placed in original position during installation. If starter is noisy during cranking, remove double .015 inch shim or add .015 inch shim at outer bolt only. If high pitched whine is observed after engine starts, ...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

General Motors Corp./Saturn Cars -> Low Washer Fluid Indicator ->
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

The windshield washer solvent tank has a switch that closes when the wash...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

Inlet

  • Drain coolant into a suitable container.
  • Loosen hose clamp connecting hose to heater core inlet tube.
  • Loosen hose clamp connecting hose to water pump bypass tube.
  • Remove hose from vehicle.
  • Reverse procedure t...

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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Cadillac Deville AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

  • Disable airbag system.
  • Rotate belt tensioner upward from drive bel...

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COMPONENT LOCATION DIAGRAMS FOR 1990 Cadillac Deville AUTOMOBILES

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

Twilight Sentinel  Diagram for 1990 Cadillac Deville  4.5 V8 GASTwilight Sentinel Diagram for 1990 Cadillac Deville 4.5 V8 GAS

Components on diagram:
  • Fuel Data Center
  • I/P Cluster Connector
  • Twilight Sentinel Photocell
  • Connector C219
  • Information Center Connector
  • Lumbar Support Components Location Diagram for 1990 Cadillac Deville  4.5 V8 GASLumbar Support Components Location Diagram for 1990 Cadillac Deville 4.5 V8 GAS

    Components on diagram:
  • Seat Control Module
  • Lumbar Control Module
  • Seat
  • Seat Recliner Motor
  • Seat Air Pump Assembly
  • CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Deville PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1990 Cadillac Deville AUTOMOBILES

    OEM drawn wiring diagrams for most 1990 Cadillac Deville cars and light trucks sold in the U.S.

    1990 Cadillac Deville  4.5 V8 GAS Wiring Diagram1990 Cadillac Deville 4.5 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Cluster
  • Body Computer Module
  • Electronic Control Module
  • 1990 Cadillac Deville  4.5 V8 GAS Wiring Diagram1990 Cadillac Deville 4.5 V8 GAS Wiring Diagram

    Components on diagram:
  • Ignition Switch
  • Brake Fluid Level Switch
  • Brake Hydraulic Unit
  • CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Deville WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1990 Cadillac Deville AUTOMOBILES

    OEM TSB listings for most 1990 Cadillac Deville cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1990 Cadillac Deville 4.5 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Deville TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1990 Cadillac Deville AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Cadillac Deville 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 Cadillac Deville 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 Cadillac Deville 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 Cadillac Deville 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

    CLICK HERE TO GET FULL ACCESS TO 1990 Cadillac Deville SPECIFICATIONS DATA!

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