SGILWHITE Posted July 11, 2015 Share Posted July 11, 2015 on one end of my idle control valve, there is a small hexagonal hole. what is this for? the other end has the wiring harness but i dont know why my idle control valve has this hole...its like you can put an alen key into it. Quote Link to comment Share on other sites More sharing options...
artscot79 Posted July 12, 2015 Share Posted July 12, 2015 Neither do i none of the should have any holes in them unless its an aftermarket part and that's the spindle fitting hole which is threaded inside Quote Link to comment Share on other sites More sharing options...
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