RecallMyCar

NHTSA Recall 05V110000: Fuel system, diesel

OPTIMA BUS CORP reported this safety recall to NHTSA on , covering an estimated 417 vehicles. It affects 4 models including the Optima AH-28.

417
vehicles potentially affected
4
models affected
NHTSA campaign05V110000
ComponentFUEL SYSTEM, DIESEL
Report receivedMarch 24, 2005
Initiated byNHTSA Office of Defects Investigation

Defect

On trolleys and transit coaches equipped with cummins isb diesel engines, the fuel lift pump could fail in a manner which results in engine fuel starvation, which could result in a stall condition. Potential lift pump failure modes include: brush wear out, bushing failure, rotor tab insert failure, or any other failure mode that would cause the fuel pumping element to stop spinning.

Safety risk

If the fuel lift pump pumping element stops spinning and the fuel pumping vanes stop in a location which blocks fuel flow through the lift pump, the engine will be starved of fuel. Fuel starvation could cause low engine power, engine misfire, or engine stall. Prior to the engine stalling, the operator could experience low engine power, engine misfire, and/or dash-mounted fault lamp illumination.

Remedy

Cummins is conducting the owner notification and remedy for this campaign. Owners may contact cummins at 1-800-343-7357 or optima at 316-779-7700.

Notes

Customers may also contact the national highway traffic safety administration's vehicle safety hotline at 1-888-327-4236 (tty 1-800-424-9153), or go to http://www.safercar.gov.

Vehicles covered by recall 05V110000

Make and modelModel years
Optima AH-281998, 1999, 2000, 2001, 2002, 2003
Optima Opus 291998, 1999, 2000, 2001, 2002, 2003
Optima Opus 341998, 1999, 2000, 2001, 2002, 2003
Optima RT-521998, 1999, 2000, 2001, 2002, 2003

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.