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Blowing oil from dipstick

94corvette

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Check PCV.

Posted on Feb 04, 2009

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1 Answer

How can I stop oil from coming from my dipstick?


Depends on the cause.
Blow-by is when oil blows by the rings in the cylinders into the combustion chambers or compression blows by the rings into the crankcase. It can also be caused when too much pressure builds up in the crankcase because of a venting problem.
So blow-by can cause smoke out the tailpipe from oil burning with gasoline, or oil collecting in the air cleaner, or blowing out a seal or other place like your dipstick tube.
If it is caused by worn piston rings, the rings have to be replaced.
If it is a venting problem, you need to open up the vent, like the PCV valve or the air intake port.
If you remove the cap where you add oil and there is a vacuum when the engine is running, the venting system is working. If oil blows out the hole, there is too much pressure in the crankcase.

Nov 29, 2015 | Cars & Trucks

2 Answers

Why is motor blowing oil and dipstick out


You have a problem with the rings that seal the combustion chamber from the crankcase .
Try replaceing the PCV valve but I think the problem is much bigger then that at this point its kind of late the damage it done .

Apr 17, 2015 | Cars & Trucks

1 Answer

WHAT COULD THE REASON BE FOR SUMP PRESSURE AND OIL BLOWING OUT AT THE DIPSTICK?


Blowby, Do you have a lot of blowby? with warm engine at idle, remove oil fill cap, is it puffing out smoke?

Check your oil pressure, or maybe a gasket issue?

Dec 16, 2014 | Cars & Trucks

1 Answer

1992 cadillac deville leaking oil at dipstick


I would look for other leaks. If you are sure it's leaking at the dipstick tube, there is normally an o-ring where the tube presses into the engine. In general, this is an odd place for a leak, as ther eshould be no oil pressure in the pan (where the tube terminates) and unless the engine is overfilled with oil, the tube end shouldn't be immersed in oil to leak. IF there is pressure in the oil pan, that generally indicates bad rings. I have seen engines where the oil dipstick actually pops out of the tube under pressure when the engine is running due to pressure in the oil pan from blow-by at the rings.

Jan 05, 2014 | 1992 Cadillac DeVille

1 Answer

Volkswagen beetle problems


Two possibilities I can think of.. Dipstick not fully inserted... or is it possible that you have overfilled the crankcase with oil??? On my VW, I learned the hard way to take special care when checking the oil level with the dipstick... I had to fully remove the dipstick... clean it off... and THEN reinsert it... and pull it back out.. and then look to get an accurate oil level reading... It must have something to do with how the dipstick tube runs down into the crankcase....

Jan 05, 2014 | Cars & Trucks

1 Answer

Oil dipstick breaking


Most likely it is not. There should be a PCV valve that lets the pressure off, if it is bad or missing, that would cause the crank case to build up pressure and blow oil out. First though be sure that there is no leaks in the heads or gasket and that there is not too much oil in the engine. The dipstick tube should not extend all the way into the oil reservoir and let oil out.

Oct 21, 2013 | Kia Cars & Trucks

1 Answer

5.3 blows dipstick out


Sounds like your piston rings are bad causing excessive blow-by ...meaning your power is going around your rings and building massive crank pressure and using your dip stick housing as if it were a pressure relief valve ...motor needs to be rebuilt by an automotive machinist.

Jan 12, 2013 | 2004 GMC Sierra

1 Answer

The car has no oil but the dip stick shows that it is full!!! what duz that meen?


wipe the dipstick off well,check 2 or 3 times if there is compression problems it might blow some residue oil back up dipstick tube, [and dipstick out a little bit][rings] sure fire test, drain oil,change filter fill with new oil if you do not no proper amount try 4.5 litres and go from there.

Dec 07, 2009 | 1991 Mercury Grand Marquis

1 Answer

Oil blowing out of the dipstick tube.


On top of the valve cover there is a fresh air breather unit. Make sure the breather unit is not plugged.
Also the fixed orifice PCV should be clear. Find a tool that will go through the orifice and make sure it is clean.
Remove the vacuum hose and check it for cracks or internal damage. With the engine running, make sure you have vacuum through the hose.
Let me know when your finished cleaning the crankcase breather system.
Regards,

Apr 09, 2009 | 1994 Jeep Wrangler

1 Answer

Oil blowing out the dipstick tube


a fairly common problem on any of those high mile or abused 4.0liter engine either #1 your PCV ventilation tubes are plugged those are thos small black lines comming out of your valve cover or #2 your getting really bad blow by in your valves. 1 being easy to do and 2 not so easy!!

May 26, 2008 | 1995 Jeep Cherokee

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