Dishwasher gurgling through sink

[DEDon]

de-gurgling the sink drain

Wasn't sure what to title it but, is there a slim possibility that the trap for the sink/dw could use a little clean-out? As mentioned, of course, all DW exits go into the sink exit line. I've seen 'em bubble up into the sink basin. just sayin'...

 

[Swiss1]

Hi DEDon,

I did remove the trap and cleaned it. Nothing blocking, it, just a thin film if grime which I removed.