1984 Pontiac Firebird/Trans Am/Formula
US · Subcompact Cars
The 1984 Pontiac Firebird/Trans Am/Formula is listed in the US market 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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 (CAL)(FFS), 2.5L 4-cylinder (FFS) CA model), 2.8L 6-cylinder (FFS), 2.8L 6-cylinder (FFS) CA model), 5.0L 8-cylinder (GM-CHEV), 5.0L 8-cylinder (GM-CHEV) CA model)
- Transmission
- Varies by configuration: Automatic, Manual
- Fuel
- Gasoline
- Economy
- 15 mpg (15.7 L/100 km) to 23 mpg (10.2 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.5L 4-cylinder (CAL)(FFS), 2.5L 4-cylinder (FFS) CA model), 2.8L 6-cylinder (FFS), 2.8L 6-cylinder (FFS) CA model), 5.0L 8-cylinder (GM-CHEV), 5.0L 8-cylinder (GM-CHEV) CA model) | |
| Displacement | 2.5 L to 5.0 L | |
| Cylinders | 4 to 8 | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Varies by configuration: Automatic, Manual | |
| Gears | 4 to 5 |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 15 mpg (15.7 L/100 km) to 23 mpg (10.2 L/100 km) | EPA fueleconomy.gov |
| City | 13 mpg (18.1 L/100 km) to 20 mpg (11.8 L/100 km) | |
| Highway | 20 mpg (11.8 L/100 km) to 29 mpg (8.1 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Drivetrain, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
14 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
- Firebird · 2.5L · 4-speed automatic
- Firebird · 2.5L · 4-speed automatic
- Firebird · 2.5L · 4-speed manual
- Firebird · 2.5L · 4-speed manual
- Firebird · 2.5L · 5-speed manual
- Firebird · 2.5L · 5-speed manual
- Firebird · 2.8L · 4-speed automatic
- Firebird · 2.8L · 4-speed automatic
- Firebird · 2.8L · 5-speed manual
- Firebird · 2.8L · 5-speed manual
- Firebird · 5.0L · 4-speed automatic
- Firebird · 5.0L · 4-speed automatic
- Firebird · 5.0L · 5-speed manual
- Firebird · 5.0L · 5-speed manual
Recalls
No recall campaigns were found in NHTSA data at the last check. Last checked November 10, 2026.
Data sources
- EPA fueleconomy.gov · retrieved October 25, 2026 · US Government public data
- NHTSA vPIC · retrieved October 25, 2026 · US Government public data
Source checked: October 25, 2026
Data verified: October 25, 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
Varies by configuration: 2.8L 6-cylinder ((FFS) CA model), 5.0L 8-cylinder ((FFS) CA model), 2.5L 4-cylinder ((FFS)), 2.8L 6-cylinder ((FFS)), 5.0L 8-cylinder ((GM-CHEV) (FFS)), 5.0L 8-cylinder ((FFS)) · RWD
24 mpg (9.8 L/100 km) to 17 mpg (13.8 L/100 km)
Frequently asked questions
What engine does the 1984 Pontiac Firebird/Trans Am/Formula have?
Varies by configuration: 2.5L 4-cylinder ((CAL)(FFS)), 2.5L 4-cylinder ((FFS) CA model), 2.8L 6-cylinder ((FFS)), 2.8L 6-cylinder ((FFS) CA model), 5.0L 8-cylinder ((GM-CHEV)), 5.0L 8-cylinder ((GM-CHEV) CA model). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 1984 Pontiac Firebird/Trans Am/Formula?
Combined fuel economy is 15 mpg (15.7 L/100 km) to 23 mpg (10.2 L/100 km), as published by the source shown in the specification table.
Are there recalls for the 1984 Pontiac Firebird/Trans Am/Formula?
No recall campaigns were found in NHTSA data when we last checked on November 10, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.