hi guys,
i have followed procedure to replace my coolant in my gtr & have removed the 'air drain plug' which sits on the front of the engine, just under the injector boom.
when i release this bolt though there is no visible sign of coolant bleeding through this hole, i even removed the bolt & still no sign of air or coolant bleeding through...could it be blocked in some way?
i let the engine get to full temp on idle & followed my workshop manual.
regards