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Old 11-13-2017, 05:20 PM   #1
morgandelia
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Exclamation Oil Leak Issues 2013 Impreza

Hey everyone!

Just wondering if anyone could help me out here. I have a 2013 Impreza with 82k miles on it with an oil leak and cracked timing cover.

Brought it to my local Subaru for an oil change. Upon pick up they tell me that I have a leak since there is oil all over my engine. The service desk tells me that they may need to change to gaskets and even an engine overhaul since they don't know where the leak is coming from. I ask isn't there a way to find out (knowing you can clean the engine and if needed put dye in it to find said leak). But they tell me no and priced all of this at $2300 but when I mentioned that they might not have to do all of the possible work and that sounds like the high end they tell me "no, that's the price" seems a little crazy to me that a car with only 82K on it would need an engine overhaul without even trying the simplest of tasks to find the issue.

I bring it to an other garage for a second option and he goes ahead and cleans my engine. Come to find out, I have a leak on the right side of my engine and a crack in the front timing cover. This mechanic tells me that with my miles and the year of my car that having a crack in that area seems crazy and suggests I contact Subaru for possible help as it seems like a defect.

Does anyone have an ideas on what could possibly be wrong with my Impreza?

Note: my car was part of the oil consumption issue before I purchased it as I am the 2nd owner

















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Last edited by morgandelia; 11-13-2017 at 08:34 PM. Reason: Fixed Pictures
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Old 11-13-2017, 05:44 PM   #2
Charlie-III
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Timing belt cover is NOT an oil seal on older models, yours IS a metal cover with seals. So, yes it may be leaking. There are a few oil seals inside the cover, cams, crank, oil pump.
Common outside are valve covers.
Not typical for them to be leaking at your age or miles.

If it is the cover, no, it's not a reason to do a rebuild, just a PITA to clean old sealant and reassemble with new sealant.

Depending on the leak, could be PS pump or lines, oil pressure switch.

I can't see your pictures, could just be my Frikkin iPad.

Last edited by Charlie-III; 12-19-2017 at 10:28 AM. Reason: Clarify, new engines are a sealed cover unlike older Subaru engines.
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Old 11-13-2017, 08:37 PM   #3
morgandelia
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It was actually the way I uploaded the pictures. My bad! They should be visible now.

Would all of those possible issues be considered an engine overhaul?

Since it isn't typical with a car my age/mileage, any thoughts on why this could have happened?
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Old 11-13-2017, 11:04 PM   #4
Charlie-III
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OK, pictures work.

Frankly, I would keep an eye on fluids, add as needed and watch for more leaks.

Right now, hard to tell since it was recently cleaned off.

No, I see no current reason for a rebuild....wait and watch.
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Old 11-14-2017, 11:32 AM   #5
morgandelia
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Yea that makes sense, I'll def keep an eye on the fluids.

Any ideas on what would cause that crack?
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Old 11-15-2017, 09:56 AM   #6
Charlie-III
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Quote:
Originally Posted by morgandelia View Post
Yea that makes sense, I'll def keep an eye on the fluids.

Any ideas on what would cause that crack?
Is this a 2.0L or 2.5L?

Isn't the 2.0 a timing chain with a metal timing cover? If so, it may be an oil bath for the chain so yes, it could be leaking some oil from the cover.
No clue on what caused the crack.
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Old 12-14-2017, 08:38 PM   #7
Montreal2017
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Default Oil Leak

Hi,

First off, I am still new on the forum and my car knowledge is not extensive but I have a question. I had my car in for maintenance about a month ago. Yesterday the check engine light went on and it turns out my car has an oil leak, oil dripped on a wire which corroded, broke and now some sensors are broken.

I am wondering how long it would take for a minor leak to break a wire - are a a couple of weeks normal?

Thanks!
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Old 12-15-2017, 02:34 AM   #8
Charlie-III
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Quote:
Originally Posted by Montreal2017 View Post
Hi,

First off, I am still new on the forum and my car knowledge is not extensive but I have a question. I had my car in for maintenance about a month ago. Yesterday the check engine light went on and it turns out my car has an oil leak, oil dripped on a wire which corroded, broke and now some sensors are broken.

I am wondering how long it would take for a minor leak to break a wire - are a a couple of weeks normal?

Thanks!
Oil drips really don't "corrode" wire, ever. Oil may make a plastic connector brittle over time, but no wire corrosion.
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Old 12-16-2017, 08:29 AM   #9
Elbert Bass
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Quote:
Originally Posted by Montreal2017 View Post
Hi,

First off, I am still new on the forum and my car knowledge is not extensive but I have a question. I had my car in for maintenance about a month ago. Yesterday the check engine light went on and it turns out my car has an oil leak, oil dripped on a wire which corroded, broke and now some sensors are broken.

I am wondering how long it would take for a minor leak to break a wire - are a a couple of weeks normal?

Thanks!
The wire is not broken or corroded. It is your air/fuel ratio sensor (front O2 sensor) has failed. The first couple years of FB engines (you have an FB20) were bad about timing chain cover and/or front cam cap leaking, particularly on the right bank. The oil would drip on to the A/F sensor wire and eventually contaminate the holes where the sensors reads atmospheric oxygen content. That kills the sensor.
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Old 12-18-2017, 01:59 PM   #10
Montreal2017
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Quote:
Originally Posted by Elbert Bass View Post
The wire is not broken or corroded. It is your air/fuel ratio sensor (front O2 sensor) has failed. The first couple years of FB engines (you have an FB20) were bad about timing chain cover and/or front cam cap leaking, particularly on the right bank. The oil would drip on to the A/F sensor wire and eventually contaminate the holes where the sensors reads atmospheric oxygen content. That kills the sensor.
thank you for the clarification and roughly how long does it take for that to happen after the leaking starts? Only wondering if that contamination and killing of sensor can happen within 4 weeks.

thanks.
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Old 12-19-2017, 10:25 AM   #11
Charlie-III
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Quote:
Originally Posted by Montreal2017 View Post
thank you for the clarification and roughly how long does it take for that to happen after the leaking starts? Only wondering if that contamination and killing of sensor can happen within 4 weeks.

thanks.
It's possible, the vent holes are small, wouldn't take much to get oil inside or clog the ports.
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Old 12-19-2017, 10:40 AM   #12
Elbert Bass
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Quote:
Originally Posted by Montreal2017 View Post
thank you for the clarification and roughly how long does it take for that to happen after the leaking starts? Only wondering if that contamination and killing of sensor can happen within 4 weeks.

thanks.
It is not time specific - usually doesn't occur until after trying to clean the crud off the timing cover or sensor. That washes crap into the holes for the atmospheric sample cell and contaminates the zirconium dioxide.
I have seen sensors with a 1/4" of dirt/oil on them which work fine until you try to clean them.
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Old 12-20-2017, 10:50 AM   #13
Montreal2017
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Originally Posted by Elbert Bass View Post
It is not time specific - usually doesn't occur until after trying to clean the crud off the timing cover or sensor. That washes crap into the holes for the atmospheric sample cell and contaminates the zirconium dioxide.
I have seen sensors with a 1/4" of dirt/oil on them which work fine until you try to clean them.
Ok. Thanks again for the clarification. Helped a lot.
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Old 12-22-2017, 04:18 AM   #14
CosmoTheCat
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That's a weird crack - looks like a bolt hole that was hydrolocked and the bolt driven home, or too long of a bolt bottomed out and blew out the back side. I'm not sure if there's even a bolt there, but I suppose something could have been protruding from the front of the engine when the cover was bolted down.
When you pull the timing cover, you'll find out though.

edit: I cannot see that damage happening except during reassembly. When it was subject to oil consumption repairs, did it get a short block, or just new rings? How long ago?
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