One problem related to gas recirculation valve (egr valve) has been reported for the 2004 Toyota RAV4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota RAV4 based on all problems reported for the 2004 RAV4.
Check engine light and vehicle stability light are on, I have on and off smelled the sulfur smell. Also, have a problem with the cruise control going out of control, around sharp corners where I have to slam on brakes to disengage to control the vehicle as it will not stop acceleration, it increases acceleration.