My 408 isn’t humbucking!!

[coyote]

It’s been a few months since I picked up the 408. I just reconfigured my whole setup. Amp and pedals all working nicely with my Stratocasters.

So I plug in the 408.... and it hums like crazy. Almost as if it were a cheap single coil. No matter what positions the three switches are in, it hums... and as I re-orient the guitar, it hums more.

This is not happening with my Strats (one with stacked humbuckers, the other single coils).
Anyone have any idea what might be occurring?

 

[dcm_guitar]

Sounds like a ground loop. Could be in any number of spots.

What happens when you plug the 408 directly into the amp (bypassing the pedals)?

 

[Dead&Co]

This?

 

[Rider1260]

If the guitar used to be quite then look for loose solder joints or loose ground on the bridge or trem claw