Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
32-025
Service Bulletin/Repair Instructions
Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting issues. A new Starter Troubleshooting Guide has been created to provide a comprehensive list of starting system checks, which should reduce unnecessary starter replacements and associated warranty claims. Engine starting system warranty claims now require a completed Starter Checklist, a Battery Pack Midtronics Report, and a Cable Drop Midtronics Report. Claims filed without these documents may be denied.
7-700
Warranty Program/Extension
7/700 Service Agreement - Letter Only.
E304
Service Bulletin/Repair Instructions
Emissions Recall Certain vehicles with PACCAR MX-11 and MX-13 EMY2016 engines with less than 300,000 miles (482,803 km) have been shown, in testing, to exceed regulatory limits for NOx and N2O emissions. This bulletin now applies to both Canadian and U.S. registered vehicles. Software is now available to remedy this emissions non-compliance.
E279
Service Bulletin/Repair Instructions
An engine software defect exists in certain vehicles equipped with EMY17 MX-13 and MX-11 engines that pertains to timer action and count calibrations for a time-based diagnostic. This diagnostic action checks fuel pressure and has no negative impact on tailpipe emissions. This soft ware may incorrectly set DTC â P1092.
45-064
Service Bulletin/Repair Instructions
Info Only - PACCAR is introducing Over-the-Air (OTA) software updates for engine MY17 and newer chassis equipped with Cummins X15, X12, ISX12, ISX12N, L9N, PX-7, and PX-9 engines The technology will leverage the existing Remote Diagnostic cs hardware to deliver secure software updates remotely. This will reduce downtime and save on maintenance costs for eligible vehicles.
13-060
Service Bulletin/Repair Instructions
The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
51-013
Service Bulletin/Repair Instructions
Due to major data carriers phasing out 3G networks, chassis currently utilizing first generation Peoplenet Mobile Gateway (PMG001) will experience severe 3G service degradation as early as January of 2022. Chassis currently utilizing 3G antennas as a primary antenna may experience this degradation.
43-071
Service Bulletin/Repair Instructions
Fix-As-Fail â Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
E271
Service Bulletin/Repair Instructions
An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD system software related issues.
02-160
Service Bulletin/Repair Instructions
Information Only â Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
13-054
Service Bulletin/Repair Instructions
Fix-As-Fail - Bendix New-Gen Lightweight Steer Axle Drum Brake Spider Cracking
43-067
Service Bulletin/Repair Instructions
Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (âSOCâ) exhaust and built from 03/6/2006 to 1/20/2020, the clamps that secure the SOC exhaust stacks may not be tightened properly. This may allow the exhaust stack to rotate and contact the cab or sleeper.
32-015
Service Bulletin/Repair Instructions
Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
11-001
Service Bulletin/Repair Instructions
Information only: Hendrickson Softek front axle maintenance intervals and requirements.
43-066
Service Bulletin/Repair Instructions
DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank part number M86-6221-003**(TANK-DEF MEDIUM ASSY) and M86-6222-003**(TANK-DEF LARGE, ASSY). Resolution is to resolve the vibration on the tank cover by adding bottom tank washers.
20PBB
Service Bulletin/Repair Instructions
Safety Recall: Peterbilt has decided that certain Model 320 and 520 trucks built between 2/20/2015 and 7/16/2019 may have been built without a quick release valve. The absence of this valve could affect rear brake timing on certain vehicles equipped with a tri-drive or liftable tag axle and Dual Seated or Right Hand Stand-Up steering configurations. Resolutoin is to inspect for a quick release valve installed, and if there is not one, to install a quick release valve.
32-016
Service Bulletin/Repair Instructions
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-085
Service Bulletin/Repair Instructions
Information Only â Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
03-071
Service Bulletin/Repair Instructions
Information Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer. The issue can be temporarily resolved using any one of the included procedures.
02-151
Service Bulletin/Repair Instructions
Fix as Fail: Peterbilt has initiated an improvement to the Model 320/520 power window module. A vapor barrier will be installed over the module to prevent moisture.
02-153
Service Bulletin/Repair Instructions
Information only: Some model 320 and 520 vehicles built before 3/11/2019 may experience loss or loosening of doghouse insulation. Reference the procedure in the attachment section to properly remove and replace the insulation.
01-075
Service Bulletin/Repair Instructions
Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB43-062
Service Bulletin/Repair Instructions
Information Only â This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
42-056
Service Bulletin/Repair Instructions
Fix-As-Fail -ÃÂ Composite fittings used in the cooling system may crack, resulting in coolant leaks. Brass fittings are available to replace the composite fittings.
42-058
Service Bulletin/Repair Instructions
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
03-065
Service Bulletin/Repair Instructions
Fix as Fail: Vehicles built with NAMUX software part number P30-1032-xxx and not updated require an ESA update.
34-066
Service Bulletin/Repair Instructions
Information Only - Quick Reference Guide for Electric harness damage repairs.
34-077
Service Bulletin/Repair Instructions
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
13-049
Service Bulletin/Repair Instructions
Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version.
03-064
Service Bulletin/Repair Instructions
Information - Recommended Practices for Updating ESA Software
02-18
Service Bulletin/Repair Instructions
Fix-As-Fail: Water Intrusion on Model 320/520 Window Regulators
7-17
Service Bulletin/Repair Instructions
Fix-As-Fail ? There is an updated plug to fix leaking steer axle hubcaps.
15-16
Service Bulletin/Repair Instructions
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
FRN11151CustLtr
Service Bulletin/Repair Instructions
Sample Customer Letter - Field Repair 11151: Steering Column Mounting Bolts Loose.
FRN216-1Custltr
Service Bulletin/Repair Instructions
Sample Customer Letter - 216-1 Dana Intermediate Steering Shaft Unseated or Missing C-clip.