03 Oil Pressure Sending Unit

[Noto81]

I've got an 03 yukon with the 5.3. Long story short my oil pressure showed little pressure while driving and almost none at idle. Then a day or two later showed 80+ while driving. Was told to replace sending unit and that it was near the dis. cap. Its not, anybody know where to find it? Thanks in advance.

---------- Post added at 07:22 PM ---------- Previous post was at 07:04 PM ----------

Got posted in wrong board, my bad.