I have a 2007 Chevy Silverado 1500 with a solid passlock light on with no crank/no start. Originally I changed out the starter and then replaced the battery. First, after I changed the battery, there was no power at all but then I unlocked the door with the FOB and boom. The power was back on. However, it still did not start or even crank. I have been without a vehicle for over a week now. Please help remedy this. thanks