How can I purge air from my Fiesta engine?

Its best to purge air from the highest hose, with the engine running - just release the rubber hose carefully, let any air escape then push it back on. Careful if the engine is hot! You can tell if the air is gone as both heater pipes will be hot. Fiestas of this age though have an electrical heater tap (fixed onto the bulkhead) which is notorious for packing in.

John
January 2008