In the Failure mode and effects analysis and its classical effects, the classical priorities are determined by means of risk priority number and risk factors multiplication. However, exact risk priorities are criticized by many researchers for its imperfections and disadvantages so that many studies done on Failure mode and effects analysis and its effects to dominate the issues. In this paper, linguistic variables are used that later on by trilingual fuzzy numbers are used to assess the weighs and ranks of risk factors. To determine the weighs of each risk factors, the fuzzy hierarchical analysis method and ranking with selection of the most important impairment manner and fuzzy Vikor method, Data Envelopment Analysis are used. The suggested model applies the assessment and potential manners of ranking in the production of width strength set of the radiator of Samand car in the car company of Iran.