TJ20803 Service Bulletin/Repair Instructions

VOLVO CAR
SERVICE AND PARTS BUSINESS
Technical Journal

TITLE:
Test schedule for vehicle speed dependent vibrations at highway speeds

REF NO:
ISSUING DEPARTMENT:
CAR MARKET:
TJ 20803.13.0
Technical Service
United States and Canada
PARTNER:
ISSUE DATE:
STATUS DATE:
3 US 7510 Volvo Car USA
2017-09-12
2017-09-26
FUNC GROUP:
FUNC DESC:
2185
Engine undershield
Page 1 of 10
“Right first time in Time”

Attachment

File Name

T9379EN01.docx

instruction SPA vibrations.pdf
File Size

0.0390 MB

0.2578 MB
Vehicle Type

Type
Eng
Eng

Desc
Sales
Body
Gear
1XX

2XX

3XX

5XX
Steer
Model Year

2007-9999

2007-9999

2007-9999

2007-9999
Plant
Chassis range

0010000-9999999
Struc Week

Range

0-0

0-0

0-0

200620-999999
CSC Customer Symptom Codes

Code

C4

F3

F6

8N

F1

F2

ZE

XB

WX
Description

Complete vehicle/Unusual noise/While driving

Complete vehicle/Unusual noise/During acceleration

Complete vehicle/Unusual noise/During deceleration

Driving/Unusual noise/Unsure when/at all times

Driving/Unusual noise/At engine shut off

Driving/Unusual noise/During acceleration

Idling/Unusual noise

Exhaust system/Rattle/rumble

Engine cooling fan (FC)/Unusual noise

Produced in the USA and available as an electronic document. Hard copy documents are printed in USA on recycled paper containing

a minimum of 50% wastepaper and 10% post-consumer waste.

© 2017 VOLVO CAR USA, LLC
Technical Journal 20803.13.0

Code

F4

C3

F5

C6

D2

WV

WY

X1

H3

H4

X8

E7

WZ

8J

1M

1N

V6

V7

NY

V9

8A

W2

V2

W3

X7

V1
Description

Clutch/Unusual noise/Noise from engine compartment

Automatic transmission/Unusual noise

Gear selector/Unusual noise

Manual transmission/Unusual noise

Front/rear axle/Unusual noise

Suspension/Clicking/clonking noise/At start/stop

Suspension/Clicking/clonking noise/Unsure when/at all times

Suspension/Unusual noise

Steering wheel/Squeak/rattle/Steering column/wheel

Steering/Unusual noise/Unsure when/at all times

Steering/Unusual noise/At full turn

Suspension/Unusual noise

Suspension/Clicking/clonking noise

Shock absorption/Unusual noise

Wheels, tires, hubs/Unusual noise/Front

Wheels, tires, hubs/Unusual noise/Rear

Complete vehicle/Vibration/When driving below 45 MPH

Complete vehicle/Vibration/When driving above 45 MPH

Automatic transmission/Vibration

Gear selector/Vibration

Manual transmission/Vibration

Front/rear axle/Vibration/shake

Steering wheel/Vibration/shimmy/When driving above 45 mph

Steering wheel/Vibration/shimmy/When driving below 45 mph

Steering wheel/Vibration/shimmy/At idle

Tires/Vibration/out of round
VST Operation Number

DTC Diagnostic Trouble Codes

Rows beginning with * are modified

Note! If using a printed copy of this Technical Journal, first check for the latest online version.

Text
Page 2 of 10
2017-09-26
Technical Journal 20803.13.0

DESCRIPTION:

* Updated attachment “Fault tracing schedule”

In case of complain of Noise, Vibration or Harshness, NVH, and you need help from CMQ, some

“tools” have been created to help you to do a better and more precise fault tracing.

1. Question form to fill in and attach along with a vehicle report for faster support.

2. Guideline to help you to sort out NVH related problems.

SERVICE:

N/A

VEHICLE REPORT:

Yes, together with a complete filled in attachment, included in this journal.

The attachment MUST be in English when sending in it to CMQ.

Use always function group 2185.
To view TJ attachment continue to next page. This TJ has two attachments.
2017-09-26
Page 3 of 10
Volvo Car Customer Service

Title

Action
Fault-tracing schedule NVH

Test protocol
Issue

1
Date

2015-02
TJ Instruction T9379

Page:

Operation number:
1 (3)
Cause

First issue
Affected vehicles

Year

All
Model

All
Engine
Transmission
Steering
Chassis number
Special tools

Description
Tool number
CHASSIS-EAR
9814108
Relevant vehicle

VIN
Model
Year
Engine
Transmission
Steering
TJ Instruction T9379
Page 2 (3)
1.
Note! ALWAYS start by inflating the tyres to comfort pressure.

Note! ALWAYS test drive with the customer and allow the customer to describe the interference.

Note! ALWAYS record the noise and include in the report.
2.
Questions to be filled in with the customer

1: When was the interference noticed for the first time?

Odometer:
_________ KM
Odometer:
_________ Miles
2: What type of interference?
☐ Noise

☐ Vibration
2:2 Experienced in?
☐

☐

☐

☐

☐
The steering wheel

Floor

Seats: Front

Seats: Rear

Seats: Third row (XC90)
3: When does the interference occur?

☐

☐

☐

☐

☐

☐

☐
Stationary vehicle during "revving engine"

uphill

Downhill

Whilst driving

Rolling vehicle

Acceleration

Deceleration
Speed:________
km/h
Speed:________
mph
Engine speed:________ Rpm
Which gear(s)?______________

☐ Recurring
☐ Sporadic
4: Weather conditions when the interference occurs?

Outdoor temperature:_______°C

☐ Dry road

☐ Wet road

5: What type of road surface?

________________________________________

6: Vehicle status?
☐ Cold

☐ Hot
TJ Instruction T9379
Page 3 (3)
3.
Further questions

7: Engine temperature?
_____________°C
8: If there is a sound file, where is it recorded?

☐ In the passenger compartment, front seat

☐ In the passenger compartment, rear seat

☐ Under the vehicle

☐ In the engine compartment

Describe at what second the noise is heard.________Sec?

9: Has Chassis-ear, 9814108, been used for fault tracing?

☐ Yes

☐ No

10: What type of recording equipment has been used?
_____________________
11: Space for further comments.

_________________________________________________________________________________________

_________________________________________________________________________________________
Volvo Car Customer Service
TJ Instruction T20803
Title

Action
Fault tracing schedule regarding vibrations at highway speeds.

Fault tracing
Issue

1
Date

2015-03
Page:

Operation number:
1 (4)
Cause

Update
Affected vehicles

Year

All
Model

2015-
Engine
Transmission

AWD
Steering
Chassis number
TJ Instruction T20803
Page 2 (4)
Test schedule for vehicle vibrations at highway speeds

1.
If none of the tests below help, submit a report to Technical helpdesk.
2.
To verify whether the vibrations are vehicle speed dependent or engine speed dependent,

follow the fault tracing below.

1. Start by checking in which gear(s) and at what engine speed range the customer

experiences the problem. Road surface and surrounding temperature are of

importance.

2. Test in another gear at the same vehicle speed.

Same engine speed at different gears → Engine speed related problem.

Same vehicle speed at different gears → Vehicle speed related problem.
TJ Instruction T20803
Page 3 (4)
Test schedule for vehicle speed dependent vibrations at highway speeds.
Following test procedure is very important to carry out in proper order. First analyse the wheel

contributions and then the AWD system contribution (if included in car spec.).
1, Wheel generated vibrations 43- 93 Mph.

Always drive the car at least 15 minutes before evaluation to avoid “flat spot” contribution.

Always test drive with correct tyres and genuine Volvo rims at recommended tire pressure

3.
Root cause analysis of the wheels

1. Check the status of the wheels regarding wear, damage and dirt.

2. Rebalance the wheels.

3. Test drive vehicle with 1,5bar in tire pressure. If vibration level decreases root cause

most probably is non uniform wheels. Uniformity contribution decreases with lower tyre

pressure. Note, only for testing!

4. Test drive (if possible) a vehicle of the same specification. If that vehicle does not show

same behaviour, transfer the wheels to the problem car.

Important! Install the wheels in the same wheel positions. Test drive the car with the

“transferred” wheels at the same driving conditions.

If none of the above actions lower the vibration levels in vehicle continue with root cause

analysis of the AWD system or drive shafts (if no AWD spec.).
2, Front drive shaft vibrations 37-78Mph.

Remove DEM fuse and judge if the vibrations increases / decreases at moderate acceleration at

3rd gear. If the vibration levels are increased the root cause most probably is imbalance of front

drive shafts. Replace both drive shafts and RHS Bracket (31401993) and do a new test drive.
TJ Instruction T20803
Page 4 (4)
3, AWD generated vibrations

If the wheel and drive shafts contribution to the vibration levels are negligible, next step is a fault

tracing of the

AWD system (often worst at 71-77Mph). Test drive after each step.
Root cause analysis of AWD system

If the wheel contributions of the vibration levels are negligible, continue with fault tracing of the

AWD system (often vibration peak at 71-77Mph). Test drive after each step.

1.

2.

3.

4.

5.
Remove the propeller shaft

Remove DEM fuse, eliminates contribution from AOC pump

Order a new companion flange (31259419) and mount (without torsional damper)

Replace AOC

Replace final gear
Torsional damper
Companion flange

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