1999 Peterbilt 520 TSBs

7 Technical Service Bulletins across 5 categories

Electrical

3 bulletins

10191380

The current chassis harness connector contains a wire that is no longer necessary with the latest electrical architecture.

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The presence of the wire could result in a false fault code.

10177021

Information 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.

10173205

Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.

1 bulletin

10188550

Information 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.

1 bulletin

10176033

Information only: Hendrickson Softek front axle maintenance intervals and requirements.

1 bulletin

10168707

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.

1 bulletin

10168703

Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the...

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A/C compressor.