Chevrolet Sonic Repair Manual: Hub/Axle Flange and Wheel Stud Runout Inspection
Special Tools
GE-8001 Dial Indicator Set , or equivalent
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
- Mark the location of the wheels to the wheel studs and mark the specific
vehicle position on each tire and wheel – LF, LR, RF, RR.
- Remove the tire and wheel assemblies from the vehicle. Refer to Tire and
Wheel Removal and Installation.
- Remove the brake rotors and/or brake drums from the vehicle. Clean the mounting
surfaces of the brake rotors, the brake drums, if equipped, and the hub/axle
flanges of any loose debris, rust, and corrosion.
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- Position the GE-8001 Dial Indicator Set , or equivalent, on the machined
surface of the wheel hub/axle flange outside of the wheel studs.
- Rotate the hub one complete revolution in order to find the low spot.
- Set the GE-8001 Dial Indicator Set , or equivalent, to zero at the
low spot.
- Rotate the hub one more complete revolution and measure the total amount
of wheel hub/axle flange runout.
Specification – Guideline
Wheel hub/axle flange runout tolerance guideline: 0.132 mm (0.005 in)
- If the runout of the wheel hub/axle flange IS within specification and the
vehicle is equipped with wheel studs, proceed to step 13.
- If the runout of the wheel hub/axle flange IS within specification and the
vehicle is equipped with wheel bolts, proceed to step 19.
- If the runout of the wheel hub/axle flange is marginal, the wheel hub may
or may not be the source of the disturbance.
- If the runout of the wheel hub/axle flange is excessive, replace the wheel
hub/axle flange. Measure the runout of the new wheel hub/axle flange.
- Position the GE-8001 Dial Indicator Set , or equivalent, in order
to contact the wheel mounting studs.
Measure the stud runout as close to the flange as possible.
- Turn the hub one complete revolution to register on each of the wheel studs.
- Zero the GE-8001 Dial Indicator Set , or equivalent, on the lowest
stud.
- Rotate the hub one more complete revolution and measure the total amount
of wheel stud – stud circle – runout.
Specification – Guideline
Wheel stud runout tolerance guideline: 0.254 mm (0.010 in)
- If the runout of the wheel studs – stud circle – is marginal, the wheel
studs may or may not be contributing to the disturbance.
- If the runout of the wheel studs – stud circle – is excessive, replace the
wheel studs as necessary. Measure the runout of the new wheel studs.
- Inspect the threads and the tapered seat portion on each of the wheel bolts
for damage.
- Wheel bolts exibiting damaged threads and/or damaged tapered seats require
replacement.
- Place the threaded portion of each wheel bolt along a straight edge to inspect
for straightness.
- Wheel bolts that are not straight require replacement.
The factory installed tires are designed to operate satisfactorily with loads
up to and including the full rated load capacity when these tires are inflated to
the recommended pressures.
The fol ...
At a constant highway speed on a typical straight road, lead/pull is the amount
of effort required at the steering wheel to maintain the vehicle's straight path.
Important: Vehicles will t ...
Other materials:
Older Children
Older children who have outgrown booster seats should wear the vehicle safety
belts.
The manufacturer instructions that come with the booster seat state the weight
and height limitations for that booster. Use a booster seat with a lap-shoulder
belt until the child passes the fit test below: ...
Body Control System Description and Operation
The body control system consists of the body control module (BCM), communications,
and various input and outputs. Some inputs, outputs and messages require other modules
to interact with the BCM. The BCM also has discrete input and output terminals to
control the vehicle's body functions. ...
Low and Reverse and 1-2-3-4 Clutch Housing Assemble (6T30)
Table 1:
1??? Clutch Piston Installation
Table 2:
Low and Reverse Clutch Piston Installation
1??? Clutch Piston Installation
1??? Clutch Piston Installation
Callout
Component Name
...
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