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This is my 2003 Cadillac Escalade EXT that cranks but does not start. It will start however if I bypass the fuel pump relay to force power to the pump as I demonstrate in this video. This means I likely have a bad relay or my computer is not sending a signal to start the fuel pump when the key is turned.
Try this BEFORE you replace your fuel pump.
Disclaimer: I’m not a mechanic or repairman; I’m just a person whose stuff keeps breaking so I try my best to keep it alive.