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Moisture under oil cap...?

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17 replies to this topic

#1
DiscoBears

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Well I have had some concerns but today did a fluid check and I always look under the oil cap (not sure why). And I wipe out any gunk...well plain as day was moisture...not oil..truck hadnt run for two days prior...any thoughts, advice, tests next move? I can take it in just someone let me know if I am overreacting.

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#2
Justin

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Problem with the water in the oil cap could be many things

 

Bad Head gaskets? 

 

have you done a carbon test yet?



#3
DiscoBears

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Problem with the water in the oil cap could be many things

Bad Head gaskets?

have you done a carbon test yet?

No whats that

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#4
DiscoBears

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I will google it but I have never had a vehicle blow anything but cant wait for my next edition of things I didnt know I could repair before Land rover

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#5
DiscoBears

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Problem with the water in the oil cap could be many things

Bad Head gaskets?

have you done a carbon test yet?

Is it a compression test?

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#6
lilcrawler

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How's your engine temperature? I know moisture could be caused by head gaskets or a liner issue. Mine was running quite hot before it failed completely (220°F) after a lower temperature thermostat was installed no matter the driving scenario. Then my cooling system over-pressurized, and I'm sure you know the rest.
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Tyler
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I get below 15 mpg on Fuelly!
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#7
lilcrawler

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Is it a compression test?
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It's usually a coolant "sniff" test. It checks for hydrocarbons in the coolant (a sign of combustion gasses). It has to be done by a shop. I know Cerrone's in Redwood City has the equipment to do it, and they know Land Rovers, but it shouldn't be too hard to find a shop that has he equipment.
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Tyler
2004 DII- Not modified heavily enough

I get below 15 mpg on Fuelly!
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#8
DiscoBears

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How's your engine temperature? I know moisture could be caused by head gaskets or a liner issue. Mine was running quite hot before it failed completely (220°F) after a lower temperature thermostat was installed no matter the driving scenario. Then my cooling system over-pressurized, and I'm sure you know the rest.

Actually everything is running fine...just a very suspiscious oil leak that leaks and leaks oil...but I almost never have to refill

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#9
lilcrawler

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Actually everything is running fine...just a very suspiscious oil leak that leaks and leaks oil...but I almost never have to refill
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That's a little scary. Are you sure that it's engine oil? My power steering leak created quite a mess on the bottom of my truck. That oil has to be coming from somewhere.


I wouldn't worry too much if you are running at a normal temperature. It may just be condensation or something.

Edited by lilcrawler, 29 February 2016 - 08:14 PM.

Tyler
2004 DII- Not modified heavily enough

I get below 15 mpg on Fuelly!
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#10
DiscoBears

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You know I think it might be worth taking it in for an assessment...i know there are three major leaks...but the culprit changes depending on the weather

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#11
SLOHybrid

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Did the car sit for a while?   if so probably is nothing


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#12
DHappel

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Did the car sit for a while?   if so probably is nothing

That's my guess as well.  Condensation.  It's pretty common on stuff that sits w/o use for a while, and you said it runs fine so my take is no big deal.


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#13
JFuller

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X3. If you're not loosing coolant unexplainably then you're probably just fine. And the "carbon" test doesn't have to be done by a shop. You can rent the kit from any autozone type shop and you'll need to buy a bottle of the fluid. Lastly take the truck to a quarter car wash and wash the underside of the motor as clean as you can, drive home, and then get under it and find the leak. If the closest quarter wash is just around the corner then go to one a little farther away. You don't want a bunch of water dripping all over you and making the leak harder to find. Don't freak out yet so far you haven't found anything troubling.
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#14
psykokid

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i'm going to fourth the suggestion that it's just condensation on the top of the cap. Warm air does get pulled into the motor via the crankcase breather so it's not uncommon. Highest point for evaporated water to collect when the truck has been sitting for a bit.


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#15
Disco2Guy

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I was thinking cracked filler neck perhaps?


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#16
DiscoBears

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Sweet advice gang all around...

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#17
Timbo

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If you want to test the coolant yourself, if just had first hand experience that the below tool works as advertised

http://www.amazon.co...ailpage_o04_s00

It works by testing the air pocket in the expansion tank and will change color from blue to yellowish green if it detects what should not be there.

I bought it because I was loosing coolant, but stayed blue and it turned out to be loose hoses after I'd changed them. But unfortunatly just had it go to green this weekend, so either got a big bill or a lot of diy ahead.

Just thought - If your in the area, (Belmont/san Mateo) you can borrow mine. Test is really quick.

Edited by Timbo, 07 March 2016 - 11:19 AM.


#18
JFuller

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Be sure to use a fresh bottle of the fluid. Exposure to the atmosphere, however small, can affect the test fluid over time.




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