03-11-2021, 05:51 AM
I am not questioning that the IACV was sticking, and lubricating it cured the problem. I just want to share what I observed when I replaced my IACV: The original (defective) IACV did not show any signs of sticking in the aluminum throttle body assembly. There were no signs of galling, or abrasion, and there were no signs of any dirt or anything else that could have caused the IACV to stick. I performed side-by-side tests activating and deactivating the old and new IACVs side-by-side, and they both functioned identically. My conclusion is that the defective IACV that I replaced had an internal, intermittent short that came and went randomly. I applied a very light coat of grease to the new IACV and have never experienced the problem again. I would NEVER go through all the work to remove an IACV just to lubricate it and reinstall it if there was no hard evidence that it was sticking - once you have the old one out just replace it with a new one, unless you have nothing better to do with an entire day.