Can You Guys Help Me Out Please . I Have A 03 Duramax And Today I
Came Out Of Work And It Would Not Crank Over And Had No Glow Light . Tried To Jump It But No Luck Still No Crank Or Light.

So I Got In To Work The Nexy Day After Having To Be Driven Home In A Ford , Tried Start The Truck And It Fired Up Just Fine . So Replaced The Ignition Eletrical Part And Drove It For About 4 Days . Then While Helping A Friend Move Went To Start The Truck And Nothing Same Thing No Glow Light And It Won't Crank Over. Checked My Main Harness Connections And Tried Again Still Nothing. Then I Hit The Top Of The Main Fuse Box Under The Engine And Then It Started Up . What Is Under The Fuse Box That Could Cause This No Crank Or Is This Just Luck.

check the ignition relay sometimes when a relay is going bad you can tap on it to get the contacts inside to conect