One problem related to blown head gasket has been reported for the 2005 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Nissan Altima based on all problems reported for the 2005 Altima.
The car started hesitating while driving and the head gasket was blown due to the pre cat system clogging up this is a very high cost repair for this vehicle and all these vehicles should be repaired at Nissan cost due to the amount of vehicles this has happened to and there being class action law suites over it. This is their fault not mine why should I be responsible for this cost when it has happened to numerous 05 Altima. They should man up and fix this issue. I have owned 3 other Nissan vehicles with no problems besides maintenance, but this is the last Nissan I will ever own, I was going to get an infinity but since Nissan makes those I will not be purchasing one of those either and will research before I purchase any vehicle to make sure Nissan doesn't have anything to do with the vehicle name. I'm done with Nissan and would not recommend anyone to purchase one they do not stand behind their name anymore. Also the vehicle has always been services at a Nissan dealership.