NHTSA Complaint #10147433 — 2003 JEEP LIBERTY

MARCH 2005 - 2003 JEEP LIBERTY 4 CYLINDER - CARRIAGE TOWN CHRYSLER, DELAWARE, OHIO - I TOOK MY JEEP LIBERTY TO THE DEALERSHIP FOR BACKFIRING, CHECK ENGINE LIGHT, RUNNING ROUGH. THEY FOUND ONLY SPARK PLUG #1 FOULED AND REPLACED ONLY THE SPARK PLUG. 2ND TIME APPROX A WEEK LATER I TOOK MY JEEP LIBERTY IN AND IT WAS RUNNING ROUGH, NO CHECK ENGINE LIGHT. DEALERSHIP REFUSED TO LOOK AT MY VEHICLE WITHOUT THE CHECK ENGINE LIGHT ON. 2 DAYS LATER I RETURNED VEHICLE WITH CHECK ENGINE LIGHT ON, RUNNING ROUGH, AND BACKFIRING. THEY REPLACED ALL SPARK PLUGS AND ALL WIRES. THIS HAPPENED AT APPROX 28,000 MILE ON THE VEHICLE. DECEMBER 2005, ENGINE LIGHT ON, RUNNING ROUGH. REPLACED SPARK PLUG #1 ONLY AND WIRE ON SPARK PLUG #1. I HAD BEEN TOLD BY SERVICE DEPARTMENT AT THIS TIME THEY HAD PUT A "SPECIAL" SPARK PLUG IN MY VEHICLE AND THAT THERE WAS A TECHNICAL SERVICE BULLETIN ON MY VEHICLE. JAN, 2006 - VEHICLE IS CURRENTLY IN THE SHOP AND THEY ARE TRYING TO DETERMINE WHAT IS WRONG WITH THE ENGINE, CURRENTLY THEY CANNOT FIND WHAT IS BURNING UP SPARK PLUG #1. TECHNICAL SERVICE BULLETIN: MFG BULLETIN NUMBER: 0803403 MFG BULLETIN DATE: 20040302 COMPONENT: ELECTRICAL SYSTEM DETAILS: NEW SPARK PLUG FOR 2.4L ENGINE. *JB