1988 GMC Suburban
US · Special Purpose Vehicle 2WD
The 1988 GMC Suburban is listed in the US market. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 5.7L 8-cylinder (350 V8) (FFS), 6.2L 8-cylinder (NO-CAT)
- Transmission
- Varies by configuration: 4-speed automatic, 4-speed manual
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Varies by configuration: Gasoline, Diesel
- Economy
- 11 mpg (21.4 L/100 km) to 17 mpg (13.8 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 5.7L 8-cylinder (350 V8) (FFS), 6.2L 8-cylinder (NO-CAT) | |
| Displacement | 5.7 L to 6.2 L | |
| Cylinders | 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 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 11 mpg (21.4 L/100 km) to 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| City | 11 mpg (21.4 L/100 km) to 15 mpg (15.7 L/100 km) | |
| Highway | 13 mpg (18.1 L/100 km) to 21 mpg (11.2 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Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity.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
5 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.
93V016000: POWER TRAIN:AUTOMATIC TRANSMISSION
UNANTICIPATED HEAT IN THE TRANSMISSION CAN FORCE THE TRANSMISSION FLUID OUT OF THE VENT TUBE.
Remedy: INSTALL A LONGER TRANSMISSION VENT HOSE ROUTED TO THE LEFT SIDE OF THE ENGINE COMPARTMENT OF THE VEHICLE.
Reported February 1, 1993. View on NHTSA
89V010000: SEAT BELTS:FRONT:WEBBING
DRIVERS SEAT AND/OR SHOULDER BELT LOCKING MECHANISM MAY NOT OPERATE.
Remedy: INSTALL A NEW DRIVERS SEAT BELT ASSEMBLY.
Reported January 30, 1989. 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 22, 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.
Related vehicles
- 1987 GMC Suburban
Varies by configuration: Diesel, Gasoline
Varies by configuration: 6.2L 8-cylinder ((FFS) (DIESEL) (NO-CAT)), 5.0L 8-cylinder ((FFS)), 5.7L 8-cylinder ((350 V8) (FFS)), 6.2L 8-cylinder ((NO-CAT)) · Varies by configuration: AWD, RWD
18 mpg (13.1 L/100 km) to 11 mpg (21.4 L/100 km) - 1989 GMC Suburban
Varies by configuration: Gasoline, Diesel
Varies by configuration: 5.7L 8-cylinder ((350 V8) (FFS)), 6.2L 8-cylinder ((NO-CAT)) · Varies by configuration: RWD, AWD
17 mpg (13.8 L/100 km) to 12 mpg (19.6 L/100 km)
Frequently asked questions
What engine does the 1988 GMC Suburban have?
Varies by configuration: 5.7L 8-cylinder ((350 V8) (FFS)), 6.2L 8-cylinder ((NO-CAT)). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1988 GMC Suburban?
Combined fuel economy is 11 mpg (21.4 L/100 km) to 17 mpg (13.8 L/100 km), as published by the source shown in the specification table.
Is the 1988 GMC Suburban front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
Are there recalls for the 1988 GMC Suburban?
NHTSA lists 2 recall campaigns for this model year (last checked November 7, 2026). Details are in the Recalls section.