Heater Core Outlet Pipe?

[jonny8ball]

Its come time to flush out the heater core and to do this I need to back flush it, tho I can't seem to find out which is the outlet pipe, is it the top or bottom pipe in the engine bay. Anyone know?

[KiwiRS4T]

Its come time to flush out the heater core and to do this I need to back flush it, tho I can't seem to find out which is the outlet pipe, is it the top or bottom pipe in the engine bay. Anyone know?

Don't know offhand - turn the heater on with fan at full blast and the outlet should be cooler

[Duncan]

don't know either sadly, although you should be able to follow one hose back to the rear of the water pump housing (that is the in).

but I don't think it matters.....flush from both ways for a min or 2, job done

[jonny8ball]

Thanks Duncan,that's exactly what I did yesterday. Worked a treat.