Question about 2005 Ford Focus
I would need to know the code you received but I'm assuming you're replacing these parts due to a lean concern. The focus is known for vacuum leaks at the pcv hose elbow. Look on the back side of the intake plenum between the engine and firewall and you'll see a vacuum hose/tube coming from the center of the intake going toward the drivers side of the engine. Check this hose, especially at the elbow for a sucked in or broken hose. If this isn't the problem, the easiest thing to do is to hook up a scan tool and monitor thr short term fuel trim pids. Spray the intake and surrounding area with 2+2 or a similiar accelerant. the fuel trims will go negative when you spray near the vacuum leak. Good luck. Be sure to clear the keep alive memory after the repair. This can be done with the scan tool or by disconnecting the negative battery terminal for 5 minutes. Good luck.
Posted on Apr 08, 2011
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Posted on Jan 02, 2017
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