Turn Signal Fuse Blowing on 2003 Chevy Suburban With 7-Way

Question:

I have a 2003 Chevrolet suburban 1500 had issues with wiring harness for 7 way pin so replaced it aswell as the 7 way pin connector now everything works except left turn signal checked fuses and the fuse inside the cab fuse panel. The left turn signal fuse is blown and keep blowing out when i replace it, its the only one that trips /blows out. Need help have a trip scheduled this weekend

asked by: John S

Expert Reply:

If you already replaced your 2003 Chevy Suburban's 7-way with something like the Curt # C55774, and you are still blowing fuses the only thing it can be is a bad ground or - far more likely a short on the wiring.

Check to ensure your grounds are connected to bare metal free of any dirt, paint, or corrosion, which is an easy check. The more difficult part is going to be a check on the wires, as you'll need to trace it back and use Circuit Tester # PTW2979 along the wiring to try and find where the short is. Alternatively just try and trace the wiring to see if there is any nicked, broken, or damaged. If you can't find it by tracing it you'll need to take it to a mechanic or your Chevy dealer to have it checked out.

expert reply by: Kyle S