07 LT 5.3L Sudden no start/crank

[tc8510]

Have you checked all your grounding wires? I had this same issue. It came down to my grounding wire that goes from the firewall to the top of the engine block. It was hanging on by a thread down by the block.

 

[TexasBob]

I am having what sounds like the same problem on an '03 1500 engine Yukon now. I fixed that particular grounding wire a few years ago. It broke because GM didn't leave any slack in it.

 

[J-Herkel]

Have you checked all your grounding wires? I had this same issue. It came down to my grounding wire that goes from the firewall to the top of the engine block. It was hanging on by a thread down by the block.

I'll check it when I get home. I know what you're talking about. The firewall side is good. Haven't checked the engine side.