1999 Isuzu NPR technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• May 8, 2023 Service bulletinThis bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The...
• Aug 30, 2022 Service bulletinIsuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to...
• Jul 20, 2022 Service bulletinThe following is a list of the Isuzu-recommended Threebond product part numbers identified in the various...
• Jul 20, 2022 Service bulletinThe Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic...
• Aug 1, 2014 Service bulletinIsuzu: information regarding corrosion inhibitor improvement that changes color of coolant to a dark color...
• Aug 1, 2007 Service bulletinUsage of E85 fuels in gm vehicles
• Oct 1, 2006 Service bulletinReplacement of output flange nut when servicing transmission
• Feb 1, 2006 Service bulletinVehicle no-start in extreme cold
• Apr 1, 2004 Service bulletinThe exhaust valve stem may become deformed which could lead to valve train clatter noise
• Mar 1, 2004 Service bulletinAisin automatic transmission fluid service reminder
• Feb 1, 2004 Service bulletinAvailability of new fuel injection pump oil supply pipe for replacement after removal
• Jan 1, 2004 Service bulletinSupplement to 03-06-04-002 4HEI-TC diesel engine - cold weather no start
• Dec 1, 2003 Service bulletinThrottle position sensor replacement procedure
• Nov 1, 2003 Service bulletinAutomatic transmission oil cooler flushing on certain medium duty tilt cab models and commercial models...
• Nov 1, 2003 Service bulletinMi-tics injection pump exchange program/warranty guidelines effective october 1, 2003
• Oct 1, 2003 Service bulletinEngine oil leak at vacuum pump oil supply pipe
• Oct 1, 2003 Service bulletinApproved aisin automatic transmission on-vehicle repairs
• Sep 1, 2003 Service bulletinProper positioning of fuel injection pump primer handle after use
• Jul 1, 2003 Service bulletinHarsh shifting, delayed upshifts with possible check trans lamp illuminated, possible diagnostic trouble...
• May 1, 2003 Service bulletinRelease of new tools for service: j 37228 - oil pan seal cutter, j 41736 - installer (rear output shaft...
• Sep 1, 2002 Service bulletinHarsh shifting, delayed upshifts, possible check trans lamp illuminated, possible diagnostic trouble code...
• Jun 1, 2002 Service bulletinSubject regarding harsh shifting, delayed upshifts, possible check trans lamp illuminated, possible...
• Oct 1, 2001 Service bulletinInformation regarding automatic transmission overheat
• Aug 1, 2001 Service bulletinInformation regarding fuese # 25 diode extension harness
• Jul 1, 2001 Service bulletinSome customers may comment on inoperative speedometer
• Dec 1, 2000 Service bulletinSome 1999 - current model vehicles, driven during extreme cold weather conditions, may experience pcv...
• Oct 1, 2000 Service bulletinCertain models equipped with 5.7L V8 engines, that are registered in california may experience a service...
• May 1, 2000 Service bulletinTo order an exchange injection fuel pump assembly for affected vehicles, isuzu md-tics / mi-tics pump...
• Apr 1, 2000 Service bulletinSubject regarding engine oil cooler hose replacement
• Mar 1, 2000 Service bulletinSubject regarding the mi-tics pump exchange request form
• Oct 1, 1999 Service bulletinVehicles equipped with aisin automatic transmissions may exhibit a TCM DTC 37
• Apr 1, 1999 Service bulletinInformation regarding the aisin automatic transmission diagnostic / core form
• Oct 1, 1998 Service bulletinNo provisions to adjust the belt tension on the alternator after an air conditioning system is installed
• Jun 1, 1998 Service bulletinInformation on vehicles fuel injection pump timing gear
• Apr 1, 1998 Service bulletinInformation regarding electrical system failure report