general problems of the 2008 Toyota 4Runner

I'm experiencing major frame rust mainly at the crossbeams and all over the frame. Metal is literally crumbling away if I touch if. I don't even want to remove the rust to prepare for anti-rust coating since there may not be much metal left. Its only at 150k miles and shouldnt be crumbling away this fast. Just recently had to replace muffler and tailpipe since the muffle connection literally rusted away. Tacomas were able to have their frames replaces. The 4runner has a similar if not identical frame due to them sharing the same underlying platform. This should be pretty obvious that 4runners need to be a part of that recall.

Engiene/powertrain computer/module checked. Has been rescheduled four times by the dealer and continues to give the same fault in the car. The fault is the following as it runs and brakes the second beautifulness of the trasmission is left. And when he releases the brake a little, the throat is thrown to the front giving a blow. He does it many times in the day. By untoyota 4runner 08 engine control module (ecm) defective.

My truck has had a sulphur smell for a long while. I was advised that there is a service bulletin on it. T-sb-0346-09. I contacted Toyota and received a case # from susan on August 28,2017. That # is 1708280670. She advised me that I am 3,000 miles past the milage that Toyota accepts. This is an emission issue and I feel that they should assist in the replacement cost. The service bulletin has Toyota replacing a front and rear pipe assembly which includes catalytic converters. The issue has been known for a while and they should have recalled this system not waited for people to complain. By not recalling it they avoid making legitimate emission/engine repairs. The sulphur smell now happens most of time that I drive it now. I do not know what else that I can do. The Toyota dealer had advised me to contact Toyota.