ON CERTAIN TRANSIT VEHICLES AND TROLLEYS EQUIPPED WITH CUMMINS ISB-02 DIESEL ENGINES BUILT WITH EMC CONTROLLED FUEL LIFT PUMPS. ERRATIC VOLTAGE SUPPLY TO THE FUEL LIFT PUMP CAUSES PREMATURE ELECTRIC BRUSH WEAR INTERNAL TO THE FUEL LIFT PUMP. THIS PREMATURE WEAR COULD RESULT IN FUEL LIFT PUMP FAILURE AND IN SOME CASES MAY CAUSE AN ENGINE STALL CONDITION.
Consequence & remedy
Consequence: SHOULD THE ENGINE STALL, A VEHICLE CRASH COULD OCCUR.
Remedy: CUMMINS, IN CONJUNCTION WITH OPTIMA BUS, WILL NOTIFY OWNERS AND REPAIR THE ENGINES BY EMC RECALIBRATION AND REPLACEMENT OF THE FUEL LIFT PUMP AT NO CHARGE TO THE CUSTOMER. OWNERS MAY CONTACT CUMMINS ASSISTANCE CENTER AT 1-800-DIESELS OR OPTIMA BUS AT 1-316-779-7700.
ON CERTAIN TRANSIT BUSES EQUIPPED WITH WEBASTO HEATERS, THE BURNER TUBES ARE MADE OF MATERIAL THAT DOES NOT MEET SPECIFICATIONS AND COULD FAIL PREMATURELY.
Consequence & remedy
Consequence: SHOULD THE BURNER TUBE FAIL, THE COOLANT HEATER COULD OVERHEAT, POSSIBLY RESULTING IN A FIRE.
Remedy: WEBASTO DEALERS WILL REPLACE THE SUSPECTED DEFECTIVE PARTS FREE OF CHARGE. OWNERS MAY CONTACT OPTIMA AT 316-779-7700 OR WEBASTO AT 810-593-6000.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
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No exact-year investigations in this snapshot.
2004 Optima AH-28 Problems, Complaints & Recalls | Skip That Year
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