Ecoboost Performance Forum

Ecoboost Performance => Troubleshooting, Maintenance, TSB Articles => Troubleshooting => Topic started by: Scott4957 on February 27, 2016, 05:30:30 PM

Title: Identify these leaks
Post by: Scott4957 on February 27, 2016, 05:30:30 PM
What a fun game LOL. Got under the MKS for the first time since purchasing it, she got a fresh fill of Mobile 1 Synthetic. I snapped a few shots of some areas that look to be leaks, though they are most likely seeping as there was nothing worth mentioning on the inside of the plastic cover that lays under these two points. One picture is where the passenger side drive shaft comes out, the other appears to be a rear motor mount that is off center on the drivers side. The fluid is the color of new synthetic motor oil. Again I did not see anything on the inside of the plastic cover or anything on my driveway so its likely nothing to worry about but I thought I would check.

(http://i118.photobucket.com/albums/o120/scott4957/20160227_151523_zpsdgfj9aaz.jpg)

(http://i118.photobucket.com/albums/o120/scott4957/20160227_151554_zpseuehsfoo.jpg)
Title: Re: Identify these leaks
Post by: AJP turbo on February 27, 2016, 05:35:08 PM
If you think thats nothing to worry about then im glad you are not my mechanic....your ptu is fuct and is leaking...gear oil is the same color as motor oil
Title: Re: Identify these leaks
Post by: ZSHO on February 27, 2016, 06:01:02 PM
That does not look normal IMO,there is a recall on the halfshaft and did you have it inspected at the dealer.  Z
Title: Re: Identify these leaks
Post by: SHOdded on February 27, 2016, 06:05:09 PM
Motor mount failure has been known to happen from time to time.  That could very well be the cause of this "leak".  Have you noticed any "natural gas" type smells while driving?  If the PTU vent is puking, it is pretty obvious.   With regards to seals, the PTU-transmission seal is the one that leaks, and the mix comes out brownish pink (trans + PTU fluid), but that should originate on the other side of the PTU, not the passenger halfshaft side.

So I'd clean up the area for now and watch more closely to identify the real source.
Title: Re: Identify these leaks
Post by: ZSHO on February 27, 2016, 06:08:46 PM
It looks like possibly one of the bolts was changed,it has a Aqua green/blue hint of color on it.  Z
Title: Re: Identify these leaks
Post by: AJP turbo on February 27, 2016, 06:22:40 PM
What areu talking about z?
Title: Re: Identify these leaks
Post by: BiGMaC on February 27, 2016, 07:26:05 PM
Wonder if that aqua paint stripe crossing the seal and extending on to the bolt and casing is one of those "tamper detectors" ... There are a few on my car for sure in various colors and it was bought new.
Title: Re: Identify these leaks
Post by: Scott4957 on February 27, 2016, 07:31:57 PM
Quote from: SHOdded on February 27, 2016, 06:05:09 PM
Motor mount failure has been known to happen from time to time.  That could very well be the cause of this "leak".  Have you noticed any "natural gas" type smells while driving?  If the PTU vent is puking, it is pretty obvious.   With regards to seals, the PTU-transmission seal is the one that leaks, and the mix comes out brownish pink (trans + PTU fluid), but that should originate on the other side of the PTU, not the passenger halfshaft side.

So I'd clean up the area for now and watch more closely to identify the real source.

I may have noticed the natural gas smell once, its not something that happens often, that was my first thought when i seen it but I have no idea where the fluid ends up when that happens. I agree, I didn't think it was the PTU/tranny seal due to where it was located and the color. I had the same plan, I cleaned it all up and will check it again after I drive it for a day or two. Everything is under warranty so if it continues I will take it in to Brads mechanic to get it fixed right ;)
Title: Re: Identify these leaks
Post by: Scott4957 on February 27, 2016, 07:53:15 PM
Quote from: ZSHO on February 27, 2016, 06:08:46 PM
It looks like possibly one of the bolts was changed,it has a Aqua green/blue hint of color on it.  Z

I had assumed its marked like that to see if it has moved or been removed at some point.
Title: Re: Identify these leaks
Post by: 66 Galaxie on February 27, 2016, 09:41:03 PM
PTU passenger side axle seal is a well known leak.  I would get it checked out before your PTU gets low on fluid and dies.

If you are a DIYer here's a write up on doing seals on the PTU for a Taurus X which is basically the same unit.
http://www.myfordfreestyle.com/forums/viewtopic.php?f=12&t=5140&sid=bcdd6c6c31a880e1284b0928ec46df25 (http://www.myfordfreestyle.com/forums/viewtopic.php?f=12&t=5140&sid=bcdd6c6c31a880e1284b0928ec46df25)
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