Question about 2003 Ford Focus

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I have a 03 1.6 focus.i have a popping sound on tick over and more pronounced if i turn the steering wheel when the engine is idling.ive traced to noise to the air box intake box.i ran the engine with the intake box removed and the noise stopped.i did notice that the engine idle is erratic and air intake seems excessive and noisy.the car was serviced 6 months ago so i`m wondering if an engine tune would sort this problem out.thank you for your time.

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Could this of been caused by the air filter box and cover not being installed correctly or is thee noise still there after you installed it back,? if its still there then something is wrong the poping noise is a small back fire threw the intake, may be a bad coil or crossed sparkplug wire,i would have this checked asap.

Posted on Aug 29, 2010

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