IK1700018 - CV Vibration - wheels

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Countries:

CANADA, UNITED STATES

Document ID: IK1700018

Availability:

ISIS, FleetISIS, Body Builder,
IsSIR

Revision:

2

Major System:

WHEELS

Created:

7/18/2019

Current
Language:

English

Last
Modified:

10/2/2019

Other
Languages:

NONE

Author:

Charles
Schroeder

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Title : CV Vibration - wheels
Applies To : CV

CHANGE LOG
Please refer to the change log text box below for recent changes to this article:
10/02/2019 - Updated service parts information to Contiental tires
08/20/2019 - Author updated for feedback purposes
08/12/2019 - Initial Article Release




DESCRIPTION
This article applies to CV vehicles that experience an objectionable wheel end vibration felt in the cab at highway speeds.
Possible Causes:
• Abnormal tire wear
• Excessive tire pressure
• Excess tire runout
• Excess wheel runout
• Excess wheel hub runout
• Worn or damaged wheel hub bearing
• Improper wheel hub bearing preload
• Differential carrier bearing problem
• Differential ring gear problem
• Damaged axle shafts

SYMPTOM(s)
Customer Observations or Concerns:
Wheel end vibration frequencies do not follow engine rpm, but rather vehicle speed. Driveline vibrations also follow vehicle
speed and should not be confused with a wheel end vibration.

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IK1700018 - CV Vibration - wheels

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Wheel end vibrations will be lower frequency than driveline vibrations. The driveline rotates at higher speed than the wheels:
Wheel speed x differential gear ratio = driveline speed. Wheel end vibrations will cause lower frequency (shake or hop), and
driveline vibrations will create higher frequency (buzz or whine).
Wheel end vibrations will not change when engine torque is varied.
Wheel end vibrations often occur within a specific vehicle speed range. When tire / wheel frequency aligns with the suspensions
natural frequency, resonance occurs increasing the driver's perception of excessive vibrations. Due to the suspensions natural
frequency a wheel end vibration can disappear when vehicle speed is increased or decreased beyond a specific resonance
speed range.
Some wheel end vibrations will phase in and out at the same vehicle speed. This is caused by multiple wheel end vibrations.
When in phase the vibration from one wheel will come in phase with the vibration from another wheel and cancel out the
vibration. When not in phase the vibration from one wheel will combine with another wheel creating a high amplitude vibration.

SPECIAL TOOL(s) / SOFTWARE
Use the Vibsense app or NVH app to measure the frequency of the vibration to determine if it is wheel end frequency. Please
follow IK0600020.

SERVICE PARTS INFORMATION
Primary path: Correct issue using the original tires and contact your local tire representative for assistance in
repairing/replacing any tires deemed to be faulty.

Optional path: Replace with tires shown below if the issue with the original tire supplier cannot be corrected.
Kit Description

Part Number

Quantity
Required

Notes

225/70R19.5 LR-H CROSSTRAC
HA3 CONTINENTAL

N/A

2

Steer tires. Order only if the issue with the
original tire supplier cannot be corrected

225/70R19.5 LR-G HDR
CONTINENTAL

N/A

4

Drive tires. Order only if the issue with the
original tire supplier cannot be corrected

DIAGNOSTIC and REPAIR STEP(s)
Step Action
DIAGNOSTIC:

Decision
Yes: Proceed to Step 2.

Determine the vehicle has an objectionable wheel end vibration per IK0600020

1

No: If the vehicle has a higher
frequency vibration/noise equating to an
engine/driveline system, please create a
Tech Services case file for assistance.

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IK1700018 - CV Vibration - wheels

Step Action
DIAGNOSTIC & REPAIR:
Determine if tire and wheel assemblies have damage, excessive mud, snow
pack, or debris affecting wheel balance, improper tire wear, improper tire
seating, or runout with a visual inspection.
2

Step Action
DIAGNOSTIC & REPAIR:

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Decision
Yes: Clean up, repair or replace worn,
damaged, or out of specification
components. Adjust tire pressure to 90
PSI. After repairs are complete, retest
for symptom.
No: Proceed to step 3

Decision
Yes: Proceed with Step 4

Has the vibration existed since the truck was new?

No: Check prior repair history that could
affect wheel end and inspect
for service issues - Retest for symptom.
If no issues found and unit still has the
same vibration, proceed with Step 4.

3

Step Action
DIAGNOSTIC & REPAIR:

Decision
Yes: Go to Step 5

Use Hunter Engineering locator tool http://www.hunter.com/heavyduty/forcematch-hd/search to see if a ForceMatch HD wheel balancer is in your
immediate area.
PRINT Tire Shop Worksheet. Mark the peak point of runout on each tire so it
can be properly oriented when installed on the truck

4

If a Hunter balancer is not in the immediate area, at a commercial tire shop,
have all wheels rebalanced and check radial runout with a dial indicator on the
balance machine. Dismount tire as needed and rotate on the rim to reduce
runout as needed.

No: Release unit.

Match Mounting Instructions
Mark the peak point of runout on each tire so it can be properly oriented when
installed on the truck.
Retest for symptom. Does the unit still exhibit the same vibration?

Step Action

Decision

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IK1700018 - CV Vibration - wheels

DIAGNOSTIC & REPAIR:

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Yes: Go to step 6

No: Inspect tire and replace if
damaged. If tire is not damaged,
Measure distance between tire guide rib and wheel edge in 4 locations 90 degrees have a trained / qualified tire
technician dismount tire, lube bead
apart.
and remount tire to wheel. After
repairs are complete, remeasure
• On steer tires, measure both the front and back of the tire.
runout and retest for symptom
• On dual tires, do not measure guide ribs located between dual wheels.
Determine if tire is properly seated to wheel

Are measurements on each side within 1/16” (1.59 mm) of each other?

5

Step Action
6

DIAGNOSTIC & REPAIR:
Determine if wheel is properly mounted to hub.
1. Determine if wheel is flush against hub mating surface.
2. Inspect hub pilot pads for damage such as bending or gouging.

Decision
Yes: Go to step 7
No: Remove wheel from hub.
Remove corrosion / debris from
between hub and wheel. Properly
mount wheel to hub. After repairs
are complete, retest for symptom.

3. Check lug nuts torque. See appropriate Operation and Maintenance Manual
for lug nut torque information.
Are the wheels properly mounted?

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Step Action
DIAGNOSTIC & REPAIR:
Determine if tire tread depth has excessive variation. Measure tire tread depth
in 4 locations 90 degrees apart. Measure at center of tread. Is tread depth
variation 3/32 inch or more?

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Decision
Yes: Replace affected tires. After
repairs are complete, retest for
symptom.

7
No: Go to Step 8.

Step Action
8

DIAGNOSTIC & REPAIR:
Determine if hub pilot pad to wheel clearance is contributing to a radial runout.
1. Using a feeler gauge, measure clearance between hub pilot pads and
wheel.
2. Determine location of greatest hub wheel clearance.
Is greatest point of hub wheel clearance approximately in line with the measured
tire / wheel assembly high spot?

Decision
Yes: Rotate tire / wheel assembly
high spot to the top (12 o’clock)
position. Loosen wheel lug nuts and
allow gravity to shift wheel onto hub
pilot pads. Tighten wheel lug nuts.
Measure tire / wheel assembly runout
to be within 0.040 in (1.016 mm).
Retest for symptom
No: Go to Step 9.

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IK1700018 - CV Vibration - wheels

Step Action

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Decision

DIAGNOSTIC & REPAIR:

Yes: Due to the size of the CV tires, a
tire shop with a Hunter Road Force®
Determine if tire / wheel assembly runout can be reduced by match mounting.
Elite GSP9700 machine may not have
When installing rear dual wheels: Install high spot of each tire / wheel assembly the appropriate adapters to radial force
180 degrees from each other Does the unit still exhibit the same vibration?
balance these tires. Please contact the
tire manufacturer for support or create a
tech services case file for further
support. Consider installing the tires in
the service parts information of this
article.
9

No: Release the unit.

WARRANTY INFORMATION
Tires are not eligible for warranty reimbursement. If the issue with the original tire supplier cannot be corrected, contact your
Navistar CSE for possible goodwill assistance.

Standard Repair Time(s):
Refer to the SRT Manual for Repair Times

OTHER RESOURCES
Master Service Information Site

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Copyright © 2019 Navistar, Inc.

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