GUARANTEE A+
✔✔When performing an axle alignment on a spring suspension with torque rods, all of
the following apply EXCEPT:
A. The adjustment is made through a lower adjustable torque rod.
B. The shims are used between the torque rod front and spring hanger bracket.
C. The adjustment is made with an eccentric bushing at the torque leaf.
D. The adjustment is made through the upper adjustable torque rods. - ✔✔Answer A is
incorrect. Axle alignment adjustment on a spring suspension with torque rods can be
made through a lower adjustable torque rod.
Answer B is incorrect. Shims can be used between the torque rod front and spring
hanger bracket to align the rear axle.
Answer C is correct. Some suspensions utilize a torque leaf in place of a torque rod.
Adjustment can be made with an eccentric bushing at the torque leaf. However, the
question is referring to how a torque arm may be adjusted, not a torque leaf.
Answer D is incorrect. Adjustments made through the upper torque arms generally set
the axle position from side to side and also pitch may be used to position the axle
housing to establish the proper driveline angle. This would be part of an axle alignment.
✔✔Two technicians are talking about inspection of collapsible steering columns.
Technician A says that a dial indicator stem should be placed against the lower end of
the steering shaft and then the steering wheel should be rotated. If the runout on the
dial indicator exceeds the OEM specification, the steering shaft is bent and must be
replaced. Technician B says that if the steering shaft is not bent but shows sheared
injection plastic, the shaft must be replaced Who is correct?
A only
B only
Both A and B
Neither A nor B - ✔✔Answer A is incorrect. Technician A is also correct.
Answer B is incorrect. Technician B is also correct.
Answer C is correct. Both Technicians are correct. If the runout on the dial indicator
exceeds the OEM specification, the steering shaft is bent and must be replaced. Also, if
the steering shaft is not bent but shows sheared injection plastic, the shaft must be
replaced.
Answer D is incorrect. Both Technicians are correct.
✔✔A driver complains that the front end hops, and upon inspection a technician notes
that there are cupping marls around the inner circumference of the tire. Which of these
is the LEAST LIKELY cause?
Shock absorbers
Worn spring shackle pins and bushings
Static wheel imbalance
Camber angle out of spec - ✔✔Answer A is incorrect. Worn shock absorbers can cause
cupping marks around the tire. Worn shock absorbers allow the tire to bounce causing a
, cupping mark in the tire. An out-of-specification toe setting causes feathered tire tread
wear. Under inflation will wear the edges of the tire. Overinfation will wear the center of
the tire. Camber causes wear on one ale of the tire. The wear occurs on the inside of
the tire with negative camber or the outside of the tire with positive camber.
Answer B is incorrect. Worn spring shackle pins and bushings will cause cupping
around the inner circumference of the tire. As with worn shocks, this condition allows
the fire to bounce causing a cupping mark in the tire.
Answer C is incorrect. Static imbalance allows the tire to bounce causing a cupping
mark in the tire.
Answer D is correct. Camber causes wear on one side of the tire around the entire
circumference. The wear occurs on the inside of the tire with negative camber or the
outside of the tire with positive camber
✔✔During an inspection, you see wetness on the shock body. What is your next steps
Perform a shock leak test.
Replace the wet shock.
Replace all shocks.
Determine if the shock is actually leaking. - ✔✔Answer A is incorrect. Before performing
a shock leakage test, a visual inspection should be performed to determine if the shock
is actually leaking or if the wetness noted is from another source.
Answer B is incorrect. Replacing the shock would be the last step in the process and
would Only be done after performing a visual inspection and shock leakage test.
Answer C is incorrect. It is not necessary to replace all of the shock absorbers until a
visual inspection and shock leakage test are first performed. It is recommended that if
one shock is determined to have failed, that all shock absorbers be replaced to ensure
equal dampening across the axle.
Answer D is correct. The next step is to determine if the shock is actually leaking.
Wetness on the shock body is normal and does not always indicate that the shock is
leaking.
✔✔Toe-out on turns is defined by what component?
Pitman arm
Ackerman arm
Drag link
Steering control arm - ✔✔Answer A is incorrect. The pitman arm is attached to the
steering gear output shaft and links the steering gear to the drag link. It changes the
rotating motion of the steering gear to axial motion.
Answer B is correct. Ackerman arms control the turning radius and allow for each front
wheel to rotate on different arcs while turning.
Answer C is incorrect. The drag link connects the pitman arm to the upper steering arm.
Answer D is incorrect. The steering control arm (upper steering arm) is connected to the
drag link and is the link between the drag link and the steering knuckle
✔✔Of the following, which is the LEAST LIKELY method used to adjust the axle
alignment on a spring suspension with torque rods?
Adjustment is made through the lower adjustable torque rod.