Four problems related to catalytic convertor have been reported for the 2005 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota 4Runner based on all problems reported for the 2005 4Runner.
There is an awful rotten egg sulfur smell being emitted from my 2005 Toyota 4 runner when driving with back window open. After doing much research, I see there have been many TSB's issued for 4 runners dating back to 2003 and up to the 2006 models. I brought my car into the dealer, but they tell me my engine is not covered under the TSB's issued. I feel this is a problem that should be covered.
I have a 2005 Toyota 4runner sport and there is a horrible sulfur smell that is emitted into the cabin while reaching rpm's of approximately 3000 - 5000.
Rotten egg smell while driving. (cat converter).
The contact stated that there was a rotten egg odor in vehicle. The service dealer referred the consumer to the manufacturer, and they stated that the odor was coming from the fuel that was being used in the vehicle because new england fuel had a higher rate of sulfur.