After having tried to straighten out the metal piece, I reinstalled the cluster in the truck. The needle now rests right by the bottom of the gauge (probably not where it's supposed to rest, I would guess). When starting the truck, it rises up above the 1/3rd mark, and after driving for a bit...
This is why I should write my posts faster. 😂
The FSM also mentions testing the gauage with a 3.4W bulb... unclear to me what that bulb is, or what that accomplishes. For the sender it seems like a more useful test, or you could measure the resistance against battery positive (12V).
So as for the condition of the oil pressure gauge... the FSM says to measure resistance across the terminals and you should get 55 ohms (same resistance as for the fuel sender and coolant temp). I was measuring 45 ohms at DC, so... something has changed. But if something had shorted or fried I...
I went ahead and took it apart to find the short or damage, and... found some interesting things, but unfortunately no solution. Firstly, it disassembles pretty easy with a Philips #1, #0, and a 7mm, and the gauge cluster falls apart into four different segments, so you can swap each one apart...
Hey folks, I'm afraid I fried my oil pressure gauge by attaching my oil pressure sender wire to the wrong post as part of my engine swap. It was pinned high when I had it on the wrong post (presumably because I had grounded it by putting it on the wrong post), now it's always low.
Has anyone...