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 MANUALSPONTIAC1990GRAND PRIX STE, 3.1 VREPAIR AND DIAGNOSIS (SINGLE PAGE)SUSPENSIONWHEEL ALIGNMENTWHEEL ALIGNMENT SPECIFICATIONS & PROCEDURESALIGNMENT SPECIFICATIONS
1990 Pontiac Grand Prix STE, 3.1 V
Alignment Specifications
1990 Pontiac Grand Prix STE, 3.1 VSECTION Alignment Specifications
WHEEL ALIGNMENT SPECIFICATIONS ("W" BODY)
| Application | Fraction | Decimal | ||||
|---|---|---|---|---|---|---|
| Camber (Degrees) | ||||||
| Front | 11/16 +/- 1/2 | (.7 +/- .5) | ||||
| Rear | ||||||
| Cutlass Supreme | -5/32 +/- 1/2 | (-.15 +/- .5) | ||||
| Grand Prix | 1/2 +/- 1/2 | (.5 +/- .5) | ||||
| Lumina & Regal | 13/32 +/- 1/2 | (.4 +/- .5) | ||||
| Caster (Degrees) (1) | ||||||
| Cutlass Supreme, Lumina & Regal | 2 +/- 1/2 | (2 +/- .5) | ||||
| Grand Prix | 1 13/16 +/- 1/2 | (1.8 +/- .5) | ||||
| Toe-in (Inches) | ||||||
| Front | 0 +/- 3/32 | (0 +/- .1) | ||||
| Rear | 0 +/- 5/32 | (0 +/- .15) | ||||
| Toe-in (Degrees) | ||||||
| Front | 0 +/- 13/64 | (0 +/- .2) | ||||
| Rear | 0 +/- 5/16 | (0 +/- .3) | ||||
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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.