Three problems related to engine exhaust system have been reported for the 2006 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota 4Runner based on all problems reported for the 2006 4Runner.
Exhaust system. Catalytic converter. Smell of sulfur/rotten eggs when accelerating especially going up a hill. Took car to dealer and they replaced catalytic converters. A few months later the problem persists. It seems now it does this more often.
Exhaust is being pulled into back window when cracked and the vehicle resets the air flow to recycle. I crack the back window to allow heat to escape and had the air flow set on fresh air. I make a stop and get back into the car the window is still cracked. Some time later there is a smell of exhaust and I realize the flow was reset and fumes are getting pulled into the vehicle. The biggest problem is my child is in the back seat and she is already choking when the odor gets to me.
I recently purchased a new 2006 Toyota 4 runner. I have had nothing but motor transmission, electrical failures. I have only had my vehicle for 1 month and anything and every thing has gone wrong. I even had to give my daughter cpr on the side of the road due to carbon monoxide inhalation. She went into respiratory failure do to this she has severe asthma.