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Make sure the small black wire with a green stripe has a good connection to the NEG (-) post of the battery.
Make sure the NEG battery cable has a good connection to the engine block (not the frame).
Make sure there is a good ground from the NEG post of the battery to the body with a #10 or larger wire (stock is a black wire with a white stripe).
Check the ground from the engine to the firewall.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.