986 engine out service time

[Boxstard]

IMHO you are still guessing what is the root cause and after all those extra work you may still end up with no fixing the very issue you have now. I’d continue investigation until positively ID the issue, then determine extra work while you are there, if any, as you desire. If you are giving up or tired of root-causing it, maybe more reliable and quick fix is to swap out with another running engine, I’d never $3K for a pair of new solenoids at the stealership.

[flmont]

you don't see much talk on those going bad unless you find green chunck's of rubber in either the oil filter or the oil pan as I understand it..I have to pull my engine this fall aswell. for the same job/inspection,...plus you can test those units with a 9 volt battery,.Ive never done it but there is a write up on it..! Frank