Focus Fanatics - View Single Post - 2000 Focus (SPI), stalling at idle & noise coming from intake
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Old 12-19-2012, 01:01 AM   #4
Focus Enthusiast
Join Date: Feb 2012
Fan#: 94579
Location: Blyth, United Kingdom
What I Drive: 2001 Ghia 1.6

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As you have rebuilt the engine I would think you have already changed the air filter and (if it has one) the small foam PCV filter (at the bottom of the air box) but if not I'd change them out.

I'd also inspect all air hoses again...not forgetting the hose to your charcoal cannister (on the firewall).

IACV would be my first guess but as you say you have already checked it and the mating gasket.
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