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Old 01-03-2009, 09:37 PM   #1 (permalink)
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Default Inertia fuel cut off switch

This came up in a conversation today and I cant seem to find an answer. A friend was driving home in the snow and drove over some big snow covered bump. His car (not a Subaru) died and he couldn't restart it so he had to walk home. Later he found out he'd tripped an inertia switch, making the car think it was in an accident, and cut off the fuel. A quick push of a reset button and he was on his way.

Does anyone know where they are in Outbacks, or if they even have one? If they do it would be good to know for those who drive often on rough roads.
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Old 01-03-2009, 09:45 PM   #2 (permalink)
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I have no idea if Subaru has them.

My '93 Thunderchicken had one in the trunk. I found that out as I slid around a corner and my sub box hit it...

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Old 01-03-2009, 10:24 PM   #3 (permalink)
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I think fords still use them, subaru never did.

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Old 01-03-2009, 10:42 PM   #4 (permalink)
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interesting question, i wonder if the subaru uses some ecu shutdown system triggered by the srs system.
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Old 01-03-2009, 10:45 PM   #5 (permalink)
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i know in 1998 they didnt



i drove this for another 25 days after the accident, and it never stalled when it was hit.


Most cars dont use them. I think ford did becuase they had some "fire" issues.


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Old 01-04-2009, 02:49 AM   #6 (permalink)
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i didn't think rear end collisions triggered the srs system ?

any car can have fire issues if a fuel line is compromised in an accident. actually a resetable impact fuel shutoff switch isn't a bad idea.
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Old 01-04-2009, 11:14 AM   #7 (permalink)
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Quote:
Originally posted by ETC
i didn't think rear end collisions triggered the srs system ?

any car can have fire issues if a fuel line is compromised in an accident. actually a resetable impact fuel shutoff switch isn't a bad idea.
They kept getting set off with pot holes.

Also they are fairly useless, otherwise they would be mandated. They do nothing about the pressurized gas already under the hood, and fires are (as news worthy as they are) from an accident rare. I think spontanious fires from fule leaks (bad hoses) are more common. As ling as the rubber hoses are intact (no dry rot) they chance of fire are greatly reduced. Gas lines are routed in particular ways to avoid fires in crashes.


I had a freind with a ford who every time he closed his trunk he set off the silly thing. That gets tired really quick (though it is funny to watch).


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Old 01-04-2009, 11:38 PM   #8 (permalink)
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of course if you are the one guy whose car does start on fire because of the pressurized gas already under the hood, it might be nice to know that the fuel pump isn't going to continue spraying gas on that fire ;]

i personally don't trust auto makers to do things because they are useful if it cuts in to their profit margin. if that theory were correct, they wouldn't spend the money they do on lobbyists to sideline federal mandates on their products.

the scene in fight club about the auto recalls seems more in line with the corporate mentality to me. "project the percentage of failures due to a known defect, multiply that times the average lawsuit payout, compare that to the cost of a recall, if a is less than b ... no recall".
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