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.
1990 Isuzu Impulse AutomaticFACTORY OEM SERVICE PROCEDURE
Wheel Alignment Specifications
WHEEL ALIGNMENT SPECIFICATIONS (AMIGO)
| Application | Fraction | Decimal | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Camber (1) | 1/2 ± 1 | .5 ± 1.0 | ||||||||
| Caster (1) | 2 1/2 ± 3/4 | 2.50 ± .75 | ||||||||
| Toe-In (2) | 1/6 ± 1/6 | .16 ± .16 | ||||||||
| Toe-In (3) | 1/12 ± 1/12 | .08 ± .08 | ||||||||
| Toe-Out on Turns | (4) | (4) | ||||||||
| Steering Axis Inclination (SAI) (1) | 10 ± 1 | N/A | ||||||||
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WHEEL ALIGNMENT SPECIFICATIONS (IMPULSE)
| Application | Fraction | Decimal | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Camber (1) | |||||||||||
| Front | -1/2 ± 3/4 | -.50 ± .75 | |||||||||
| Rear | -1/2 ± 3/4 | -.50 ± .75 | |||||||||
| Caster (1) | |||||||||||
| Front | 3 ± 1 | 3.0 ± 1.0 | |||||||||
| Rear | -1/2 ± 3/4 | -.50 ± .75 | |||||||||
| Toe-In (2) | |||||||||||
| Front | 1/16 ± 1/16 | .06 ± .06 | |||||||||
| Rear | 1/4 ± 1/8 | .25 ± .12 | |||||||||
| Toe-In (3) | |||||||||||
| Front | 1/32 ± 1/32 | .03 ± .03 | |||||||||
| Rear | 1/8 ± 1/16 | .12 ± .06 | |||||||||
| Toe-Out on Turns | (4) | (4) * | |||||||||
| Steering Axis Inclination (SAI) (1) | 11 1/2-12 1/2 | N/A | |||||||||
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WHEEL ALIGNMENT SPECIFICATIONS (PICKUP)
| Application | Fraction | Decimal | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Camber | 1/2 ± 1 | .5 ± 1.0 | ||||||||||
| Caster | ||||||||||||
| 2WD | ||||||||||||
| Long Wheel Base | 1 3/4 ± 1/2 | 1.75 ± .50 | ||||||||||
| Short Wheel Base | 1 1/2 ± 1/2 | 1.50 ± .50 | ||||||||||
| 4WD | ||||||||||||
| Long Wheel Base | 2 1/4 ± 1/2 | 2.25 ± .50 | ||||||||||
| Short Wheel Base | 2 ± 1/2 | 2.0 ± .50 | ||||||||||
| Toe-In (1) | 1/6 ± 1/6 | .16 ± .16 | ||||||||||
| Toe-In (2) | 1/12 ± 1/12 | .08 ± .08 | ||||||||||
| Toe-Out on Turns | (3) | (3) | ||||||||||
| Steering Axis Inclination (SAI) (4) | 10 ± 1 | N/A | ||||||||||
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WHEEL ALIGNMENT SPECIFICATIONS (TROOPER)
| Application | Fraction | Decimal | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Camber (1) | 1/2 ± 1/2 | .50 ± .50 | ||||||||
| Caster (1) | 2 1/2 ± 1/2 | 2.50 ± .50 | ||||||||
| Toe-In (2) | 1/6 ± 1/6 | .16 ± .16 | ||||||||
| Toe-In (3) | 1/12 ± 1/12 | .08 ± .08 | ||||||||
| Toe-Out on Turns | (4) | (4) * | ||||||||
| Steering Axis Inclination (SAI) (1) | 10 ± 1/2 | N/A | ||||||||
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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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