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Ford Mondeo Mk3 (2000 - 2007) Petrol - Popping In Air Filter - johnniebing

now getting a popping noise in airbox , seems to happen when engine is warm n on tick over
but when i take off the little black pipe in the middle of intake manifold it seems to go , put back on n it comes back

clean egr valve
clean idle control valve
and throttle housing

and she seems to have a slight misfire

any help would be greatful

Ford Mondeo Mk3 (2000 - 2007) Petrol - Popping In Air Filter - Collos25

Just because you have cleaned them it does not make them ok sounds like a faulty EGR valve but thats just a guess.