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How can you fix a 2000 ford focus that is idling rough and making a hissing sound?
Wiki User
∙ 15y ago
It sounds very much lke you have a leaking vacuum hose. Either it has deteriorated and needs replacing or it has come off its fitting. Carefully check the engine compartment in an effort to locate the source of the hissing sound. When you do repair or replace the hose you will probably cure the source of your idling (and hihssing) problem(s).
Wiki User
∙ 15y ago
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