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jeansain

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Posts posted by jeansain

  1. to answer the question about miles i have 94000 on it not that much. most people tell me that subarus are good for atleast 150000 as long as i keep the oil up in it.plus i have done a bunch of new things to it about 27 hundred dollars worth im hoping it will last me for awhile also i need to no the symptoms of a bad fuel pump my car hesitates on acceleration exept when the car is cold

    At this mileage, I wouldn't think it's the piston rings, unless it's been overly abused, like running without oil.

  2. By an chance were you cleaning your car?????? You have accidently switched the parking lights on , the switch is on the centre steering wheel console between the turn signal switch and the wiper switch Just flip it the other way

     

    SEA#3

     

    I feel sooo stuuupid! That was it!!

     

    But I should say that this is a terrible design. I can easily see someone not even noticing that their lights are on and draining their battery. Or worse, thinking there is a short in the car and having a dishonest mechanic take advantage...

     

    What's the purpose of having an additional switch for the parking lights anyhow?

     

    Anyway, many thanks.

  3. Hi Everyone!

     

    Here in Canada, DRL are compulsory and since the early 90's all cars come with them. Mine comes from the US so it didn't have DRL originally. To make it Canadian legal, the importer rewired it so that when I turn off the engine the lights go off, even if the switch is on. So leaving the switch always on did the trick.

    Now all of a sudden today, the parking lights stay on all the time, even with the engine and the light switch off , unless I disconnect the battery.

     

    Anyone knows what went wrong?

     

    TIA

  4. What is the most likely cause of a check engine light, when engine performance and idling is OK?

     

    Happened just all of a sudden this morning when I went to start the car. The starter turned but the car the car didn't start at first. I then tried again and it fired after a brief hesitation but the check engine light stayed on.

     

    Now it starts fine but the CEL is still on. Any ideas?

  5. Well, say you're driving with one side of the car on ice and one side on pavement. If you floor it, both the tires on ice will start to spin. Since pretty much no power is going to the wheels on dry pavement, and the wheels on ice aren't getting any traction, the traction from the wheels on pavement will probably keep you going straight...
    There is no question that I feel safer driving the Sube in the snow than the Merc (we've already got enough of the white stuff here for me to have experimented with both). However I am not sure I agree with you on what you said. If I floor it on black ice with the Sube, I think I'd probably end up doing a 180...

     

    Hopefully I'll never have to find it out the hard way!icon9.gif

  6. If you don't have a limited slip in the axel differentials, then it will do the normal taking away power from the wheel with better traction and giving it to the spinning one manuever. Say your rear left wheel looses traction, it starts spinning. this caused the driveshaft speed to increase, but the front driveshaft speed stats the same because the front whells still have traction. this makes the center differential lock up and force the front driveshaft to turn at the same speed. this limits the amount one wheel can spin, and the car moves forward. now if a wheel on the front is slipping at the same time as one on the rear, both will spin at equal speed, but the car will go nowhere. Unless you have a limited slip in your axel differential. The best AWD would have three limited slips. One in the front, one in the center, and one in the rear differentials.
    The way you describe it (assuming I don't have LSD), if only one side of the vehicle hits some icy road while driving, while the other side stays on dry pavement, I could lose control of the vehicle! Whereas my traction control equipped, 2-wheel drive Mercedes would stand a better chance?!

    Please note that this scenario (called "black ice") is not at all far fetched. It happens quite often here in Canada during the winter.

  7. The MT's system. The fluid in the center diff is actually a silcone based fluid. There are clutch plates in there. Inner, and outer plates. When a speed difference occurs, this fluid heats up and causes the plates to lock up. The most torque split that can occur is 50/50...
    Thanks everyone for your posts!

     

    I am not worried about front to rear torque distribution as this has most to do with torque than safety, but about left-right split on the same axle. Indeed, if both wheels on the same axle are not turning at the same speed (in a straight line) you have a safety prob.

     

    When a wheel starts spinning, how does the other one - on the same axle - react? For the silcone based fluid to work here, it would have to be IMHO, not only in the center diff but also in each individual diff.

     

    If, as most say here, the system works great, there has to be something that makes it work!

     

    Josh: Does each diff have this silcone based fluid? If so, how quickly does it react (heat up and thicken) to transfer torque to the non-spinning wheel?

     

    TIA

  8. Manual-equipped Subarus use a viscous coupling, similar to a limited slip differential (and certain full-time 4WD transfer cases) where under normal, dry circumstances the torque is split 50/50 ...
    I have read that before.

     

    What I'd like to know is the following: when a wheel starts to spin, is traction transferred to the other wheel on the same axle, and if so, how is that done?

     

    For instance, in my 2-wheel-drive Mercedes with traction control, when one of the rear wheels starts spinning, the system can apply the brakes and/or back-off the throttle opening until both wheels turn at the same speed.

  9. I know that in a conventional 2-wheel-drive vehicle, most of the traction is transferred to the spinning wheel, in slippery conditions, which is why those are dangerous in snow/ice. Those with traction control balance traction between the 2 wheels when that happens, thereby making driving safer.

     

    In a MT AWD sube is traction 25% on all wheels at all times, including slippery conditions? If not, how does it work?

     

    Understanding how it works would let me know how confident I should be when driving my MT Impreza OBS in inclement weather.

     

    Thanks

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