Manifold/header/muffler/tail Pipe problems of the 2008 Toyota Tundra

My 2008 Tundra suddenly showed multiple dash lights when I started it. It ran rough, tried code reader on it ,again multiple codes at once. Every item can't bad all at same time. The main problem was air pump failure, have a feeling it's associated with exhaust problem. Truck has been ticking since about a month after I bought it brand new, I just assumed that's the way it was since it quiets after warms up. Turns out manifold is cracked by the pump. Of course warranty is up. After reading online seems like a lot of people are having same problem. Have had it several times over the years for oil changes etc. . The dealership's know there is a problem and ignore them. I have two other Toyota cars and this is the first Toyota truck I've bought . Toyota we'll have a bigger problem when go back to buying the chevy,Ford, Dodge. They were buying before they came out with full size Tundra. Get your act together Toyota or you will lose a lot more money and respect than what the recall will cost.

The engine check light came on and the engine went into limp mode, which reduces engine power making it dangerous to drive. The check engine light came on from the emissions valve set failing. When repaired by dealer they also discovered a cracked manifold. This emissions valve set failure seems to be very common on 2008 Tundras and is very expensive to repair. To my surprise the manifold was cracked and that is a very expensive repair and may have contributed to the emissions valve set failure. Toyota should recall their emissions valve set and redesign it so it does not fail, and is less expensive to replace, and finally they should not program the engine to go into limp mode if this failure occurs, as it can cause you to lose power while driving in various conditions that require power to get off the road safely.