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Old 11-01-2013, 06:59 PM   #1 (permalink)
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Default Oil light on

I have a 2012 forester with 10000 miles. My wife was driving it and the oil light came on. I checked the oil and it looks over full. The dealer is the one that changed it. Would it being over full cause the light to come on? If it is. Why would it take more than two weeks of driving for it to come on? I'm taking t to the dealer tomorrow. This will be the 4th it'll be brought in for warranty work.


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Old 11-01-2013, 08:19 PM   #2 (permalink)
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What color was the light?

Are you sure it was the oil light? Did it come on while after driving? Or did it come on at startup and then go away?
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Old 11-02-2013, 06:06 AM   #3 (permalink)
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Oil light on-imageuploadedbyautoguide1383401129.492645.jpg
It was red. It came on after driving for a few minutes. And it stayed on the whole time she was driving.


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Old 11-02-2013, 06:14 AM   #4 (permalink)
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Exclamation

That particular indicator is supposed to mean low oil pressure (different from low oil level; ref 2011 OM pg 3-17). If the oil level is correct, it could be a bad oil pump (= low pressure) or a bad pressure sender. Note that Subaru cautions against operating the engine when this indicator is on (ref OM pg 3-18)

No matter what, it's something for the dealer to address, probably under warranty.

Best of luck!
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Old 11-02-2013, 06:17 AM   #5 (permalink)
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If the oil pump were bad, you'd probably be hearing some really bad engine sounds by now. It's probably the pressure sensor.

Yup, high-tail it to the dealer.
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Old 11-02-2013, 06:36 AM   #6 (permalink)
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Dipsticks can be awkward to read at times . Oil residue sits on the inside of the tube and makes you think the level is higher than it really is . Withdraw the stick , wipe it then insert and withdraw again . Look at both sides of the stick . You'll probably see different levels on the two sides .
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Old 11-02-2013, 07:39 AM   #7 (permalink)
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Drove it this morning and the light wasnt on. So I can't take it to the dealer until it's back on.


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Old 11-02-2013, 08:43 AM   #8 (permalink)
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looks very dim in the picture- suggest sender or wiring issue.
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Old 11-02-2013, 10:40 AM   #9 (permalink)
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Quote:
Originally Posted by dpm View Post
looks very dim in the picture- suggest sender or wiring issue.
Good point!

I took a look at my 2012's schematic, which is very simple and fairly old school: +12 through a fuse to the OP indicator (LED) to the OP switch to common. A bad/dirty/sticking OP switch could indeed be a problem.

However, since the Forester in question is either a 2011 (avatar description) or a 2012 (OP description), it probably has an early FB25 engine. Since some of these are known to be oil burners, it could be low oil, although the engine would probably be rattling a bit at this point.

Double-checking for a good read on the oil dipstick when the engine is cold would be a good idea.

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Old 11-02-2013, 04:55 PM   #10 (permalink)
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This us just reinforcing my thoughts on never buying a Subaru ever again. I checked last night when it was cold. And it was consistently high. Drove it around all day and the light stayed off. It must be a connection.


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Old 11-02-2013, 05:01 PM   #11 (permalink)
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Quote:
Originally Posted by Flighht2k5 View Post
This us just reinforcing my thoughts on never buying a Subaru ever again. I checked last night when it was cold. And it was consistently high. Drove it around all day and the light stayed off. It must be a connection.
Here, here. Subarus have their problems, for sure. But so does every other vehicle made. At least the Subaru problems are really unique - interesting - challenging. In balance, Subarus are very reliable - built like tanks.

Maybe you got one of those rare Subarus that came with a Lucas wiring harness?
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Old 11-02-2013, 05:17 PM   #12 (permalink)
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Quote:
Originally Posted by dave5358 View Post
...
Maybe you got one of those rare Subarus that came with a Lucas wiring harness?
You know there is a refill kit available for those with Lucas harnesses that have a harness that has let all its smoke out. Unfortunately I have found out it is only for Whitworth systems not metric versions

It's always fun to watch the smoke come out, but why does it have to be so hard to put it back in
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Old 11-02-2013, 08:38 PM   #13 (permalink)
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Nope just a typical Subaru. My land cruiser with 260000 miles creaks and rattles less than this thing does.


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Old 11-03-2013, 03:56 AM   #14 (permalink)
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Quote:
It must be a connection.
Does the oil pressure indicator turn on briefly when you start the car? If so, the wiring's most likely OK, as the OP indicator circuit is a series string.

Do you have basic mechanical skills and tools? If so, you might consider replacing the OP switch. It's located on the front of the FB25 engine, just below the top-mounted engine oil filter and covered with a black rubber boot. Older model OP switches are ~$20; I don't know about the OP switch for the 2011+ FB25 engine.

HTH,
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Old 11-03-2013, 04:49 AM   #15 (permalink)
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Quote:
Originally Posted by crewzer View Post
Does the oil pressure indicator turn on briefly when you start the car? If so, the wiring's most likely OK, as the OP indicator circuit is a series string.

Do you have basic mechanical skills and tools? If so, you might consider replacing the OP switch. It's located on the front of the FB25 engine, just below the top-mounted engine oil filter and covered with a black rubber boot. Older model OP switches are ~$20; I don't know about the OP switch for the 2011+ FB25 engine.

HTH,
Jim / crewzer
When my wife was driving it, the light was on the while time. She drive only 6 mikes or so. I have mechanical skills, but that's what the warranty is for. They can replace it.


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