NHTSA ID Number: 10168708
Manufacturer Communication Number: 01-071
TSB/Document Date: 2019-12-04
Summary
Fix as Fail: Certain Models 579 and 567 vehicles manufactured with a Cummins
ISX-15 engine built before 11/05/2018 the evaporator core may crack. An improved suction line has been released to alleviate the stress that may cause a cracked evaporator core
Page 1 of 3
Service Bulletin
01-071
Section
01 - HVAC
Description
The Evaporator Core May Crack in Models 579/567 Vehicles Built With a Cummins ISX-15 Engine.
Release Date
11/22/2019
Introduction
Peterbilt has determined in certain Models 579 and 567 vehicles manufactured with a Cummins ISX-15
engine built before 11/05/2018 the evaporator core may crack. An improved suction line has been
released to alleviate the stress that may cause a cracked evaporator core.
Resolution
Fix As Fail
If a customer comes into your dealership and demonstrates the condition above, install the updated
suction line(s) in addition to replacing the evaporator core. See the procedure below for updated routing
of the updated suction line.
Non-related Air Conditioning system repairs are not covered by this bulletin.
Warranty
Through standard warranty Peterbilt will pay for parts at dealer net plus applicable mark up and labor:
2.4 hours labor to replace the evaporator suction line and evaporator core on Day-cab or sleeper
configuration and file a long form claim and reference 01-071 in the “CCC” field.
If the chassis requires either the F50-1780-200 or the F50-1780-100 line, file a long form claim
for the line.
File a long for claim for additional Air Conditioning repairs associated with this bulletin.
Take Off Parts Disposition: Destroy take-off parts 30 days after claim is paid.
https://eportal.paccar.com/dealer/uspb/en/service/vehiclebulletins/vehiclefieldservice/Page... 12/2/2019
Page 2 of 3
For Field...
Enter...
Failure Location
001-001-147
Failure Type
700
Claim Type
N
Campaign Number
01071
SRT 001-026
A/C Freon Recharging, Flush, and
Leak Test (cab and/or sleeper) 1.0
hrs.
SRT 001-061
AC Refrigerant Lines (any) - R &
R Does not include recharge 0.5
hrs.
SRT 001-404
Cab HVAC Evaporator Core
Cover 0.4 hrs.
SRT 001-405
Cab HVAC Evaporator w/TXV
(Does not include refrigerant
evacuation and recharge) 0.5 hrs.
Parts
Parts are available from PACCAR Parts.
Quantity
1*
Part Number
F50-2188-140
1*
F50-2188-141
1*
1*
2
1
Up to 5oz
F50-2039-100
F50-2039-200
22-01150-012
W2078001
Sanden SP-15 PAG
Refrigerant oil
R134A
52 oz for
Day Cab
Description
Suction line (replaces F50-1870-0450 or F501664-0482) use for 2° engines only
Suction line (replaces F50-1870-0450 or F501664-0482) use for 4° engines only
Replaces F50-1780-100 on Sleeper trucks
Replaces F50-1780-200 on Day-cab trucks
P-clamps, cushioned
Evaporator Core
Source locally
Source locally
64 oz for
Sleeper
* Refer to the part description to determine the part applicability for a specific vehicle.
Procedure
1.
Remove refrigerant from the system and check for leaks.
If leaks are coming from components other than the evaporator core and/or lines
included in this bulletin, and the vehicle is no longer covered on warranty,
repair/replacement of those components is not covered by this bulletin.
2.
Install the appropriate new lines for the chassis.
https://eportal.paccar.com/dealer/uspb/en/service/vehiclebulletins/vehiclefieldservice/Page... 12/2/2019
01-071 HVAC Evap Core
Page 3 of 3
The intermediate line located between the suction line and the evaporator core MUST
be replaced if the old style (F50-1780) intermediate line is present.
The updated suction line (F50-2188) is secured to the plenum with two p-clamps and
the existing bolts. Refer to the routing diagram below for updated routing.
3.
Recharge the system and confirm correct functionality.
Line routing diagram
Authored by: DKH
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TSB/Document ID: 01-071
Replacement Service Bulletin Number:
MFR Communication Date: 2019-11-22
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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