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Larrysr1957's avatar
Larrysr1957
Explorer
Dec 23, 2020

Buzzing relay

The slide out relay in the fuse box Uber the hood is buzzing very loudly. Can anyone tell what the cause is and how to fix it
Thanks in advance
  • If there are other relays of the same model, try changing one to the noisy one. That should tell you if it is the relay or something else.
  • Harvard wrote:
    Weak or low battery power available to drive the engaged load.


    that's my best guess too.
  • Weak or low battery power available to drive the engaged load.
  • Dirty so contacts are not closing completely
    If enclosed style small plug in, replace it!
    Metal can style, replace.
    If large open, you can normally blow it out.
    What does relay supply?