Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1988 Pontiac Fiero Formula, AutomaticFACTORY OEM SERVICE PROCEDURE
Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | |
|---|---|---|
| Fuel Feed Line Nut (2.3L) | 22 (30) | |
| Fuel Rail Bolt | ||
| 2.0L | 15-20 (20-27) | |
| 2.3L | 19 (26) | |
| 2.8L | 19 (26) | |
| Plenum Bolt | ||
| 2.8L | 16 (22) | |
| 5.0L & 5.7L | 16-18 (22-24) | |
| Regulator Fuel Fitting (2.8L) | 20 (27) | |
| Runner Bolt | ||
| 5.0L & 5.7L | 19 (26) | |
| Throttle Body Bolt | ||
| 2.3L, 5.0L & 5.7L | 18 (24) | |
| All Others | 11 (15) | |
| INCH Lbs. (N.m) | ||
| IAC Valve Retaining Screw | 18 (2.0) | |
| Pressure Regulator Retaining Bolt (2.3L) | 44 (4.9) | |
| Regulator-To-Bracket Bolt (2.8L) | 28 (3.2) | |
| Bracket-To-Rail Bolt | ||
| 5.0L & 5.7L | 44 (4.9) | |
| Crossover Tube Retainer Bolt | ||
| 5.0L & 5.7L | 44 (4.9) | |
| Regulator-To-Base Bolt | ||
| 5.0L & 5.7L | 44 (4.9) | |
| All Others | 30 (3.4) | |
| TPS Retaining Screw | 18 (2.0) | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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