2010 oil leak ...

[Hershey]

I'll possibly get to it after a few more oil changes with conventional engine oil . The 2010 seems to have stopped leaking with 2 conventinional O.C.s . Took it over 160 miles earlier in 90 degree heat . Did a quick check not long after we arrived home and nothing far as I can tell . Will do a more thorough inspection tomorrow . Keep our fingers crossed . So , 127.0.0.1 you'll need to be more patient .

[127.0.0.1]

Originally Posted by Hershey

I'll possibly get to it after a few more oil changes with conventional engine oil . The 2010 seems to have stopped leaking with 2 conventinional O.C.s . Took it over 160 miles earlier in 90 degree heat . Did a quick check not long after we arrived home and nothing far as I can tell . Will do a more thorough inspection tomorrow . Keep our fingers crossed . So , 127.0.0.1 you'll need to be more patient .

no, you can't fix an oil leak on a car by changing the oil, you can
only, perhaps, mask the problem. the problem remains

you need to repair a seal or gasket

there are no -liquid engine repair kits-

[Hershey]

we'll see .

[pennyracer]

drain plug is leaking is my guess did you put a new drain bolt gasket on the drain bolt after you drained the oil ? all stop leak products a a bigger problem after you use it just like 127.0.0.1 is saying i fix the problem never will use half assed stop leak products in anything motor or tansmission of mine good luck with your oil leak should be a simple fix is my guess

[Hershey]

yes , always use a washer for the drain plug . There are pics of the leak . It's the plastic head gasket . Not a simple fix , quite a task . Don't use stop leak products . Would most likely void the warranty . Have been doing oil changes and working on cars ( nothing major ) for over 25 years .

[pennyracer]

do you mean under the black motor cover ? that comes off with to nuts then the valve cover is exposed just seems odd a 2010 springing a leak so eary on but it can happen to any new car

[pennyracer]

looks like a valve cover leak maybe

[Hershey]

Nope . Head gasket . For 2008 and 2010 . Located the leak for both .

[127.0.0.1]

Originally Posted by Hershey

yes , always use a washer for the drain plug . There are pics of the leak . It's the plastic head gasket . Not a simple fix , quite a task . Don't use stop leak products . Would most likely void the warranty . Have been doing oil changes and working on cars ( nothing major ) for over 25 years .

I know just a wee bit about how gaskets function and you can't
fix a head gasket with prayer-in-a-can.

[1stToyota]

When did they start making plastic head gaskets? I've seen lots of plastic gaskets, including plastic intake gaskets, but that's a new one for me.

[Hershey]

Don't know . But I know hard black plastic when I see it .

[1stToyota]

Napa's import line (Altrom) gasket for our Yaris looks to be layered steel with a coating on it; pretty typical for most.



I don't think plastic, even if it's reinforced around the combustion areas would take the heat, but I've been wrong before.

[CTScott]

Originally Posted by 1stToyota

Napa's import line (Altrom) gasket for our Yaris looks to be layered steel with a coating on it; pretty typical for most.



I don't think plastic, even if it's reinforced around the combustion areas would take the heat, but I've been wrong before.

It is definitely an MLS (multi-layer steel) head gasket.

[Hershey]

Thanks . That's it . Looks to be a smooth plastic coating . The leak is from the lower right corner of the gasket close to the timing chain . The area circled in BLUE is where the leak comes from both '08 and 2010 . The exposed part of the gasket runs under the upper head . Wouldn't know it was steel by looking and touching it . I'll call someone to find out if it's all plastic or plastic coated steel or other coating.

[Hershey]

2010 still leaks . Checked it after 3 days and around 160 miles . Seems like when there's back pressure from within the engine when brake assist kicks in the leak(s) is/are worse ( 2008 included ) .

[Lucas13]

Originally Posted by Hershey

2010 still leaks . Checked it after 3 days and around 160 miles . Seems like when there's back pressure from within the engine when brake assist kicks in the leak(s) is/are worse ( 2008 included ) .

Hershey are you planning to get this fixed on both? I cleaned mine pretty well about 600 miles ago and I see no leaks, I'm still using Mobil 1 Synthetic.

[Hershey]

will give them a little more time .

[Hershey]

Originally Posted by Hershey

These are from the '08 which has 23,000+ miles and leaks more . The 2010 seems to have slowed down . 1st pic is where the oil leaks from the plastic head gasket above the large ledge and collects underneath it . Have found it to run along seal of timing chain cover and end up on the upper lip of the oil pan . Not all that significant . The 2nd pic is the top of the ledge . The area circled in RED is where the plastic head gasket is hidden under the upper head . The last pic is a close up of the plastic head gasket that leaks for both ( sorry a bit blurred ) . The '08 sedan gets wet with oil every 100 miles or more , while the 2010 hasn't with same miles as of recent.

Disregard the area in RED for post #5 and post #24 and #34 circled in BLUE . Found that not to be the source , the oil does collect there from the exposed head gasket (black ) circled in RED . This was in the early stages when hunting for the source of the oil leak .