POSSIBILITY THAT CRACKS MAY DEVELOP IN THE HEAT EXCHANGER AT THE POINT WHERE THE EXHAUST MANIFOLDS ARE WELDED TO THE HORIZONTAL EXHAUST PIPES.THESE CRACKS MAY RESULT IN THE INTRODUCTION OF VARYING AMOUNTS OF EXHAUST GASES INTO THE PASSENGER COMPARTMENT WHEN THE HEATER IS IN OPERATION.(INSPECT AND REPLACEHEAT EXCHANGERS AS REQUIRED.)
Information provided by NHTSA Data updated May 2013