Optima Bus Corp: Fuel System, Diesel
Optima Bus Corp reported this defect to federal regulators on Mar 24, 2005 and put the number of vehicles at risk at 417. The repair is free for as long as the recall stands.
The 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.
The 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.
The 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.
24 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2003 Optima AH-28 | 0 | 1 | 0 | 0 |
| 2003 Optima Opus 29 | 0 | 3 | 0 | 0 |
| 2003 Optima Opus 34 | 0 | 3 | 0 | 0 |
| 2003 Optima RT-52 | 0 | 1 | 0 | 0 |
| 2002 Optima AH-28 | 0 | 1 | 0 | 0 |
| 2002 Optima Opus 29 | 0 | 3 | 0 | 0 |
| 2002 Optima Opus 34 | 0 | 3 | 0 | 0 |
| 2002 Optima RT-52 | 0 | 1 | 0 | 0 |
| 2001 Optima AH-28 | 0 | 1 | 0 | 0 |
| 2001 Optima Opus 29 | 0 | 1 | 0 | 0 |
| 2001 Optima Opus 34 | 0 | 1 | 0 | 0 |
| 2001 Optima RT-52 | 0 | 1 | 0 | 0 |
| 2000 Optima AH-28 | 0 | 1 | 0 | 0 |
| 2000 Optima Opus 29 | 0 | 1 | 0 | 0 |
| 2000 Optima Opus 34 | 0 | 1 | 0 | 0 |
| 2000 Optima RT-52 | 0 | 1 | 0 | 0 |
| 1999 Optima AH-28 | 0 | 1 | 0 | 0 |
| 1999 Optima Opus 29 | 0 | 1 | 0 | 0 |
| 1999 Optima Opus 34 | 0 | 1 | 0 | 0 |
| 1999 Optima RT-52 | 0 | 1 | 0 | 0 |
| 1998 Optima AH-28 | 0 | 1 | 0 | 0 |
| 1998 Optima Opus 29 | 0 | 1 | 0 | 0 |
| 1998 Optima Opus 34 | 0 | 1 | 0 | 0 |
| 1998 Optima RT-52 | 0 | 1 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 05V110000.
Full record for the 2003 Optima AH-28 → · Recalls carrying a do-not-drive advisory → · Where this data comes from →