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Water in Vacuum PCV Vacuum Line - 99 F 150


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a1handy
User

Nov 4, 2017, 11:46 PM

Post #1 of 10 (422 views)
Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

5.4 Litre engine. 251,000 miles but runs perfectly and was just tuned up. Until about a month ago the truck had been sitting up for about 2 years due to a bad rear end.

While driving today I noticed the smell of antifreeze. After looking for a leak I found water squirting from the vacuum line that goes from the PVC valve in the right valve cover to the connector on top of the manifold. The water was not under pressure.

What could be the cause of water getting into this line. Thanks


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Nov 5, 2017, 4:43 AM

Post #2 of 10 (410 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

It sat for two years that's what. You no doubt have constant condensation and yes it makes water if it can't evaporate may be all that is. It won't end there if it was fine and just ignored for two years outdoors, rain and weather a list of things will be possible not just that. Check oil level now and change it for that and again soon. Do or check fuel if you should dump that or risk it? Brakes will be all messed up might or might not self clean with a few scary stops? Lots happens from just sitting even new cars - dead batteries, flat tires, water, brakes and have no miles to speak of are a horror,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 5, 2017, 4:55 AM

Post #3 of 10 (401 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

I think you are mistaken about which line that was coming out of. There is no possible way for it to "squirt" out of a crankcase vent line but there are a couple of small coolant lines in the area that attach to the throttle body that may have sprung a leak.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



a1handy
User

Nov 5, 2017, 5:33 AM

Post #4 of 10 (393 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

There is no water in the oil. It is definitely a vacuum line because when I disconnect you can feel the vacuum and the engine begins to run terribly. I tried to send a picture but the system will not allow. The truck has been running beautifully for about 4000 miles after repairing a few problems initially.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 5, 2017, 5:42 AM

Post #5 of 10 (390 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

Here is how you upload pictures

http://autoforums.carjunky.com/...LOAD_PHOTOS_P151389/



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



a1handy
User

Nov 5, 2017, 5:56 AM

Post #6 of 10 (384 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

<a href="http://autoforums.carjunky.com/photos/pic/389uo7Z7/1286.jpg"><img src="http://autoforums.carjunky.com/photos/pic/389uo7Z7/1286.jpg" border="0"></a>

This is a diagram showing the lines in question. The connection that is leaking is number 6C324. Also I have been asked if my truck has the coolant heated PCV system.


a1handy
User

Nov 5, 2017, 5:57 AM

Post #7 of 10 (382 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In




(This post was edited by Hammer Time on Nov 5, 2017, 6:01 AM)


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 5, 2017, 6:03 AM

Post #8 of 10 (378 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

You weren't copying the right code. I fixed it.

Do you see those other 2 lines that intersect at the nipple (8A577 & 8A505)? They are coolant lines so I suspect you have an issue in that area.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Nov 5, 2017, 6:04 AM)


a1handy
User

Nov 5, 2017, 6:20 AM

Post #9 of 10 (368 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

Do you know what the issue might be? Bad connector, leak, etc.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 5, 2017, 6:23 AM

Post #10 of 10 (366 views)
Re: Water in Vacuum PCV Vacuum Line - 99 F 150 Sign In

I'm not there to inspect this but there is some kind of issue in that areas. Your coolant is coming from those other lines somehow.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Nov 5, 2017, 6:24 AM)






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