OK, so it's looking like one of three things can be true:
I'm tempted to change it, because why not?
So, to that end, what is the special tool I need? Is the same part used across all the various GMT400 engines?
c
- The gauge is defective (unlikely, since I've checked two and they both read identically)
- The engine's oil pump is worn out (possible (engine has at least 105k miles on it, assuming the odometer is accurate), but probably also unlikely, since the engine seems to run very well when hot with no unusual knocking or any other noises that I've noticed)
- The sendier is failing (seems most likely, but we can't know for sure until it's been cross-checked with a known-accurate external gauge)
I'm tempted to change it, because why not?
So, to that end, what is the special tool I need? Is the same part used across all the various GMT400 engines?
c