[gmcnoob]

Thanks jetmech. I guess I just assumed oil was leaking through the intake manifold bolts.

Thanks to this site I have solved many of my problems. Finally got my instrument cluster lights to work along with the exterior lights except the tail lights will not come on when I turn on the headlights. All other lights are doing their job. All fuses have been replaced and wires checked. I'm thinking the switch might need to be replaced. Anything I else I should check before replacing the switch?

Also on my fuse box I have a port for ECMB and ECMI but no connections for a fuse to stick in there. Is this a problem? All of the fuses in the pic have been replaced and put in properly. I don't know why some were upside down and the improper fuse was in the radio port.