new prob appeared today after 45 mi trip.
was at light, stopped in drive. oil pressure dropped from its usual 18-20 to zero while sitting there. RPM at 350 running fine.
shifted to neutral. pressure returned to normal. RPM at 500
all the way home this continued, running fine, better than before my recent repairs. idle when stopped in drive is slightly lower and smoother than before my recent repairs.
pressure is normal (20) when driving, but less responsive to acceleration than it was yesterday, after repairs. only goes to 23 or so when accelerating, yester day it went to 30-40 when giving gas.
when sitting in drive the pressure at zero, it sometimes is jumpy, jumping up to 3-4, but mostly at zero, shift to neutral and rpm increases amd pressure goes 18-20, normal.
could this be my pressure gauge?
oil pump itself?
oil screen clogged?
yesterday I repaired the ccv vacuum prob and other probs, could these vacuum repairs have broken crap loose and this just be a minor gauge or screen prob?
my book does not even describe pressure gauge or location, do you know of better manual than Haynes?