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Purge Valve Failure, Ford Blaming BOV?

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7.9K views 8 replies 3 participants last post by  Coyote Chaser  
#1 ·
Hi everyone,

My Eco's been at the Ford dealership for over a week now for a faulty purge valve and I just had a call today and they explained that they can't work on my car under warranty because of "aftermarket hoses" so because of that, I'm taking my car home and working on it myself (I think I know what the issue is but I'm completely open to suggestions as I'm just a backyard mechanic).

I've had some other Eco owners discuss their own purge valve issues, and I've read some threads discussing the purge valve stuff, it seems like a fairly common issue to our cars in particular. The service guy I spoke couldn't really accurately relay what the mechanic was telling him so I couldn't get a solid name on what "aftermarket part" was causing them to be unable to work on my car, but my guess is the BOV I installed (Turbosmart Kompact Shortie Dual Port) is the part causing the warranty trouble bc in order to install it, you need to remove a part of the factory hose and replace it with the boost reference adapter and a aftermarket rubber hose, the hoses being directly connected to the purge valve.

My current "repair game plan" is to check & re-tighten every hose, every clamp associated with the bov, then check if the issue remains, if it does, ill order another OEM purge valve (FR3Z-9G297-H) and then try from there.

TL;DR

Has anyone else run into purge valve issues while having a recirc bov installed?

Does anyone think the BOV is the culprit? Could a BOV damage a purge valve?


So far 2 others I know of have had issues with their purge valves, all with the exact same bov as me.
 
#2 ·
Im running the same Valve, and havent seen a single issue. I routed my hoses from the bov to the Boost reference adapter underneath the engine cover and ziptied them down so they werent flopping around, and used threadlock on the nipple attachments when I assembled the Boost ref adapter. I also made sure to recalibrate the BOV itself and check it every few months for o ring wear. lastly I used the OEM hose on the 2nd Nipple back to the Crankcase rather than the provided Aftermarket hose and made sure to tighten it down solidly.
 
#4 ·
Is there any way you can provide pictures for me to see it as a reference? I used the install video and basically followed it religiously, it was the one that involved cutting into the oem hose, using the AEM hose connecting it into the purge valve OEM hose, plugging up one of the exits of the boose reference adapter and routing the other hose back into the BOV itself. I think i’ll recalibrate the BOV too, and check for the o-ring damage if there is any, im probably going to take apart basically all the hoses, clamps, and re attach them. I also ziptied them down, i ziptied the long hose that goes towards the adapter against the air intake tube, i dont have many photos but once i get my car today ill be sending photos pointing them out
 
#5 ·
Can you access another boost reference point for your BOV?
Example; access port under intake manifold, near clyinder 4 ?
Im not 100% sure i know what you’re talking about, not to any fault of your own im just clueless, im going to try and look for it when i get my eco back today but if you could provide a diagram or a picture that would be awesome, but im going to try and find it asap. I think i should be able to access the pojnt but ill need to just figure out what it looks like👍🏻
 
#7 ·
Image

This is a picture of the access port, when my intake manifold was removed from my engine and turned upsidedown. You should be able to access it from underneath. However, I found it easier to disconnect and remove the plastic intake manifold.
 
#9 ·
The advantage of that location, is that it's out of sight... and what the Ford Tech doesn't see... Well? It may be one way to resolve your warranty issues!??
I do have my Tial BOV hooked up in that location, and it works ok. With my system, the vacuum is more of a signal, and the boost pressure opens the valve.
PS: I've seen other guys hook theirs in with the manifold mounted MAPT, or even into an aftermarket hose bibb or nipple.