Buzzing from Wish-Wash Interval Relay

[doslucero]

There is a strange buzzing coming directly from the Wish-Wash Relay when I press the brake, use the turn signal and sometimes start the car.  It only lasts a second or two.  Has anyone experienced this?  

[Henning]

Yep.

I suspect this comes from the ground spot for the wishwash and the turn signal relay which are both leaded next to the heater box. Maybe when using wiper and signals at the same time the ground currents interfere somehow. I gave mine seperate ground connections with a fabbed strong stripe of sheet metal at the hood release lever. This solved the buzzing issue.

 

hen

 

[doslucero]

I'll check it out the ground wires.  Thanks!  I just rebuilt the heater box so now that its working, it must be doing some funky things to the relay.