High Idle when hot - low power on up hill

[fixkick]

usually when the IAC is unbolted from bottom of TB, the 6mm bolts snap
the IAC is a wax pellet thermal device
id not geat acid in the air side,
only clean the water lines, same we way as iSC
here is one destroyed ,, to show guts
not same engine, this is TBI but is same method of thermal valve.
http://www.fixkick.com/IDLE-AIR/Slide_Sh...ge_11.html

here it is removed, a real 16v IAC, if comes off easy, its more easy to clean water path, see red rust stain below.
when the water hits 150f this air valves closes, but is open, cold.

http://www.fixkick.com/IDLE-AIR/Slide_Sh...ge_29.html

Yes, There is free air path between the IAC hoses.

I don't know how the IAC work and how its mechanism looks inside but maybe it is
good idea to fill there vinegar to make an extra claning to IAC from inside ?

Anyway,
Tomorrow I will make the gasket for the TB
And I will be ready to install the parts back on.

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wax expands fast hot... uses this principle of operation.