Ian_Olivas
Senior Member
- Joined
- Oct 19, 2016
- Posts
- 325
- Reaction score
- 67
- Location
- San Antonio,Tx
- Ram Year
- 2002
- Engine
- 4.7L Magnum
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Ouch, this looks not very healthy.
As said this is humidity buildup and humidity is nothing to be in a engine.
You either drive the truck only a few miles twice a day or you have a coolant leak.
Check the dipstick if there are similar deposits and if the color of the oil is normal.
Check the coolant level and the coolant itself for similar deposits and control your coolant level in the next days.
If the coolant is sinking or contaminated then you have a leak in a oil/coolant passage or a leaking head gasket.
If the coolant and engine oil looks uncontaminated then you should add some miles to your daily trip to heat up your engine well so that this humidity evaporate.
This humidity het sucked in the engine thru the breather hose when tthe engine cools down and
if you just just cruise for a few miles the humidity acumulates in the oil instead of evaporating due the hot oil temp.
Chris
Well, 14 miles should be enough heat to evaporate and blow the condesation out. Check your oil and water temp to make that sure!
If you have a lot of blow by then you probably want to install a catch can to catch oil fumes and particularly the humidity.
However, i would run a bottle of seafoam in the oil, then change oil and install the catch can to catch this stuff.
Still, the yellow color of the slime on the filler cap looks like yellow antifreeze to me, usually it's white/brownish color.
Chris
Haha trust me it wasn’t from a lack of a catch can. Long story, but it was from a damaged cylinder wall. I was running dirt cheap oil from Walmart while my new engine was getting built. I was going through 5 quarts of oil every two weeks so I wasn’t running good stuff. I never had any yellow build up before until I switched oils. And I know for a fact I didn’t have any leaking coolant eitherWell, 14 miles should be enough heat to evaporate and blow the condesation out. Check your oil and water temp to make that sure!
If you have a lot of blow by then you probably want to install a catch can to catch oil fumes and particularly the humidity.
So I have a heater core leak and my coolant depletes cause it's leaking but I also have a lit of white exhaust smoke that I believe is engine coolant. And I'm thinking it's a blown head gasket because I took the cap off to check it cause I saw a little on it the last oil change and this time it looked like that and I have not drained the oil yet. I tried to start the truck and it instantly dies on me unless I press down on the pedal to keep the rpms up, so I feel like it's a compression loss issue because of the head gasket. And no normally I don't drive short distances and I've been using the same oil for at least 5 years no issues but my engine is up to 223,000miles now. I'll actually drain my oil now and check the dipstick and report back to see if the rest looks the same. And I use that zerox G-05 coolant that is yellow like what I'm seeing on the capOuch, this looks not very healthy.
As said this is humidity buildup and humidity is nothing to be in a engine.
You either drive the truck only a few miles twice a day or you have a coolant leak.
Check the dipstick if there are similar deposits and if the color of the oil is normal.
Check the coolant level and the coolant itself for similar deposits and control your coolant level in the next days.
If the coolant is sinking or contaminated then you have a leak in a oil/coolant passage or a leaking head gasket.
If the coolant and engine oil looks uncontaminated then you should add some miles to your daily trip to heat up your engine well so that this humidity evaporate.
This humidity het sucked in the engine thru the breather hose when tthe engine cools down and
if you just just cruise for a few miles the humidity acumulates in the oil instead of evaporating due the hot oil temp.
Chris
We have owned it since it was new off the lot and this never happened, is it more common in more millage engines? And okay I'll replace that hose and see if I can get it started to burn that offOp... I’ve had that moisture build up every winter ( summer not so much but still some) since I bought my 04 Dakota new with the 4.7 running 0w-30 amsoil since 6000 miles on it. In the past I’ve had my pcv valve freeze shut because of that crap and not wanna stay running. Maybe yours is gummed up. Something to try for a couple bucks is replace it. I believe the problem is the plastic fill housing holding the pcv valve doesn’t get warm enough, especially in the winter months and short tripping it, to burn that condensation off like others have said.
Yep. That's where I'm at right now. Engine dies unless I'm pressing the accelerator pedalI’ve had that condensation since it was new also but yes it seems as it has aged it has gotten worse over time. I think it is pretty common in these motors. I would change/reroute that hose and replace the pcv valve and see if that helps. The time the pcv valve froze shut it wouldn’t run at all unless I gave it throttle.
In that write up on installing a catch can you had put the pdf file for a reroute with the pcv system and there was a cap that goes on the resonator airbox. Where can I get a cap like that to use? Or if that's a lot where can I get the kit?I too have a 4.7 with the same issue: regular short trips that don't fully heat the oil to burn off the condensation. So I researched oil catch cans and decided to install one. You can find my write up here:
http://www.ramforum.com/threads/oil-catch-can-on-a-4-7l-write-up-lots-of-pics.110417/
After only 700 miles I was amazed at how much I poured out. Hope this helps.
In that write up on installing a catch can you had put the pdf file for a reroute with the pcv system and there was a cap that goes on the resonator airbox. Where can I get a cap like that to use? Or if that's a lot where can I get the kit?