How to remove oil pressure sending unit

Hi, 1998 V6.

I did a head gasket replacement 2 weeks ago and now I'm getting a oil pressure light flicker sometimes at idle. Ordered a oil pressure testing kit - how do you remove the oil pressure sending unit?

Is it possible the debris from the headgasket block cleaning clogged the oil pump pickup screen? I was really careful, drained old oil, refilled, ran 2 mins then drained that oil and refilled again. Never saw any obvious water in the oil when head gasket failed.

 

It's a BPT fitting. It just threads into a hole in the block.

 

yes but the metal part appears to be some odd shape and fsm says you need a special tool. I could proabbly get some pliers on it but might destroy it.

Edit I saw a post that says a 27mm deep socket will work.

 

Oh, my bad, I misinterpreted. I usually just use a crescent wrench or channel locks.

 

No problem ,actually I'll try that before buying a deep socket.
And actually I may have had this issue long before the headgasket repair since I had a fast idle for perhaps years which I finally fixed.

 

The strange looking plumbers wrench with the red handle that flips when you kinda move it around works wonders on the oil pressure sending unit.

 

I think it is called a lavatory wrench. I have a whole head full of semi-useless information.

 

before you get too far into this search for this thread “crack at oil switch port”