FSB-284-047

SB-10054023-1831
Field Service Bulletin
Trucks
Volvo Trucks North America
Greensboro, NC USA
Date
This service bulletin replaces FSB 284-047 dated 9.2013.
10.13
Group
No.
Release
284 047 02
Page
1(10)
Oil Level Sensor Harness Wire Splice
VAH, VHD, VN, VT
FSB 284-047, Oil Level Sensor Harness Wire Splice
(October 2013)
Some VOLVO vehicles built between January 2004 and September 19, 2013 may experience
an oil level sensor failure that leads to oil contamination into the engine wire harness. A new
anti-wicking pigtail splice kit, part number 85137983, is now available. Follow the procedure
below if wicking is observed. Chassis with build date September 20, 2013 and later have the
new solid pin connector and no action is required. The oil level sensor part number 21521353
with hollow pin type connector is now replaced with the new solid pin type connector oil level
sensor part number 22022794. The new solid pin connector does not allow oil to wick into the
engine harness.
Note: It is not necessary to replace the entire engine harness for oil contamination.
W2085817
Old Style Hollow Pin Connector
Service personnel: Please circulate, read and initial
Service
Manager
Warranty
Administrator
PV729-FSB284-047_V
Workshop
Foreman
Service Technicians
USA62444
Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
W2085818
New Style Solid Pin Connector
If a sensor is being replaced for electrical faults and oil has not wicked into the harness,
REPLACE THE SENSOR ONLY.
If a sensor has failed AND is wicking oil into the engine harness, REPLACE THE SENSOR
AND INSTALL THE PIGTAIL AS INSTRUCTED IN THIS BULLETIN.
If the engine harness is being replaced for other reasons and the sensor connector is the
older hollow pin type, REPLACE THE SENSOR ONLY. The new harness will NOT require the
pigtail kit.
Note: The only purpose for the pigtail harness installation is to prevent oil in the harness from
migrating back to the new sensor in the event oil has previously wicked into the harness
giving the false indication the sensor has failed.
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Required Parts
Splice kit part number 85137983. The kit contains:
Quantity
Part Number
Description
1
3093296
Shrink Tubing
2
948211
Cable Tie
4
6781769
Connector (Splice)
1
22210355
Wire Harness
Group
No.
Release
284
047
02
Page
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
You must read and understand the precautions and guidelines in Service Information,
Function Group 30, "General Safety Practices, Electrical and Electronics" before
performing this procedure. If you are not properly trained and certified in this procedure,
ask your supervisor for training before you perform it.
Repair
1 Secure the vehicle for service by parking it on a flat level surface, applying the parking
brake, chocking the rear wheel, and placing the transmission in neutral.
2 Disconnect all cables from the negative (ground) battery terminals to prevent personal
injury from electrical shock and prevent damage to electrical components.
3 Raise hood or raise cab.
4 If necessary, remove driver side inner fender.
5 If necessary, remove the power steering reservoir and oil fill tube fasteners, position out of
the way and remove the power steering reservoir frame mounted bracket.
6 Clip applicable cable ties and remove P-clamps securing the oil level sensor harness leg.
Pull the leg up, over the frame rail, to provide best access to the length of the harness.
7 Cut the appropriate length of the contaminated harness leg that will still allow for proper
working room. Make sure the pigtail kit wire length is sufficient to reach the contaminated
harness.
Note: The length of harness to be removed will depend on the vehicle.
Page
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
8 Remove the oil level sensor harness connector backshell and slide the loom away from
the connector. Do not damage the backshell nor the loom, they will be reused.
W2083442
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
9 Remove the contaminated harness connector and wires from the loom. Take the splice kit
connector and place it beside the connector from the harness.
W2083444
Page
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
10 Stretch the wires together and clip one wire from the splice kit to the same length as the
wires on the contaminated harness. Cut the rest of the wires in the splice kit in a staggered
pattern at increasing lengths. The length from the shortest wire to the longest wire should
be approximately 75 mm (3 in). Install the previously removed loom over the splice kit
connector.
W3085820
A.
Length of cut harness plus 75 mm (3 in) to
allow the splice stagger
B.
Length of initial harness cut
Page
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
11 Slide a section of heat shrink tubing over the engine harness leg or the splice kit end loom
and away from the splice area.
W2083445
12 Cut the loom lengthwise approximately 50 mm (2 in) in each direction from the splice area.
W2083443
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
13 Align the ends of the shortest wire on the splice kit and its matching color wire on the
engine harness and install a butt connector. Align the ends of the next shortest wire on the
splice kit and its corresponding wire on the engine harness. Trim the length of the engine
harness wire to maintain the staggered pattern and install a butt connector. Repeat the
process for the remaining wires.
W2083446
14 Using a heat gun, shrink and seal each butt connector. Return the wires inside the loom
sections. Slide the previously installed heat shrink tubing over the splice area and cut
looms. Using the heat gun, shrink the tubing to seal the repair. Install the connector
backshell.
15 Route the oil level sensor harness back to its original location. Install necessary cable ties
and P-clamps. Connect the sensor.
Note: If oil has wicked to the engine control module connectors, clean the connectors
thoroughly with electronic cleaner and dry with compressed air.
16 If removed, install the power steering reservoir frame mounted bracket. Install the power
steering reservoir and oil fill tube fasteners.
17 If removed, install driver side inner fender.
18 Install all the previously removed cables to the negative (ground) battery terminals.
19 Start the engine and check for proper operation.
20 Close hood or lower cab.
21 Use Tech Tool to clear any diagnostic trouble codes (DTC).
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Volvo Trucks North America
Field Service Bulletin
Date
10.13
Group
No.
Release
284
047
02
Page
10(10)
Reimbursement
This repair may be eligible for reimbursement if a product failure was experienced within time and mileage limits of
the applicable Warranty coverage. Reimbursement is obtained via the normal claim handling process.
Claim Type (used only when uploading from the Dealer Bus. Sys.)
W
Labor Code
Primary Labor Code
28440-2-00
VN, VT — 0.7 hrs.
VAH, VHD — 1.4 hrs.
Causal Part
21521353
VOLVO Trucks North America reserves the right to make any changes in design or to make
additions to or upon its products without incurring any obligations to install the same on
vehicles previously built.