2000 Excursion 4X4, V10, limited.
In the engine compartment there are 2 small relay boxes right along the side of the master brake cylinder on the fender side. The first one is almost touching the power brake booster and the second one is right in front of it. The second relay box is clicking constantly even after I shut off the truck. Do you know if this relay is associated with the 4X4 system? Will it cause the 4X4 dash indicator to not light up when I try to engage into 4HI? I cannot find any reference anywhere as to what this is associated with. Can anyone help me with this?