Mike, Thanks for your advice. Ifound the report at
***********-odi.nhtsa.dot.gov
“There is a potential for reducing power braking assist due to an air leak in the vacuum booster. The air leak is caused by a rubber diaphragm that became cracked during vacuum booster assembly at a supplier. Model year 2002-06 Nissan Altima, 2004-06 Maxima, 2004-09 Nissan Quest, 2003-07 Nissan Murano vesicles are sold in the U.S. are on a similar platform as the Renault Samsung SM5 and SM7 sold in Korea




********nhthqnwws112.odi.nhtsa.dot.gov/acms/docservlet/Artemis/Public/Foreign%20Campaigns/2009/F-Campaigns/FRCL-09F043-7668.pdf