Ford Focus Forum, Ford Focus ST Forum - View Single Post - ZETEC Engine stumble - SOLVED
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Old 08-25-2008, 07:44 AM   #99
satoripooh
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Join Date: Apr 2006
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Location: dayton, ohio
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Quote:
Originally Posted by grimple1 View Post
stupid vibration/rough idle problems are back.... yeah ford!
me too. i've changed the hose, replaced the DPFE sensor, full tune up (plugs, wires & air filter)...and STILL the stumble is back. got plenty of power, just a stupid stumble.

i'm gonna assume it's a stray vacc leak until i prove that wrong, then i'm gonna be in the O2 sensor camp. i wondered if maybe having the exhaust/gas regulation jacked up for a while didn't torch the O2 sensor.

we'll see! till then to ford and the wonderful zetec stumble!
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