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.
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HOMESERVICE MANUALSBUICK1989SKYHAWK BASE, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - 2.8L/3.1L PFITORQUE SPECIFICATIONS
1989 Buick Skyhawk Base, 2D Coupe, Automatic
Torque Specifications
1989 Buick Skyhawk Base, 2D Coupe, AutomaticSECTION Torque Specifications
TORQUE SPECIFICATIONS
| Application | Ft. Lbs. (N.m) | ||
|---|---|---|---|
| Cold Start System 2.8L (VIN S) | |||
| Fuel Rail Fitting | 26 (35) | ||
| Cold Start Bolt & Fuel Nut | 20 (27) | ||
| EGR Tube (2.8L VIN S) | 19 (26) | ||
| Fuel Line Nuts | |||
| Inlet Line | |||
| 2.8L (VIN W) & 3.1L | 17 (23) | ||
| 2.8L (VIN S) | 20 (27) | ||
| Return Line | |||
| 2.8L (VIN W) & 3.1L | 17 (23) | ||
| 2.8L (VIN S) | 20 (27) | ||
| Fuel Rail Bolt (2.8L VIN S) | 19 (26) | ||
| Fuel Rail Fuel Line Fittings | |||
| Inlet Fitting (2.8L (VIN W) & 3.1L) | 35 (48) | ||
| Return Fitting (2.8L (VIN W) & 3.1L) | 30 (40) | ||
| IAC Valve (2.8L VIN S) | 13 (18) | ||
| Plenum Bolts | 16 (22) | ||
| Throttle Body Bolt | 19 (26) | ||
| INCH Lbs. (N.m) | |||
| Coolant Cover | 27 (3.0) | ||
| Fuel Block-To-Rail Bolts (2.8L VIN S) | 44 (4.9) | ||
| Fuel Rail Bolt (2.8L (VIN W) & 3.1L) | 88 (10) | ||
| IAC Valve Retaining Screw | 18 (2.0) | ||
| Pressure Regulator-To-Bracket Bolts (2.8L VIN W) | 28 (3.2) | ||
| TPS Retaining Screw | 18 (2.0) | ||
| Vacuum Fitting Cover | 30 (3.4) | ||
RENDER: 1.0x
NO RELATED
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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.