I've got a 2000 Crown Vic w/150k that has a funky rapidly fluctuating oil pressure gauge. It only happens when coming to a stop after 15+ miles or so on the freeway. It returns to normal when shifted to neutral or park or when you hit the gas.
Here's a link to a video so you can see what I mean:
I changed the oil and filter and cleaned the electrical connectors on the oil pressure sending unit to no avail.
What would you recommend as the next steps to remedy this?
Thanks in advance for any suggestions!