2013 GT Idle question
While idling at approx. 750RPM, the engine drops to about 500RPM (noticeably) when one of the engine fans kick on. Only happens when the car is warmed up so it's the higher temp fan. Has anyone else had this problem? It's almost like the fan is drawing too much current or the engine / alternator cannot support it. I have a BAMA tune but I don't think this is causing it. Thoughts or suggestions are appreciated!