EA05020 · EA
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN Investigation
DAIMLERCHRYSLER CORPORATION (DCC) HAS NOTIFIED THE AGENCY THAT IT WILL CONDUCT A SAFETY RECALL (06V199) OF CERTAIN JEEP GRAND CHEROKEE VEHICLES TO REPLACE THE ENGINE'S ELECTRIC MOTOR DRIVEN COOLING FAN. THE 182,875 VEHICLES INCLUDED IN THE RECALL ARE MODEL YEAR (MY) 2002 EQUIPPED WITH 4.0 LITER (SIX CYLINDER) ENGINES MANUFACTURED FROM FEBRUARY 4, 2002 THROUGH JUNE 17, 2002; AND MY 2000 EQUIPPED WITH EITHER THE 4.0 LITER (SIX CYLINDER) OR THE 4.7 LITER (EIGHT CYLINDER) ENGINE MANUFACTURED FROM JANUARY 31, 2000 THROUGH JUNE 12, 2000.DCC NOTED THAT THEIR ANALYSIS OF FAILED PARTS SHOWED EVIDENCE OF BRITTLE FRACTURE OF THE FAN BLADE.DCC FURTHER STATED, POOR BONDING BETWEEN THE RESIN MATERIAL AND THE GLASS FIBERS WAS OBSERVED, WHICH MAY BE ATTRIBUTED TO THE INJECTION MOLDING PROCESS. SINCE THE ROOT CAUSE OF FAN FAILURE COULD NOT BE CONCLUSIVELY IDENTIFIED DCC DECIDED THE RECALL SCOPE WOULD BE DETERMINED BY THE BUILD DATE RANGE OF THE COMPLAINT VEHICLES.THERE WERE 48 REPORTS FOR MY 2000, AND 196 FOR MY 2002.ODI WILL CONTINUE TO MONITOR THIS ISSUE FOR REPORTS ON VEHICLES OUTSIDE OF THE RECALL SCOPE.
PE05039 · PE
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN Investigation
THIS INVESTIGATION WAS OPENED ON JULY 13, 2005, BASED ON FOUR ODI CONSUMER REPORTS.ODI CONTACTED ALL OF THOSE COMPLAINANTS AND EACH OF THEM REPORTED THAT PIECES OF THE BROKEN FAN BLADE HAD DAMAGED THE RADIATOR AND PENETRATED THROUGH THE PROTECTIVE FAN SHROUD.SINCE OPENING THE INVESTIGATION, ODI HAS RECEIVED 12 NEW CONSUMER REPORTS.IN ITS RESPONSE TO ODI'S PRELIMINARY EVALUATION INFORMATION REQUEST DAIMLERCHRYSLER CORPORATION PROVIDED ADDITIONAL OWNER REPORTS AND WARRANTY DATA.THIS PRELIMINARY EVALUATION HAS BEEN UPGRADED TO ENGINEERING ANALYSIS EA05-020 TO FURTHER STUDY THE ISSUES REGARDING THE ALLEGED FAN FAILURES.
EA01017 · EA
POWER TRAIN Investigation
DAIMLERCHRYSLER HAS RECALLED THE ZJ MODELS TO INCORPORATE A SECONDARY DETENT SPRING INTO THE SHIFTER.EVEN THOUGH THE WJ 6 CYL. VEHICLES USE THE SAME MANUAL DETENT LEVER THAT AS THE VEHICLES IN THE RECALL POPULATION, ODI BELIEVES THAT THE WJ REDESIGNED SHIFTER, WHICH IMPROVES FLOOR SHIFTER FUNCTIONALITY AND ERGONOMICS, HELPS TO PROVIDE FEEDBACK TO THE DRIVER TO INDICATE WHETHER ?PARK? HAS OR HAS NOT BEEN ACHIEVED.ALTHOUGH THE INVESTIGATOR WAS ABLE TO INDUCE A ?FALSE PARK? IN THE WJ PLATFORM FOR 6 CYL. VEHICLES, THE LEVEL OF DIFFICULTY WAS GREATER THAN THAT REQUIRED FOR ALL ZJ MODELS, AND THE COMPLAINT RATE WAS SIGNIFICANTLY LOWER THAN THE RECALLED ZJ POPULATION.FURTHER, THE ODI INVESTIGATOR WAS ALSO ABLE TO CREATE A ?FALSE PARK? IN PEER VEHICLES WITH THE SAME LEVEL OF DIFFICULTY AND FREQUENCY AS THE SUBJECT VEHICLE WJ PLATFORM.THE WJ COMPLAINT RATE WAS INFLATED DUE TO NATIONAL EXPOSURE THROUGH THE PRESS. THE COMPLAINT RATE PRIER TO THE JULY 5, 2001 MEDIA COVERAGE FOR THE WJ VEHICLES IS SIMILAR TO THE PEER VEHICLE INCIDENT RATE.BASED ON THE ABOVE, A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME IN THE WJ POPULATION.ACCORDINGLY, THIS INVESTIGATION IS CLOSED WITH A SAFETY RECAL FOR THE ZJ PLATFORM ONLY.