4.7 water under oil cap - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 
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#1 Old 02-17-2008, 07:04 AM
haf2race
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4.7 water under oil cap

2004 4.7, has anyone seen water under their oil cap? When you change oil there is no water in oil. I don't know if this is condesate or what, the oil is not milky and I don't seem to be using any water. Truck has 63,000 miles on it. I hope its not a head gasket. Thanks for the help.
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#2 Old 02-17-2008, 08:40 AM
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Sometimes you might get a small amount of water that shows up on the bottom side of the oil cap. It's just condensation and nothing to worry about. As long as it's a few small droplets then no worries. If it starts to look frothy, foamy or milky, worry.

I live in Florida where the humidity is high nearly year round and I've seen it with every vehicle I have owned at one point or another.

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#3 Old 02-17-2008, 09:56 AM
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This was an old problem early on for the 4.7s. It was never proven to be any kind of a problem, and everybody just kinda forgot about it. I wouldn't worry until your oil starts to exhibit symptoms.

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#4 Old 02-17-2008, 10:35 AM
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I have that issue in my 04 ram hemi too. Not only water droplets but a rusty residue on the cap also. Im not worried though because my 01 Dakota w a 4.7 had the same thing and it wasnt an issue
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#5 Old 02-17-2008, 10:45 AM
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Thanks for all the help.
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#6 Old 02-17-2008, 06:15 PM
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If it does start to froth i would say to change the pcv valve.

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#7 Old 02-17-2008, 06:19 PM
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I noticed it on my 07 Hemi, but wasn't concerned about it.

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#8 Old 03-03-2008, 07:16 AM
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I checked it again and it has alot of condesate under the cap. Do I need to get rid of this truck? I don't want to.
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#9 Old 03-03-2008, 07:21 AM
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Quote:
Originally Posted by sreill
I have that issue in my 04 ram hemi too. Not only water droplets but a rusty residue on the cap also. Im not worried though because my 01 Dakota w a 4.7 had the same thing and it wasnt an issue
I get the same thing on my 3.7L, and after a very long thread discussion, I believe that enough people had it to realize that it was a common issue that didn't mean anything.

If you do a search for "yellow crap in oil", there is a whole thread that talks about this and many say that it was due to the design of the oil cap and not getting warm enough or something like that.

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#10 Old 03-03-2008, 07:24 AM
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Thanks for the replies. I just don't think water and oil is a good mix.
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#11 Old 03-03-2008, 09:07 AM
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Usually it is more prevalent in truck's that drive short distances and don't heat up enough to burn off that condensation. That oil filler neck is so tall, it is much cooler then the engine so moisture condenses. Old trucks with an oil cap right on top of the valve cover do not exhibit that problem as much. It is completely normal and acceptable to have some droplets and rusty color.

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#12 Old 03-03-2008, 09:11 AM
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This condesate isn't going to the bottom end is it?
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