NHTSA Complaint #10226117 — 2007 TOYOTA SIENNA

I HAVE A 2007 TOYOTA SIENNA. WHEN THE ENGINE IS COLD AND STARTED I GET A NOISE THAT SOUNDS LIKE A LIFTER PROBLEM. ALTHOUGH THE WEATHER WILL EFFECT THE INTENSITY AND DURATION OF THIS NOISE IT IS ALWAYS THERE. THE TOYOTA DEALERSHIP I TOOK IT TO HAD A FACTORY ENGINEER COME OUT AND HE HEARD THE NOISE AND SAID IT WAS NORMAL AND ATTRIBUTED IT TO "PISTON-SLAP". AT THIS TIME THEY ARE TELLING ME THERE IS NO REPAIR FOR THIS CONDITION. THEY ACKNOWLEDGE THERE IS A NOISE BUT THEY SAY THEY CAN DO NOTHING ABOUT IT. THIS NOISE DEVELOPED APPROXIMATELY AROUND 20,000 MILES ON THE VEHICLE. OTHER SIENNA'S THAT ACQUAINTANCES OWN DO NOT HAVE THIS PROBLEM. SOME MORNINGS WHEN IT IS COLD OUT THE NOISE IS SO LOUD IT TURNS HEADS AS I DRIVE DOWN THE STREET. EVIDENTLY THIS IS A PROBLEM THAT TOYOTA KNOWS ABOUT BUT REFUSES TO FIX. *TR