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Jerry
Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 1740
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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What will sensor will make the fuel pump relay not trigger..

Customer Question

what will sensor will make the fuel pump relay not trigger.. I check the fuses and they are good and its a new fuel pump but its not getting any voltage at the pump but the realay has voltage but not getting trigger?
Submitted: 1 year ago.
Category: Dodge
Expert:  bill replied 1 year ago.

a crank sensor can cause the fuel pump relay not to trigger WHEN CRANKING, but will set a fault code, you WILL need a code reader to pull codes and see if this code has set, but remember the fuel pump relay cycles on for 10 seconds at FIRST key on then cycles on while cranking so if the relay is not EVER cycling there can be another issue NOT a sensor issue