Joined: Oct 2011
Location: Colorado Springs
2015 Vortech GT poor idle quality
I have a 2015 Gt with a Vortech supercharger, Pypes off road headers and a Lund tune. it runs and drives great. When it gets colder than about 30 degrees the idle drops from a steady 750rpm down to a stumbling 650rpm or so. It only happens when it's cold. I checked the blow off valve and it seems fine, all connections seem tight.... I'm mot sure what it could be. Any ideas what I should check?
2011 Black 5.0 GT/CS manual, Tech pkg, HID, Comfort pkg
1/4"wheel spacers, GT500 exhaust, AEM intake, BAMA tune, Amsoil
1995 5.0 cobra clone. BBK full exhaust, BBK intake, 70mm throttle body. (sold)