2012 Peterbilt 320 TSBs
23 Technical Service Bulletins across 8 categories
Categories
Electrical
9 bulletinsInformation Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the...
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appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (SOC) exhaust and built from...
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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.
Information Only Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead...
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to water intrusion and corrosion in some vehicles.
Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed, which may lead...
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to sensor corrosion.
Fix as Fail: Peterbilt has initiated an improvement to the Model 320/520 power window module.
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A vapor barrier will be installed over the module to prevent moisture.
Information Only - Quick Reference Guide for Electric harness damage repairs.
Fix-As-Fail: Repair for horizontal exhaust diffuser configurations with broken brackets or cracked diffuser.
PETERBILT: AN ACTIVE FAULT CODE 3911, AMMONIA SENSOR COMMUNICATION, MAY BE DISPLAYED AND A REPAIR STRATEGY IS BEING PROVIDED.
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MODEL 320. *PE
Other
3 bulletins"Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes.
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2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
Information only: Some model 320 and 520 vehicles built before 3/11/2019 may experience loss or loosening of doghouse insulation.
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Reference the procedure in the attachment section to properly remove and replace the insulation.
Fix-As-Fail: Two separate causes have been identified as root cause of intermittent low coolant indicator illumination.
Software & Calibration
3 bulletinsInformation Only - Vehicles built with NAMUX software from 2013 to present may experience accuracy issues with the tachometer.
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The issue can be temporarily resolved using any one of the included procedures.
Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error.
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Notice to dealers to replace this version with older software version until Bendix introduces new version.
Information - Recommended Practices for Updating ESA Software
Body & Paint
2 bulletinsInformation Only Windshield washer pumps have a high No Trouble Found rate.
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Washer pumps may fail to spray due to a clogged filter.
Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
Pre-Delivery & Maintenance
2 bulletinsInformation only: Hendrickson Softek front axle maintenance intervals and requirements.
Information Only This bulletin provides information about the California Air Resources Board (CARB) Periodic Smoke...
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Inspection Program (PSIP) and Heavy Duty Vehicle Inspection Program (HDVIP).
HVAC & Climate
2 bulletinsInformation Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...
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A/C compressor.
PETERBILT: TECHNICAL INFORMATION IS PROVIDED FOR CERTAIN TRUCKS OPERATING IN HIGH AMBIENT TEMPERATURE (100 F) AND IS...
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IDLING OR DURING STOP AND GO DRIVING, MAY CAUSE THE HIGH SIDE PRESSURE SWITCH TO SHUT OFF THE COMPRESSOR. *PE
Brakes
1 bulletinSafety Recall: Vehicles fail to confirm with FMVSS/CMVSS No 108 Table 1-a requirements which requires 2 red stop lamps.
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Vehicles were equipped with additional amber stop lamps which may illuminate when the brake is applied, and may confuse other drivers. Resolution is to remove the amber stop lamps and associated wiring.
Suspension
1 bulletinPETERBILT: INFORMATION REGARDING GAP AND PROPER TORQUE ALLOWED ON DEF TANK STRAPS.
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TANK STRAPS HAVE A SPRING TO ENSURE THEY REMAIN TIGHT DURING EXPANSION AND CONTRACTION OF DEF TANK. STRAPS MAY LOOK LOOSE BUT ACTUALLY ARE NOT UNLESS GAP IS GREATER THAN 1/2 INCH BETWEEN WASHER AND STRAP. *PE