2011 Workhorse R26 problems, complaints & recalls
Safety recalls (1)
Fuel System, Gasoline:storage:tank Assembly 2010-07-27 · campaign 10V348000 · 1,328 vehicles
Defect: NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2011 WORKHORSE W22 AND R26 TRUCKS MANUFACTURED FROM FEBRUARY 5, 2007 THROUGH MAY 24, 2010. THE FUEL-FILL CAP ASSEMBLIES USED TO SEAL THE UNUSED SIDE OF THE DUAL-FILL GASOLINE FUEL TANK WERE PRODUCED WITH A HOSE MATERIAL THAT DID NOT MEET DESIGN SPECIFICATIONS. DURING NORMAL USAGE THE HOSE MATERIAL MAY DETERIORATE WHICH MAY RESULT IN FUEL LEAKS.
Risk: A FUEL LEAK INCREASES THE RISK OF A FIRE WHICH MAY RESULT IN PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH.
Fix: DEALERS WILL REPLACE THE ORIGINAL FUEL-FILL CAP ASSEMBLIES WITH ONES ASSEMBLED WITH HOSE MATERIAL THAT MEETS DESIGN SPECIFICATIONS. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR BEFORE OCTOBER 8, 2010. OWNERS MAY CONTACT NAVISTAR AT 1-260-461-1890.
Service bulletins (21)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2026-02-05 · IK2600090 · Other
new carb idle reduction change request
Electrical System 2026-02-03 · IK4300035 · Service Bulletin/Repair Instructions
this tool is designed to compare diamond logic feature data across multiple vehicle configuration files. it allows users to quickly load files either manually or directly from the diamond logic builder vehicles folder using vin-based selection. as files are added or removed, the comparison runs auto
Engine 2026-01-26 · IK2600255 · Other
this document provides guidance for assessing the feasibility of implementing a customer-requested change to an engine or vehicle parameter/feature. customer requested changes will be approved in accordance with the requirements specified in 40 cfr part 1037 to ensure continued compliance with green
Engine 2026-01-19 · IK2600256 · Service Bulletin/Repair Instructions
this article is intended to provide information for how to program international engines that have been sold to another company and installed in a chassis that does not have an international vin number. this may include detroit series 40 engines, perkins, street sweepers, cranes, fire trucks, genera
Engine 2026-01-02 · IK2600047 · Service Bulletin/Repair Instructions
engine replacements for all international engines will need to follow this procedure.
Structure:body 2025-12-19 · IK1600272 · Service Bulletin/Repair Instructions
this document will guide the user through a step-by-step procedure for detecting water leaks in vehicle cabs and windshields using an ultrasonic sound detector.
Showing the 6 most recent of 21 bulletins. Search all of them free at nhtsa.gov.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.