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Topic Review (Newest First)
01-29-2015 03:34 PM
Jevik Thank you so much! After struggling with a p0171 and rough idle and bad misfiring in wet weather, this helped me pin down the problem to the pcv hose.
12-15-2014 05:10 PM
beyond_theft I'm going to check for this cause i have the same problem and done the same thing you have except ive had a timming belt issue
08-08-2014 04:08 PM
amc49 Hey, when that's all they make what're you gonna do??? If me you make up the whole thing out of conventional bulk hose so at least when it fails again you can replace it at 1/4 the normal cost. I no longer use the steel tube in the middle, rather custom bent/cut steel brake line and short adapter pieces of hose on the ends.
08-05-2014 10:14 PM
bac512
Quote:
Originally Posted by TerryB View Post
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
Hmmm, I see the heat shield which is suppose to protect the hose, but the part that goes bad is the elbow on the left, which is not protected by the heat shield... sooooo Is this really an improved version? (And yes, I know this post is very old...)
10-05-2012 04:43 PM
ChaosWarlord26 Have you read the entire thread? Because it sounds like you have checked everything but the possible vacuum leaks the thread is about.
10-03-2012 07:40 PM
evilmonkeytamer 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
10-02-2012 03:03 PM
TerryB 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
10-02-2012 09:28 AM
zx003
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?
09-08-2012 03:03 AM
ditscheit
focus

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
07-04-2012 02:16 PM
GeeGee 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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