1991 GMC Sierra
US · Pickup · Standard Pickup Trucks 4WD
The 1991 GMC Sierra is listed in the US market as a pickup. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 4.3L 6-cylinder (FFS), 5.0L 8-cylinder (FFS), 5.7L 8-cylinder (350 V8) (FFS), 6.2L 8-cylinder (NO-CAT), 6.2L 8-cylinder (DIESEL) (NO-CAT)
- Transmission
- Varies by configuration: Automatic, Manual
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Varies by configuration: Gasoline, Diesel
- Economy
- 12 mpg (19.6 L/100 km) to 20 mpg (11.8 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 4.3L 6-cylinder (FFS), 5.0L 8-cylinder (FFS), 5.7L 8-cylinder (350 V8) (FFS), 6.2L 8-cylinder (NO-CAT), 6.2L 8-cylinder (DIESEL) (NO-CAT) | |
| Displacement | 4.3 L to 6.2 L | |
| Cylinders | 6 to 8 | |
| Fuel type | Varies by configuration: Gasoline, Diesel | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Varies by configuration: Automatic, Manual | |
| Gears | 4 to 5 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 12 mpg (19.6 L/100 km) to 20 mpg (11.8 L/100 km) | EPA fueleconomy.gov |
| City | 11 mpg (21.4 L/100 km) to 18 mpg (13.1 L/100 km) | |
| Highway | 13 mpg (18.1 L/100 km) to 23 mpg (10.2 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
27 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
- Sierra 1500 2WD · 4.3L · RWD · 4-speed automatic
- Sierra 1500 2WD · 4.3L · RWD · 4-speed manual
- Sierra 1500 2WD · 4.3L · RWD · 5-speed manual
- Sierra 1500 2WD · 4.3L · RWD · 5-speed manual
- Sierra 1500 2WD · 5.0L · RWD · 4-speed automatic
- Sierra 1500 2WD · 5.0L · RWD · 5-speed manual
- Sierra 1500 2WD · 5.7L · RWD · 4-speed automatic
- Sierra 1500 2WD · 5.7L · RWD · 4-speed manual
- Sierra 1500 2WD · 5.7L · RWD · 5-speed manual
- Sierra 1500 2WD · 5.7L · RWD · 5-speed manual
- Sierra 1500 2WD · 6.2L · RWD · 4-speed automatic · Diesel
- Sierra 1500 2WD · 6.2L · RWD · 4-speed manual · Diesel
- Sierra 1500 2WD · 6.2L · RWD · 5-speed manual · Diesel
- Sierra 1500 4WD · 4.3L · AWD · 4-speed automatic
- Sierra 1500 4WD · 4.3L · AWD · 4-speed manual
- Sierra 1500 4WD · 4.3L · AWD · 5-speed manual
- Sierra 1500 4WD · 4.3L · AWD · 5-speed manual
- Sierra 1500 4WD · 5.0L · AWD · 4-speed automatic
- Sierra 1500 4WD · 5.0L · AWD · 5-speed manual
- Sierra 1500 4WD · 5.7L · AWD · 4-speed automatic
- Sierra 1500 4WD · 5.7L · AWD · 4-speed manual
- Sierra 1500 4WD · 5.7L · AWD · 5-speed manual
- Sierra 1500 4WD · 5.7L · AWD · 5-speed manual
- Sierra 1500 4WD · 6.2L · AWD · 4-speed automatic · Diesel
- Sierra 1500 4WD · 6.2L · AWD · 4-speed manual · Diesel
- Sierra 1500 4WD · 6.2L · AWD · 5-speed manual · Diesel
- Sierra 2500 4WD · 6.2L · AWD · 5-speed manual · Diesel
Recalls
NHTSA lists 2 recall campaigns for this model year. Last checked November 7, 2026.
08E050000: EXTERIOR LIGHTING:HEADLIGHTS
K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FAILS TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Remedy: K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 2008. OWNERS MAY CONTACT K2 MOTOR AT 1-909-839-2992.
Reported August 11, 2008. View on NHTSA
93V119000: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
SEVERE CORROSION DUE TO ROAD SALT AT THE JOINT OF THE STAMPED STEEL CENTER SECTION AND THE CAST OUTER SECTION CAN CAUSE THE SECTIONS TO SEPARATE.
Remedy: REPLACE THE FRONT BRAKE ROTORS WITH NEW ROTORS WITH A CORROSION PROTECTION COATING. HOWEVER, IF REPLACEMENT OF BRAKE LININGS ARE NECESSARY, IT WILL BE DONE AT OWNER'S EXPENSE SINCE BRAKE LININGS ARE NORMAL MAINTENANCE ITEMS.
Reported August 2, 1993. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 21, 2026 · US Government public data
- NHTSA vPIC · retrieved October 21, 2026 · US Government public data
Source checked: October 21, 2026
Data verified: October 21, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
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18 mpg (13.1 L/100 km) to 12 mpg (19.6 L/100 km)
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Frequently asked questions
What engine does the 1991 GMC Sierra have?
Varies by configuration: 4.3L 6-cylinder ((FFS)), 5.0L 8-cylinder ((FFS)), 5.7L 8-cylinder ((350 V8) (FFS)), 6.2L 8-cylinder ((NO-CAT)), 6.2L 8-cylinder ((DIESEL) (NO-CAT)). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1991 GMC Sierra?
Combined fuel economy is 12 mpg (19.6 L/100 km) to 20 mpg (11.8 L/100 km), as published by the source shown in the specification table.
Is the 1991 GMC Sierra front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
Are there recalls for the 1991 GMC Sierra?
NHTSA lists 2 recall campaigns for this model year (last checked November 7, 2026). Details are in the Recalls section.