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05 1500 5.3 new motor won't run


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Posted

New 5.3 all ran previous. new long block in. go to start cranks won't start. New grounds, crank sensor, cam shaft sensor. Everything is plugged in. Got fuel. No spark. Checked fuses. 

Posted

Both coil harness are plugged in?

 

Did you make sure the grounds to the back of the cylinder head are there?

Posted

Redid the ground from the battery to the block. Inside of that wire was green. Cleaned and resoldered it. It's bsck up and running now. 

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