If yours is the 12 valve 1HDT and not the 24 valve 1HDT one of the issues seen here in Australia was big end failure as i said relevant only to the 12 valve. Toyota did bring out different big ends never did it as a recall though. Hope it isn't that serious though.
Hi all just joined.
Vehicle is a 1HZJ105R lifted and locked changing motor and gearbox due to
to a 6.5 optimizer with a H151 F box and 3.9 ratio diffs;p