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Old 07-04-2012, 02:16 PM   #21
GeeGee
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I recently purchased a 2008 Focus SES and it has a rough idle. If you all noticed most of the intake parts are plastic....ya! So I started looking at the connections and found one of them appeared to be secure but it was actually cracked and loose. Fortunately it had a male type plug so I wrapped tape around the outside and inserted it back into the manifold and wrapped wire around it to hold it in place....It idles Great!. I couldn't believe how easy that was...you all might want to check for cracked fittings!
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Old 09-08-2012, 03:03 AM   #22
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Ive got a 01 with ztec 259648 miles same idle il be fixing but first battery causea weak batt willcause alot of problems shuttin stuff off. I will be lookin for leak as well thanks for yhis helpfull thread
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Old 10-02-2012, 09:28 AM   #23
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Quote:
Originally Posted by ChaosWarlord26 View Post
I actually had 2 bad hoses. Has anyone heard of crank case ventalation? Well this was the real bad hose. It goes the crank case on the top of the motor to the back of the intake mani. It has a hard plastic core with rubber elbows one on each end. One of my rubber elbows was in real bad shape So I replace it with High temp Silicone tubing. and has been runing great ever since. Hope this helps out a lot of people.
Is there a crank case ventilation on a 2.0 Zetec DOHC? And if there is one, where is it?
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Old 10-02-2012, 03:03 PM   #24
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Yes. It's called a PCV hose. Do not ask for a crankcase ventilation hose. You'll get the wrong one. I went through a hassle with rockauto because they had it listed in the wrong category and I got stiffed with the wrong one. You want this.

It's the newer version. It's mounted under the plastic intake manifold on the back of a Zetec. They wear out and collapse, or just split altogether. Do a search and you'll see plenty of pics. https://www.google.com/search?num=10....1.Gp0CtY_4Hhc
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Old 10-03-2012, 07:40 PM   #25
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im having a horrible miss in my engine. replaced the plugs, wires, and coil. took the injectors off and checked them and they were all spraying good. any more ideas? the car only has 80,000 miles. 2000 model split port 2.0
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Old 10-05-2012, 04:43 PM   #26
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Have you read the entire thread? Because it sounds like you have checked everything but the possible vacuum leaks the thread is about.
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