PCV valve removal

FISHINGINSC

MEMBER
2008 FORD ESCAPE
2.3L
4 CYL
2WD
AUTOMATIC
70,000 MILES

My Haynes manual states to follow directions for removing the intake manifold. I know that is where the PCV valve is located on this vehicle, but my question is, the first step to taking off the intake manifold is to depressurize the fuel system, is this necessary since I will remove the fuel rail, pressure regulator, and injectors as a single assembly?

7 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

Yes, the intake has to be removed.

My question is, why are you replacing the PCV? This is not a normal failure.

Roy

Removal and Installation
1. Remove the intake manifold.
2. Depress the 2 release tabs and remove the PCV valve.

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Wednesday, February 20th, 2019 AT 5:25 AM

FISHINGINSC

MEMBER
4 POSTS

I'm burning oil. No leaks noted. No smoke out of the tailpipe. Manual states it is time to change. The vehicle is eleven years old and has never been changed. Oh, and the gas pedal sticks and one of the causes states this could be due to bad PCV allowing oil to the linkage causing pedal to stick. Seems like a lot of work but I'm up to the task. The design is horrible!

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Wednesday, February 20th, 2019 AT 6:02 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Got it.

I doubt the PCV is the issue at all.

The rings around the pistons are most likely worn and that is why you are burning oil. You can confirm this by doing a wet and dry compression test. That will confirm if the rings are the issue.

https://www.2carpros.com/articles/how-to-test-engine-compression

As far as the fuel pedal sticking, I would clean the throttle body of all carbon. This is a service at 50,000.

https://www.2carpros.com/articles/throttle-actuator-service

Roy

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Wednesday, February 20th, 2019 AT 6:37 AM

FISHINGINSC

MEMBER
4 POSTS

Thank you for the information. Should rings be worn with only 70,000 miles and regular oil changes? I am the original owner.

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Wednesday, February 20th, 2019 AT 7:01 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

No, they should not.

Normal oil usage for these engines is one quart every 1,000 miles. That does not settle with me but that is the way the manufacturers word there warranty so they do not have to fix it for free under warranty.

Roy