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1991 Pontiac Firebird CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Pontiac 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
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 Pontiac Firebird car and truck
repair procedures including Pontiac 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 Pontiac Firebird automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> Chevrolet Camaro & Pontiac Firebird
Vehicle: 1991 Pontiac Firebird 5.0 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> COMPONENT DESCRIPTION -> BRAKE DISTRIBUTION VALVE & SWITCH -> BRAKE WARNING LAMP SWITCHES -> COMBINATION VALVE -> Failure Warning Switch -> Fluid Level Sensor -> Metering Valve -> Proportioning or Pressure Control Valve -> Testing Warning Lamp Operation
Vehicle: 1991 Pontiac Firebird Trans AM GTA 5.0 V8 GAS
BRAKE WARNING LAMP SWITCHES
There are four basic types of brake warning lamp switches as shown,Figs. through . When a pressure differential occurs between the front and rear brake systems, the valves will shuttle toward the side with the low pressure.
In the switch shown inFig. , movement of the differential valve forces the switch plunger upward over the tapered shoulder of the valve to close the switch contacts and light the dual brake warning lamp, signaling a brake system failure.
InFig. , the valve assembly consists of two valves in a common bore that are spring loaded ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Fuel Filter Replacement -> Except Aveo, Chevette 1.8L Diesel, Corvette, GTO, LaCrosse, Malibu (2004-06) & Malibu Maxx, Vibe, XLR, 2004-05 Corvette & 1998-2002 Metro & Prizm
Vehicle: 1991 Pontiac Firebird Formula 5.0 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 v...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 1991 Pontiac Firebird 3.1 V6 GAS
- Raise and support vehicle.
- Mark position of shaft in relation to pinion flange for reassembly.
- Remove straps securing universal joint to pinion flange, then disconnect shaft from flange. Tape bearing cups to universal joint to pre...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
Alternator, Replace
Vehicle: 1991 Pontiac Firebird 5.0 V8 GAS
- Disconnect battery ground cable.
- Remove throttle body air inlet duct, then apply parking brake.
- Place transaxle in neutral gear position.
- Remove engine mount strut bolts and position mount aside.
- Install suitable engine ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
General Motors Corp./Saturn Cars -> Low Washer Fluid Indicator ->
Vehicle: 1991 Pontiac Firebird Trans AM GTA 5.7 V8 GAS
The windshield washer solvent tank has a switch that closes when the wash...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Pontiac Firebird Formula 5.7 V8 GAS
- Disconnect battery ground cable.
- Drain engine cooling system into a suitable container.
- Remove air cleaner assembly.
- Remove intake duct.
- Remove mass air flow (MAF) sensor, if equipped.
- Remove coolant recovery hose.
- Remove heater hose and clamp.
- Remove electric cooling fan mounting bolts.
- Remove electric cooling fans.
- Remove upper radiator hose clamp.
- Disconnect upper radiator hose from radiator.
- Remove lower radiator hose clamp.
- Disconnect lower radia...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Pontiac Firebird AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Pontiac Firebird 5.0 V8 GAS
- Disconnect battery ground cable.
- Lift tensioner upward and off drive belt...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Pontiac Firebird AUTOMOBILES
Component location diagrams for most 1991 Pontiac Firebird cars and light trucks sold in the U.S. from 1990+.
 Behind LH Side Of I/P Diagram for 1991 Pontiac Firebird Trans AM GTA 5.0 V8 GASComponents on diagram: |
 RH Rear Of Engine Diagram for 1991 Pontiac Firebird Trans AM 5.0 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 Pontiac Firebird AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Pontiac Firebird cars and light trucks sold in the U.S.
 1991 Pontiac Firebird Trans AM 5.0 V8 GAS Wiring DiagramComponents on diagram: |
 1991 Pontiac Firebird Formula 5.0 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Pontiac Firebird AUTOMOBILES
OEM TSB listings for most 1991 Pontiac Firebird 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 Pontiac Firebird 3.1 V6 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Pontiac Firebird 3.1 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Pontiac Firebird AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Pontiac Firebird 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 Pontiac Firebird 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 Pontiac Firebird 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 Pontiac Firebird 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 1991 Pontiac Firebird SPECIFICATIONS DATA!
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