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1991 Cadillac Eldorado CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Cadillac 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
- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Cadillac Eldorado 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 Eldorado automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> Allante & 1990-92 Fleetwood & 1990-2002 Cadillac DeVille, Eldorado & Seville
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston w/Dual Mounting Bolts (Type 4) -> DESCRIPTION
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
This caliper, Figs. and , has a single bore and is mounted to the support bracket with two mounting bolts. Hydraulic pressure, created by applying force to the brake pedal, is converted by the caliper into friction. The hydraulic pressure is applied equally against the piston and the bottom of the caliper bore moving the piston outward and the housing inward, resulting in a clamping action on the brake rotor.
Rear ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Cadillac Eldorado 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: 1991 Cadillac Eldorado 4.9 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 1991 Cadillac Eldorado AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
- Remove hub nut, then raise and support vehicle and remove wheel and tire assembly.
- Remove brake caliper and rotor assembly.
- Remove stabilizer link or stabilizer bar from control arm.
- Remove tie rod end at steering knuckle, then remove lower ball joint stud at steering knuckle.
- Remove axle from transaxle using a prybar or screwdriver and a wood block as a fulcrum to protect case co...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
Alternator, Replace
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
- Disconnect battery ground cable.
- Remove accessory drive belt.
- Remove upper front bolt.
- Remove radiator.
- Raise and suitably support vehicle.
- Remove front engine splash shield.
- Loosen rear alternator bracket from engine.
- Remove top bolt.
- Remove front lower mounting bolt.
- Remove lower rear mounting bolt.
- Remove upper rear mounting bolt.
- Remove duct from back of alternator.
- Disconnect regulator electrical connectio...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
General Motors Corp./Saturn Cars -> Check Engine Or Service Now Soon Engine Indicator Lamps (Gasoline Engines w/Electronic Engine Controls Or EFI) -> Except LeMans, Metro, Prizm, Storm & Vibe
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
The Check Engine lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a fault condition and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM memory can be cleared of codes as follows:
On models except Cadillac with DEFI, remove the ECM/PCM fuse or disconnect the battery ground cable for approximately 30...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
Lower
- Drain coolant into a suitable container.
- Loosen hose clamp connecting hose to radiator.
- Loosen hose clamp connecting hose to water pump inlet.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Cadillac Eldorado AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS
- Disable airbag system.
- Rotate belt tensioner upward from drive bel...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Cadillac Eldorado AUTOMOBILES
Component location diagrams for most 1991 Cadillac Eldorado cars and light trucks sold in the U.S. from 1990+.
 LH Rear Of Engine Diagram for 1991 Cadillac Eldorado 4.9 V8 GASComponents on diagram: |
 Lower LH Front Of Engine Diagram for 1991 Cadillac Eldorado 4.9 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 Cadillac Eldorado AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Cadillac Eldorado cars and light trucks sold in the U.S.
 1991 Cadillac Eldorado 4.9 V8 GAS Wiring DiagramComponents on diagram: |
 1991 Cadillac Eldorado 4.9 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Cadillac Eldorado AUTOMOBILES
OEM TSB listings for most 1991 Cadillac Eldorado cars and light trucks sold in the U.S. from 1985+.
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Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Cadillac Eldorado 4.9 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Cadillac Eldorado AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Cadillac Eldorado 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 1991 Cadillac Eldorado 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 1991 Cadillac Eldorado 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 1991 Cadillac Eldorado 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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