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Old 04-26-2018, 05:27 PM   #1
MadseasoN
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Oil Seepage?

So I bought this Toyota w/25,000 miles on the odometer. Couple hundred miles later I noticed a thin line of oil on the head. Wipe it off and within 500 miles it's back. Is the head gasket seeping oil? No smoke and the car runs fine. No oil in the coolant.
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Old 04-26-2018, 05:40 PM   #2
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It's your valve cover gasket. First thing I'd do is tighten all the valve cover bolts a little bit..don't go nuts. Then go to a car wash and spray off the engine. Check for seepage after. What year is the vehicle and has it been parked for awhile?
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Old 04-26-2018, 05:42 PM   #3
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What year Toyota? And that is not the head gasket. The head gasket would be fitted below the exhaust and intake manifold. Looks more like exhaust soot than engine oil. Are you consuming oil? Get some UV tracer dye and dump that in your engine mixed with a quart of oil. Check it with a UV light. If you are in the cypress area I can take a look at it for you.
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Old 04-26-2018, 05:43 PM   #4
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Quote:
Originally Posted by Kevin7909 View Post
It's your valve cover gasket. First thing I'd do is tighten all the valve cover bolts a little bit..don't go nuts. Then go to a car wash and spray off the engine. Check for seepage after. What year is the vehicle and has it been parked for awhile?
It doesnít take much to snap Toyota valve cover bolts as they are shanked bolts.
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Old 04-26-2018, 05:46 PM   #5
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Agree either soot from manifold seepage from valve cover, or likely a mix of both.
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Old 04-26-2018, 05:46 PM   #6
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Quote:
Originally Posted by Kevin7909 View Post
It's your valve cover gasket. First thing I'd do is tighten all the valve cover bolts a little bit..don't go nuts. Then go to a car wash and spray off the engine. Check for seepage after. What year is the vehicle and has it been parked for awhile?
I thought the valve cover was the upper most piece (ends right under the plastic cover). It's a 2015. Driven about 1000 miles per month. Regular oil changes. I've had it for 5K miles.
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Old 04-26-2018, 05:49 PM   #7
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Quote:
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It doesnít take much to snap Toyota valve cover bolts as they are shanked bolts.
Agreed, hence my wording. When I changed the gaskets on my 2jz even though I tightened every bolt to spec in the correct pattern I had very similar looking seepage. Slightly tighter on the valve cover bolts and seepage disappeared.

But if the OP can go to you to look at it that would for sure be best to avoid guessing.
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Old 04-26-2018, 05:51 PM   #8
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Or itís the silicone bead that makes the gasket between the head and the cam housing.
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Old 04-26-2018, 05:54 PM   #9
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If you are still under warranty take it back to Toyota. Not the first Toyota to leak oil. They have had big issues over the years with oil consumption and oil leaks.
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Old 04-26-2018, 05:54 PM   #10
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Valve cover
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Old 04-26-2018, 05:54 PM   #11
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Quote:
Originally Posted by MadseasoN View Post
I thought the valve cover was the upper most piece (ends right under the plastic cover). It's a 2015. Driven about 1000 miles per month. Regular oil changes. I've had it for 5K miles.
You are correct, it is the uppermost piece, but oil seepage is a funny thing. It's likely so hot and so little oil seeping that it looks clear to the naked eye. Enough of it pools and possibly exhaust soot or just normal grime and it fools you into thinking it's the head gasket. Highly unlikely.

Accept honda's offer and let him take a look at it. Its cheap insurance.
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Old 04-26-2018, 05:58 PM   #12
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Quote:
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Or itís the silicone bead that makes the gasket between the head and the cam housing.
Excellent pic. I think you're right.

Naw, they're gonna have to fix this. It's still under Toyota Certified warranty. Wonder if it falls under powertrain warranty too.
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Old 04-26-2018, 05:59 PM   #13
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Quote:
Originally Posted by MadseasoN View Post
Excellent pic. I think you're right.

Naw, they're gonna have to fix this. It's still under Toyota Certified warranty. Wonder if it falls under powertrain warranty too.
It will. You should have 60months or 60k under powertrain.
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Old 04-26-2018, 06:09 PM   #14
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It will. You should have 60months or 60k under powertrain.
So the head has to be removed to fix this?
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Old 04-26-2018, 06:16 PM   #15
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So the head has to be removed to fix this?
No. Just the engine will probably come out of the car. Have to pull the timing chain which entails pulling the timing cover off and removing the cams.
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Old 04-27-2018, 07:44 AM   #16
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One thing I like to check when I see an oil leak is the PCV valve and hose. Any kind of obstruction or leak will cause crankcase pressure build up and an oil leak.
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Old 04-30-2018, 07:25 AM   #17
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Took it back to the dealer. They washed the engine and want me to bring it back in a week or so.

Basically we're in the "the customer doesn't know what he's talking about" stage.
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Old 04-30-2018, 10:14 AM   #18
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Took it back to the dealer. They washed the engine and want me to bring it back in a week or so.

Basically we're in the "the customer doesn't know what he's talking about" stage.
Ahh yes, the classic dealer wants to try to wait you out of your warranty. I had to fight Toyota over my torque converter and window seals.
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Old 04-30-2018, 05:01 PM   #19
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Ahh yes, the classic dealer wants to try to wait you out of your warranty. I had to fight Toyota over my torque converter and window seals.
I assumed that Toyota paid them for warranty work. I'm betting they don't get the full rate though.
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Old 05-21-2018, 08:50 AM   #20
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Update:
Apparently oil was seeping out of the valve cover gasket and running down the cam housing. Dealer replaced the valve cover gasket. Seems to have fixed the problem.

Unusual for a car with 25K miles.
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