Bad Engine Valve Seals - Symptoms Explained | Signs of failing engine valve seals in your car 

I replaced valve seals myself having had the described symptoms and now no more blue smoke. Should have done it long ago.

I replaced my intake and exhaust valves on my Subaru ej253. Word of advice; if it's your first time order a few extra seals. I hammed them in with a 10mm socket as suggested and you're supposed to stop when the ping noise changes tone as it means your new seal has seated. I over-hammered the first couple of exhaust seals and had to re-use old seals; I think oil is getting into the exhaust manifold as I am having some consumption and on one bank the manifold is starting to look oil-soaked. I'm going to have to pull the head and replace the exhaust seals on the one bank. Many many many hours of work (especially on a Subaru) when if I just had a few extra spare seals during my "learning phase" the extra work could have been prevented.

Every question I’ve been looking for has been answered , no engine oil spot yet but I def need to replace my gaskets and valve seals

As you said oil is sucked through during high vacuum. Can you adjust the PCV valve to stay more open to mitigate the problem in the meantime?

Your information is 100 right. Thanks a lot for you.

A black sparkplug tells you your running rich. to mutch oil is brown like a two stroke that burns a fuel oil mixture. Your car does not have to burn mutch oil it can be a small amount because huge oil consumption happens over a longer amount of time not in an instant. Remember oil lubricates and the seals have to be worn over a longer amount of time before oil passes trough in to the cilinders. You could also have sticky oil rings normally they come out due to pressure but carbon can stick them in place over time. Oil gets passed the rings and the car burns oil. Replacing can help but only gives a 20% difference overall. Depending on how mutch you like your car it could cost between 400-6000 or more dollars to solve this problem. ( some engines need both sides done V6 V8 V10 and so on) plus doing it wrong can cost you a new engine.

I have a 97 ek hatch, and I have the blue smoke when first starting up symptoms, which goes away after a minute. Never shows up again after wards unless I let it sit for 8 hrs plus. Just bought some valve seals and about to replace them.

I have been looking for this info for a while.

How to differentiate between piston rings and valve stem seals?

Can this cause misfire on 1 cylinder? Trying to diagnose after replacing ignition and fuel injectors car stick has misfire and has always consumed excessive oip

I did it on an 03 lancer es and now it wont start. Spark plugs were changed 15k miles ago but the car was driven with bad valve cover seals..

Great information but I have a question.... What happens if oil intrudes at the bottom of the valve stem seal where it sits on the valve guide? Are the valve stem seals also sealed inside or is it just on top?

I’m having blueish smoke on my car but only when I let it on idle for about 10 mins. No smoke on cold start and no smoke on idle as well…

Nice work. Very good information and thanks in advance. May I ask, do you think stop leak products can stop oil leak in the valve seals and the head cover gasket? I have minor oil loss in my car's engine. No drip but I see oil stains as if sprayed over the body parts (as if sweat). I use lpg as we all know it wears out the valve seals earlier than petrol or gasoline engines. So what do you think about this? I surely know and am aware of it that even if it works, it is a temporary solution. So does it worth using these products? (I can find Liqui Moly which I surely trust the company because I use their oils with pleasure).

I have mercedes clk 320 wen i accelerate its smoke elot and some time in smoke elot on ideling and sometimes no any help

I have a 07 grand marquis and it’s burning oil pretty heavily. It doesn’t run like low compression but idk.

I have oil on top of my cylinders on top on my spark plugs inside the intake manifold would that be a bad pvc value someone put diesel in my car na it’s gas been happening ever since will idle but dies when u shift into gear

Good work

Does this cause misfire?

Mine just smokes in the morning and then never again throughout the day! Burning oil smell... 2006 freelander 1 td4

Excellent video. ❤❤❤

My dodge caravan smoke only when you park it and idle for about 5 or 10 minutes. But not during start up. Would that still be leaking valve seals? It’s white but have bluish tint.

Imma replace the valve seals in my z31 if this doesn’t solve the problem I’m parting out the car

I have a weird issue. When I drive and stop and go at a red light or stop sign I have zero smoke. No smoke on cold starts, but smoke only shows when I let it idle for 10-15 mins. I get a big puff on takeoff, then it clears up and goes back to nothing. That doesn't sound like valve seals or piston rings.

Thanks 👌🏻

My golf 4 drinks pretty much oil and there is some white and blue smoke. Could it be this or mayby bad piston rings?

My civic 2004 gives blue smoke above 2500 rpm. It’s fine on cold start and no smoke on idle after 15 to 20mins. Is it piston rings or valve seals?

Personally I don’t like this style of video. Anyone making RU-vid with computer generated voices need to be banned

folks member oil is cheap engines are not

My diesel car morning time white smoke heavy ..after heating no problem.

Very nice

How,can i leave a mile of blinding smoke from my car on purpose just to fk with people?

0:13 brd rockars

I get white smoke when the ac is on ...

My valves tapping

Get out your wallet for this fix.

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