Lost all negative to spark plugs an fuel injectors to my ford f150 5.4
If you lost ground to plugs and injectors tract the ground back to where the line has been broken.
No breaks in wires cranks but won't start still
Isn't ground for the plug supplied by the block, via the threads on the plug itself?
If you have no spark to any of the plugs then check the coil(s).
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