Originally Posted by jcshow
I have an '02 4x4 with about 70K miles. I have a low idle, which sounds like the problem described by others as soot buildup in the throttle body. I want to clean it myself. I am not a mechanic, but work on my dirtbike so I'm not completely clueless. Before I try to clean the throttle body, however, I want to make sure I know what I am looking for. Does anyone have a picture of the engine with the throttle body identified? Thanks.
After you take the intake manifold cover off (the sheet metal piece that says 4.7 on it) you will see where the plastic intake tube leads to on the engine. There is some throttle linkage on the left side of the threttle body, spray the sh
t out of it with WD40 and work the linkage back and fourth with your hand letting it snap back a couple of times. In the days of the new gen1 Tundras the dealers favorite money maker was to tell customers with sticking throttle body's and high & low idle, that it needed replacing at $1200 a pop!
I had a friend that was a Toyota mechanic that told me to do exactly what I just explained here.