NHTSA Complaint #10558472 — 2011 JEEP WRANGLER

I STARTED TO HEAR A KNOCKING NOISE FOR 3-5 SECONDS ON A COLD START. IT DID NOT DO THIS ON ANY SEQUENTIAL STARTS FOR THAT DAY. TOOK IT TO THE DEALER, WHO CHANGED OIL FILTER AND OIL. STILL MADE SOUND ON RECEIVING VEHICLE. TOOK IN AGAIN AND DEALER REPLACED THE LIFTERS. STILL MADE NOISE UPON RECEIPT. TOOK IN FOR A THIRD TIME, THEY ARE NOW SAYING IT IS A NORMAL NOISE, EVEN THOUGH IT NEVER MADE IT BEFORE. JEEP SPECIALISTS SAY THAT THIS IS A NORMAL NOISE AS WELL. AFTER RESEARCHING ON-LINE, I HAVE FOUND A LARGE AMOUNT OF INFORMATION LEADING TO A MALFUNCTIONING CYLINDER HEAD ON THE EXACT MAKE AND MODEL OF MY JEEP ENGINE. THERE HAVE BEEN THOUSANDS REPLACED, BUT FOR SOME REASON THIS WAS NOT EVEN CONSIDERED FOR MY VEHICLE. *TR