Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

During pre-alignment visual inspection, you notice that the vehicle tends to lean to the left. The probable cause would be?

When a vehicle leans to one side in a pre-alignment visual inspection, the most likely cause is a loss of ride height on that corner due to a broken coil spring. A broken spring on the left side can no longer properly support the weight, so that corner drops and the body tilts toward the left. This suspension failure directly changes how the wheel sits relative to the chassis, which shows up as a noticeable lean during inspection and affects alignment readings. Worn tie rods or a faulty steering rack mainly alter steering geometry—toe, steering effort, and steering wheel alignment—rather than how high a corner sits, so they aren’t the primary cause of a visible lean. An underinflated tire could cause the car to sit lower on one corner, but a tire that is visibly low would usually be addressed by checking tire pressures first, and it’s less likely to produce a persistent lean unless the tire is significantly underinflated or flat. Thus, the broken spring is the best explanation for a left-side lean.

When a vehicle leans to one side in a pre-alignment visual inspection, the most likely cause is a loss of ride height on that corner due to a broken coil spring. A broken spring on the left side can no longer properly support the weight, so that corner drops and the body tilts toward the left. This suspension failure directly changes how the wheel sits relative to the chassis, which shows up as a noticeable lean during inspection and affects alignment readings.

Worn tie rods or a faulty steering rack mainly alter steering geometry—toe, steering effort, and steering wheel alignment—rather than how high a corner sits, so they aren’t the primary cause of a visible lean. An underinflated tire could cause the car to sit lower on one corner, but a tire that is visibly low would usually be addressed by checking tire pressures first, and it’s less likely to produce a persistent lean unless the tire is significantly underinflated or flat. Thus, the broken spring is the best explanation for a left-side lean.