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Inspect IAC Valve Condition

2:56
11:41
51.2K views

At 2:56 in

"Breaking In" LSXcalade's New Engine and Ironing Out Some Issues (Twin Turbo Escalade ESV)

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What happens here

The owner uses an Allen wrench to remove the idle air control (IAC) valve from the engine. Upon inspection, the rubber plunger on the old IAC valve is found to be hardened and "crusty," indicating wear and reduced functionality. This hardened rubber prevents the plunger from moving freely and sealing properly, which significantly contributes to the unstable idle issue. He states that this is the problem with the part.

Goal: Check the physical condition of the IAC valve

Tools and materials

  • Allen Wrench — Removing the IAC valve screws
  • Old IAC Valve — The engine component being inspected and replaced

What they say

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throttle bodies sometimes you have those days where you just grab the right Allen first first and sometimes you have days where you grab the right Alum the 10th time you try one today is the second kind of day yeah this thing looks like it's freaking crusty yeah ew like it's like it looks like it's like burned this is all hard like it's it's like you know the that one like has shine to it and stuff yeah Jeff's is like this one's like freaking cooked okay now we get the tools off the

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