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1991 GMC Sonoma

US · Pickup · Small Pickup Trucks

The 1991 GMC Sonoma is listed in the US market as a pickup with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 2.5L 4-cylinder (FFS), 2.8L 6-cylinder (FFS), 4.3L 6-cylinder (FFS)
Transmission
Varies by configuration: Automatic, Manual
Drivetrain
Varies by configuration: RWD, AWD
Fuel
Gasoline
Economy
16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
2.5L 4-cylinder (FFS), 2.8L 6-cylinder (FFS), 4.3L 6-cylinder (FFS)
Combined Economy
16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km) combined
Drivetrain
RWD, AWD
Transmission
Automatic, Manual
Market: US·Switch units to convert the figures shown.
Compare 1991 GMC Sonoma ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 2.5L 4-cylinder (FFS), 2.8L 6-cylinder (FFS), 4.3L 6-cylinder (FFS)
Displacement2.5 L to 4.3 L
Cylinders4 to 6
Fuel typeGasoline

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionVaries by configuration: Automatic, Manual
Gears4 to 5
DrivetrainVaries by configuration: RWD, AWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km)
City14 mpg (16.8 L/100 km) to 21 mpg (11.2 L/100 km)
Highway19 mpg (12.4 L/100 km) to 26 mpg (9.0 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Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity.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

7 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 2 recall campaigns for this model year. Last checked November 7, 2026.

  • 06E043000: FUEL SYSTEM, GASOLINE

    CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS…

    Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).

    Reported May 19, 2006. View on NHTSA

  • 99V193000: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

    VEHICLE DESCRIPTION: CERTAIN 4-WHEEL DRIVE PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH ABS (ANTILOCK BRAKING SYSTEM) MANUFACTURED FROM SEPTEMBER 1989 THROUGH AUGUST 1996. UNDER CERTAIN DRIVING CONDITIONS THE SWITCH WHICH SIGNALS THE ABS SYSTEM WHETHER THE VEHICLE IS IN 2-WHEEL OR 4-WHEEL DRIVE CAN MALFUNCTION CAUSING INCREASED STOPPING DISTANCES DURING ABS STOPS WHILE IN THE…

    Remedy: DEALERS WILL REPLACE OR REPAIR THE 4-WHEEL/2-WHEEL DRIVE SWITCH.

    Reported July 19, 1999. 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.

Compare

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  • 1992 GMC Sonoma

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    19 mpg (12.4 L/100 km) to 13 mpg (18.1 L/100 km)

  • Varies by configuration: 2.5L 4-cylinder ((FFS)), 2.8L 6-cylinder ((FFS)), 4.3L 6-cylinder ((FFS)) · Varies by configuration: RWD, AWD
    22 mpg (10.7 L/100 km) to 16 mpg (14.7 L/100 km)

  • 1991 Chevrolet C1500 Pickup

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    20 mpg (11.8 L/100 km) to 10 mpg (23.5 L/100 km)

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Frequently asked questions

What engine does the 1991 GMC Sonoma have?

Varies by configuration: 2.5L 4-cylinder ((FFS)), 2.8L 6-cylinder ((FFS)), 4.3L 6-cylinder ((FFS)). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 1991 GMC Sonoma?

Combined fuel economy is 16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km), as published by the source shown in the specification table.

Is the 1991 GMC Sonoma front-wheel, rear-wheel or all-wheel drive?

Drivetrain: Varies by configuration: RWD, AWD.

Are there recalls for the 1991 GMC Sonoma?

NHTSA lists 2 recall campaigns for this model year (last checked November 7, 2026). Details are in the Recalls section.