NHTSA Complaint #10167590 — 2002 JEEP GRAND CHEROKEE

ON SUNDAY AUGUST 20 I NOTICED THAT MY VEHICLE WAS SHAKING AT CERTAIN SPEEDS. ON MONDAY AUGUST 21 I TOOK MY VEHICLE TO A MECHANIC WHO DIAGNOSED THAT WE NEEDED NEW SPARK PLUGS. THE SPARK PLUGS WERE REPLACED. ON TUESDAY AUGUST 22 WHEN I WAS LEAVING WITH MY VEHICLE IT WAS STILL SHAKING AND THE CHECK ENGINE LIGHT WAS ON. THE MECHANIC DIAGNOSED THE PROBLEM AS A BAD 02 SENSOR. ON WEDNESDAY AUGUST 23 HE CALLED AND TOLD ME THAT THE O2 SENSOR WAS NOT THE PROBLEM AND THAT I NEEDED TO TAKE IT TO THE DEALERSHIP. ON THURSDAY AUGUST 24 I TOOK MY VEHICLE INTO THE DEALERSHIP. THEY TOLD US THAT THEY COULDN'T FIGURE OUT WHAT THE PROBLEM WAS AND THAT THEY WERE GOING TO HAVE TO TAKE THE ENGINE APART. THEY CALLED ME ON FRIDAY AUGUST 25 AND SAID THAT THEY WERE GOING TO HAVE TO REPLACE THE CAMSHAFT AND LIFTERS BECAUSE OF "CARBON BUILD UP". WHEN ASKED WHAT CAUSED THE BUILD UP THE MECHANIC SAID THAT HE DID NOT KNOW. WHEN ASKED IF THIS WAS A COMMON PROBLEM WITH JEEPS THE MECHANIC SAID YES. *NM