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 MANUALSCADILLAC2002ELDORADO V8-4.6L VIN YREPAIR AND DIAGNOSISMAINTENANCEALIGNMENTDESCRIPTION AND OPERATIONTHRUST ANGLE DESCRIPTION
2002 Cadillac Eldorado V8-4.6L VIN Y
Thrust Angle Description
2002 Cadillac Eldorado V8-4.6L VIN YSECTION Thrust Angle Description
Thrust Angles Description
The front wheels aim or steer the vehicle. The rear wheels control tracking. This tracking action relates to the thrust angle (3). The thrust angle is the path that the rear wheels take. Ideally, the thrust angle is geometrically aligned with the body centerline (2).
In the illustration, toe-in is shown on the left rear wheel, moving the thrust line (1) off center. The resulting deviation from the centerline is the thrust angle.
Lead/Pull Description
Lead/pull is the deviation of the vehicle from a straight path, on a level road, without hand pressure on the steering wheel. Lead/pull is usually caused by the following factors:
- tire construction
- Uneven brake adjustment
- Wheel alignment
The way in which a tire is built may produce lead/pull. The rear tires will not cause lead.
The front wheels aim or steer the vehicle. The rear wheels control tracking. This tracking action relates to the thrust angle (3). The thrust angle is the path that the rear wheels take. Ideally, the thrust angle is geometrically aligned with the body centerline (2).
In the illustration, toe-in is shown on the left rear wheel, moving the thrust line (1) off center. The resulting deviation from the centerline is the thrust angle.
Lead/Pull Description
Lead/pull is the deviation of the vehicle from a straight path, on a level road, without hand pressure on the steering wheel. Lead/pull is usually caused by the following factors:
- tire construction
- Uneven brake adjustment
- Wheel alignment
The way in which a tire is built may produce lead/pull. The rear tires will not cause lead.
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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.