One problem related to gas recirculation valve (egr valve) has been reported for the 2007 Nissan Frontier. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Nissan Frontier based on all problems reported for the 2007 Frontier.
First thing that happened the gas gauge just quit working second the fuel line started leaking on the frame just after gas gauge fixed then transmission messed up transmission radiator and thermostat fixed and no running hot took it to dealer says nothing wrong with it also code is showing egr valve.