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1991 Chevrolet S10 Blazer CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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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 Chevrolet S10 Blazer car and truck
repair procedures including Chevrolet 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 Chevrolet S10 Blazer automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet & GMC S & T Series & Oldsmobile Bravada
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
ANTI-LOCK BRAKES, GENERAL MOTORS -> Four Wheel Anti-Lock Brake System -> DIAGNOSIS & TESTING -> CLEARING CODES -> DIAGNOSTIC CIRCUIT CHECK -> DIAGNOSTIC TESTS -> READING CODES -> WIRING DIAGRAMS
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
WIRING DIAGRAMS
Refer to "Wiring Diagrams" in "Vehicle Systems."
DIAGNOSTIC CIRCUIT CHECK
Refer to Figs. and for diagnostic circuit checks.
READING CODES
Trouble codes may be read with the TECH 1 scanner or by jumping terminal "H " of the ALDL to terminal "A" of the ALDL while observing the flashing of the "Anti-Lock" warning lamp. The terminals must be jumped for a few seconds before the code will begin.""
DIAGNOSTIC TESTS
[[table data]]CLEARING CODES
If the "Anti-Lock" warning lamp stays lit, the codes may be cleared with the TECH 1 scanner or by the following procedu...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Fuel Filter Scheduled Maintenance -> 1987-91 S/T Series Blazer, Bravada, Jimmy & Pickup -> Normal Service -> Severe Service
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
Normal Service
R...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
- Disconnect battery ground cable.
- Unlock steering column, then raise and support vehicle.
- Remove wheel assembly, then axle nut and washer.
- Support lower control arm, then remove lower shock absorber nut and bolt.
- Scribe all revolving driveshaft components in relation to connecting component to ensure correct balance upon assembly.
- Insert drift through opening in top of caliper into rotor cooler vanes to keep axle ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
Starter, Replace
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
Upon removal of starter, note if any shims are used. If shims are used, they should be installed in their original locations. After installation, if starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to outer bolt. If starter makes a high pitched whine after firing, add .015 inch double shims until noise ceases.
- Disconnect battery ground cable.
- Raise and support front of vehicle.
- Raise vehicle half way to gain access to starter motor.
- Re...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
General Motors Corp./Saturn Trucks -> Service Throttle Soon Indicator Lamp ->
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
A "Service Throttle Soon" indicator lamp is mounted in the lower righthand instrument cluster corner on these models. It lights when the ignition is turned On, but should go out approximately 1-5 seconds after the engine starts.
Traditional throttle cables are no longer used on these models. The PCM receives signals from an electron...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
- Drain cooling system into a suitable container.
- Remove overflow hose.
- Remove upper fan shroud.
- Remove radiator hose inlet.
- Remove radiator hose outlet.
- Remove heater outlet hose.
- Remove transmission oil cooler lines.
- Remove engine oil cooler lines.
- Remove two radiator mounting bolts.
- Remove radiator f...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
Component location diagrams for most 1991 Chevrolet S10 Blazer cars and light trucks sold in the U.S. from 1990+.
 Brake Pedal Switches Diagram for 1991 Chevrolet S10 Blazer 4.3 V6 GASComponents on diagram: |
 Brake Pedal Switches Diagram for 1991 Chevrolet S10 Blazer 4.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Chevrolet S10 Blazer cars and light trucks sold in the U.S.
 1991 Chevrolet S10 Blazer 4.3 V6 GAS Wiring DiagramComponents on diagram: |
 1991 Chevrolet S10 Blazer 4.3 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
OEM TSB listings for most 1991 Chevrolet S10 Blazer 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 Chevrolet S10 Blazer 4.3 V6 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Chevrolet S10 Blazer 4.3 V6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Chevrolet S10 Blazer AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Chevrolet S10 Blazer 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 Chevrolet S10 Blazer 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 Chevrolet S10 Blazer 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 Chevrolet S10 Blazer 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 Chevrolet S10 Blazer SPECIFICATIONS DATA!
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