Well it looks like a new short block and rebuild is in my future. Not sure what happened, no indication of any motor issues whatsoever and the truck has been well maintained over the last 11 years I've owned it. Thought these things were "bulletproof" but I guess it is nearly 30 years old and...
All great points and suggestions, thank you. They were planning to troubleshoot a number of the items you highlighted. I will follow up with the findings when I learn more.
Any idea why oil pressure would decrease on factory gauge when RPM increases? Recently had an older Turbonetics T63 turbo implode and it was replaced with a brand new Precision turbo, which now has bearing play after the oil decrease event a few days ago. No weird engine noises or anything...
2010 Lexus GX460 with 88k miles. Very clean southern 2-owner vehicle with excellent service history/records. Interior is excellent and the vehicle hasn't seen any off-road use.
-IronMan Offroad Foam Cell Pro adjustable coilover suspension with w/2.5" of lift.
-Method 316 17x8 "0" offset...