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Dodge Repair/'12 ram 1500 5.7: fuel pump running continuously


this truck starts & runs. today i heard the fuel pump running even with no key in the ignition.what could cause continous power to the fuel pump wiring?

Hi J.B.,
My first thought is that the fuel pump relay is  stuck in the"on" position. So locate that relay in the main power box and try borrowing a different relay for it that has the same part number to see if that solves this problem. Let me know if not and I can look at other possible reasons for it remaining "on"."

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Roland Finston


Free fast answer to your repair question about a Chrysler/Dodge/Plymouth car, minivan, SUV, or truck. Problems with electronically controlled engines and transmissions as well as body wiring problems are my specialty. This free troubleshoot advice forum helps you diagnose faults, minimize repair costs or do-it-yourself.

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