2007 Peterbilt 320 problems

What is wrong

PACCAR Incorporated (PACCAR) is recalling certain 1990-2020 Peterbilt 320 and 520 vehicles built with specific amber rear turn signals. The turn signals may also light up with the stop/tail lights when the brakes are applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk

Rear Turn signals that illuminate at the same time as the brake lights may create confusion and impair the effectiveness of the brake lights, increasing the risk of a crash.

Remedy

PACCAR will notify owners, and for trucks with rear amber lights, dealers will add a jumper harness between the chassis electrical harness and amber tail lights, free of charge. The recall began August 1, 2019. Owners may contact PACCAR customer service at 1‑940‑591‑4220. PACCAR's number for this recall is 19PBC.

Recall number 19V452000 · Recall details

What is wrong

Certain trucks equipped with bendix sr-7 spring brake modulating valves. The internal rubber check valve may leak causing a delay in the application of the spring brakes to park the vehicle after the operator pulls the dash valve button.

Risk

This could delay or failure in applying the parking brakes potentially resulting in a vehicle roll away.

Remedy

Dealers will install a check valve repair kit for the affected sr-7 spring brake modulating valve free of charge. The recall began on august 22, 2007. Owners may contact peterbilt at 940‑591‑4201.

Recall number 07V276000 · Recall details

What is wrong

On certain trucks, the axle housings may have been manufactured with steel that was out of specification which could result in a fatigue failure over time.

Risk

If a fatigue failure occurs and is left unattended, the axle may lock up or the end of the axle could come off, which may result in a vehicle crash.

Remedy

Dealers will inspect and replace the axles free of charge. The recall began on may 9, 2007. Owners may contact kenworth at 425‑828‑5440 and peterbilt at 1‑940‑591‑4196.

Recall number 07V132000 · Recall details

SummaryOn July 13, 2010, the Office of Defects Investigations (ODI) opened an investigation on model year (MY) 2007-2009 Peterbilt tractors equipped with the (SPL170XL extended lube inter-axle driveline).ODI opened this investigation based on one Vehicle Owners Questionnaire (VOQ) and certain Peterbilt field reports.During the course of the investigation, ODI reviewed PACCAR's IR (October 22, 2010) response with associated data related to Warranty and complaint information, mined field data, interviewed customers and visited local dealers within the Washington Metropolitan area.PACCARconducted testing regarding torsional loading and identified various causative factors contributed to this safety defect finding.The Defect is a consequence of the bearing surfaces of the SPL170XL extended lube universal joint that attaches the inter-axle driveline to the drive axle becoming prematurely worn due to a breakdown of lubrication and/or excessive heat.Prematurely worn bearing surfaces may result in the u-joint becoming loose and/or binding.This condition may result in universal joint failure, allowing the inter-axle driveline to detach from the axle, which may cause the drive shaft to separate from the vehicle, increasing the risk of personal injury or property damage hazard.ODI learned that the affected population of the alleged defect extended to peer models within PACCAR.In summary, the following vehicles are being recalled: MY 2007 and 2008 Kenworth trucks, models T600, T660, T2000, T800 and W900 and MY 2007/2008 Peterbilt trucks, models357, 378, 379, 385, 386, 387, 388, and 389 allequipped with extended lube inter-axle drivelines manufactured by Dana Corporation.The recall affects vehicles manufactured between February 2, 2006 and April 30, 2007.At this time PACCAR has not yet identified a fix for the inner-axle safety defect and is currently conducting testing with the intent to provide a solution to the failure.ODI will monitor the development of PACCARS testing and ensure a timely repair for the consumer.This investigation is closed.

PE10029

PACCAR is conducting an Owner Notification Program (ONP) for select vehicles within the subject and peer populations.The ONP are attached to the closing report and can be found in the federal safety agency Technical Service Bulletin (TSB) database. (TSB: 10033585, 10033584)See Closing report for investigation details.

EA09008