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Subaru Legacy/Outback "Check Engine" Light Problems



  • xwesxxwesx Fairbanks, AlaskaPosts: 11,000
    Aye; I can commiserate on that one. I suspect many of us have been there over the years. My only sidewall loss in four Subaru vehicles cost me $900 last summer to put a new set of tires on it. But, that's the breaks, too. Sidewall cuts are pretty rare in normal road use, so that's just plain bad luck having three over such a short period of time.
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • bob192bob192 Posts: 19
    I had a left rear tire damaged and needed to replace it. we put two new tires on the front and moved the front two to the rear. That was nearly a year ago. No change in handling or winter driving.
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,000
    edited February 2013
    Whether it impacts your car's AWD system adversely all depends on how much wear difference there is between the two pair of tires. By replacing a pair, you eliminated the most noticeable issue, which would be a rotational difference between the tires on the same axle, but the two axles would still rotate at slightly different speeds, which then puts stress on the center differential to compensate. You won't necessarily feel it, but the strain will do its damage over time.

    As long as the tread depth on the tires is within 2/32's of the same, it shouldn't be an issue at all.

    Unfortunately, that wasn't the case for my car, plus I wasn't going to pay the money the local shops wanted for replacing the stock tire. Those things are junk, anyway. So, I spent $900 on a new and far, far better set. The other option was $350, and that was just a single tire. I don't feel bad about the new set; I just wasn't planning to buy it for another couple of years!
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • I shut the engine off yesterday and sat in my car for no more than 5 minutes listening to the radio. All of the sudden the radio turned off, alerted, I tried to turn the engine on and the battery was dead. I had all accessories available, it cranked weakly a few times and then stopped. I went inside and made a phone call for help. Maybe 10 minutes passed, and I cranked it and it started right away. Bad battery? Alternator? Sensor? I can't find anything conclusive. And "YES" the check engine light has come on intermittently for a week prior.
  • ateixeiraateixeira Posts: 72,587
    A battery can recover slightly, but find out why it was discharged in the first place.

    If it starts again after a long drive, the alternator is working.

    How old is it? 5+ years and I would no longer trust the battery. I replaced the one in my van at Costco for less than $80. Piece of mind well worth it.
  • xwesxxwesx Fairbanks, AlaskaPosts: 11,000
    What car do you have? The issue may be poor grounding rather than a problem with the battery or the alternator. That would make perfect sense if you were experiencing what seemed like a weak battery, then it seemed to work fine shortly after.
    2014 Audi Q7 TDI, 2008 and 2013 Subaru Forester(s), 1969 Chevrolet C20 Pickup, 1969 Ford Econoline 100, 1976 Ford F250 Pickup
  • mcharliemcharlie Posts: 22
    That's true...earlier Subaru's were notorious for having ground issues.
  • fibber2fibber2 Mid Hudson Valley, NYPosts: 3,777
    Chicken & Egg issue.... A false CEL and erroneous fault code could be logged because of an intermittent electrical issue such as a bad ground that glitches the ECU. Or, a real code that could help lead us to the actual source of the non-start condition could be present. Get it read out and lets see if it tells us anything useful.
  • winter2winter2 Posts: 1,801
    This morning it was announced that Subaru was recalling cars with a starting problem covering several model years through 2013.

    Upon doing some research, I discovered that the recall was limited to those cars having the factory remote start capability. If the FOB gets damaged, it could start the car without you even knowing it. My Subaru does not have remote start.
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