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Subaru B9 Tribeca Engine Problems



  • "...

    If you thought you were getting a luxury car, Subaru isn't it. Look at Audi, Lexus, MB, BMW if you are looking for that.... "

    Don't think that LUXURY is the magic word to get your car to start the engine quitely. My 14 years old toyota started quiter than my new Tribeca. Now just hope that noise won't get much worse down the road, or I might just trade in to get a Acura or Lexus (right), or ...
  • paisanpaisan Posts: 21,181
    Also probably has an exhaust pipe the size of a dime and about 125hp.....

  • It's been six weeks now and I still think it revs too high at the initial morning startup. FYI, after the initial startup of the day and the engine is warm, my other startups throughout the day never rev that high. If what other people are saying is true, then every startup, regardless of engine temperature should rev to that 1800 or so rpm. In fact, this is not the case. So I repeat my original question: is there a way for the service department at Subaru to lower or manually adjust that initial morning startup?
  • terry92270terry92270 Posts: 1,247
    Engine temperature dependent.
  • paisanpaisan Posts: 21,181
    However, after the intial startup, the engine will still be warm. Try doing it while the engine is dead cold, ie: Turn it on, let it rev to 1800, turn it off, and then again. See if does it. Any startup after the first one after it's warmed up, will have a warmer intake temp, which is what effects that idle. 1800 is a bit high though 1200-1300 until warm is probably better. Even on my V8 Armada it revs to over 1000 RPMs until warm.

  • Interesting thought, but doesn't sound too good for the engine.
  • paisanpaisan Posts: 21,181
    Actually it's perfectly normal to have a raised idle when cold. Engines are built to operate at a particular temp range, too cold can be just as bad as running too hot. I've seen this in high performance engines in boats as well on the newer EFI engines they have to run a 140-150 degree t-stat whereas on the older carb motors they run 120 degree ones.

  • tls8thtls8th Posts: 27
    I have 15,000 miles on my B9 while driving I-64 went to climb a slight hill while accelerating vehicle started to miss check engine light started blinking and traction control light came on. Bright sunny dry day 3/4 tank fuel only run premium fuel. But have owned car since 8/05 drive only on trips.
  • subearusubearu Posts: 3,613
    A blinking CEL indicates an active misfire in one or more cylinders. Possibly bad fuel, bad plug or wire, bad injector, clogged fuel filter. If it stopped misfiring, usually the CEL will still say on solid and eventually clear after a couple days if the condition doesn't exist anymore.

    This and more about both lights are in your owners manual, BTW.

  • tls8thtls8th Posts: 27
    Unfortanately I'm now 350 miles from my B9 had to rent a car to get home vehicle sitting at dealer waiting till Tuesday morning to be looked at. Vehicle does sit when not traveling, I also shouldn't top off fuel at 1/2 to 3/4 tank I;m thinking bad fuel. exhaust has smeeled like varnish lately.
  • paisanpaisan Posts: 21,181
    Sounds like bad fuel to me.

  • tls8thtls8th Posts: 27
    Staunton Subaru called this morning turns out fuel is fine but when I last had my oil changed at my home dealer they didn't add enough oil. Staunton Subaru says it won't even read on the dipstick. Had oil changed about 3,000 miles ago. They are waiting to here back from the regional rep, they tell me either Subaru will take care of it or my local dealer will.
  • tls8thtls8th Posts: 27
    Check my vehicle records my B9 has 15600 when it broke down with little to no oil, last changed at dealer 14240 miles.
  • ateixeiraateixeira Posts: 72,587
    Cool, so you're definitely covered. Keep those records just in case something creeps up down the road.

  • tobinatortobinator Posts: 1
    My wife, dog, and I are in the process of driving from North Carolina to Utah and my 2007 Tribeca broke down in Kentucky and was towed to a dealer in Illinois. We are currently stranded here awaiting repairs.

    We left on Thursday and put 8-9 driving hours in without incident. Friday we started up again and were able to put about 4 hours on the road before our problem occurred. We stopped for fuel, car was down to about 3 gallons left in tank. Filled up with premium and approximately one mile from the gas station (BP) about a 1/4 mile onto the freeway the Traction Control Disabled light and Check Engine lights came on and the engine started to stall. I pulled over and the engine died. Would not restart.

    Subaru Roadside Service sent a tow truck and we were towed 54 miles to the nearest dealer. Got there 10 minutes before they closed and had to work to get anyone to take a look at the vehicle before Monday (when they said they would be able to get to us).

    Scan tool showed misfire on cylinders 5 & 6. They were able to get the engine to start and limped it into the shop. Everyone's assumption was bad fuel due to the timing. Saturday they drained the fuel and didn't find any water or debris like we thought may occur, also tested to ensure it was not E85. They put in new fuel and started the car. It seemed to idle fine but the engine misfires under load, now cylinders 2, 5 & 6. They are going to look further tomorrow (Monday) and see where the diagnosis leads.

    I am guessing a bad ignition coil now that fuel has apparently been ruled out. Any ideas? Anyone heard of anything like this before?

    This is my sixth Subaru and I worked at a large Subaru dealer for 9 years.
  • ateixeiraateixeira Posts: 72,587
    The odd part is that it stalled so soon after the new tank of gas. It just *HAD* to be the fuel.

    I know they use E10 around most places, maybe you did get a poorly mixed batch?

    Problem is, the ECU probably tried to adjust to that bad fuel, and now with a new tank it's probably trying to re-adjust. I'd reset it by pulling the battery, but it's in the hands of the techs and I'm sure they'll try that.

    Hope this gets sorted out soon, sorry 'bout your trip interruption! :sick:
  • texan5texan5 Posts: 23
    AC compressor is under the hood, right?

    The bolts that were used to put the AC compressor together on my BRAND NEW car are completely rusted -- see pictures below.

    Is it just me or do others out there think that rust in the engine compartment of a brand new car is completely unacceptable?

    p.s Moderator, since according to the dealer, "they all do that", can the rust issue be made a separate topic?
  • xwesxxwesx Fairbanks, AlaskaPosts: 8,268
    Well, I would be more than a bit put off by that. I had 220,000 miles on my '96 Outback and there was not a speck of rust in the engine compartment other than the battery's tie down rod (due to corrosion over the years). Granted, any East Coast Subaru one sees on eBay is going to have a fair bit of rust on the engine guards, PS pump, etc., but those cars saw road use - they were not fresh of the lot!

    Seems reasonable to me to get that cleaned up as rust only gets worse and you certainly do not want the bolts snapping the first time it is taken apart for a timing belt change... :sick:
  • ateixeiraateixeira Posts: 72,587
    Very strange, I wonder if anyone else can check to see if they observe the same thing?

    Having said that, it's just surface rust on a large bolt, so I doubt it'll ever matter beyond the ugly aesthetics.
  • I just checked the bolts and you are correct, there is some surface rust on a few of the bolts. Next time I bring it in, I'll show the service tech.
This discussion has been closed.