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Old 10-18-2003, 02:48 PM   #1
cloudbrk
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Member#: 44557
Join Date: Oct 2003
Chapter/Region: MAIC
Location: Virginia Beach, VA
Vehicle:
05 Legacy OB Wagon
Willow Green Opal

Default Mystery Plug Under the Hood...to me anyways.

Hello all! THere is a plug on the passenger side up near the firewall of my 98 Legacy OUtback DOHC that has FWD marked on it. Nothing is plugged into it though. Looks sort of like a fuse would fit in there. I am wondering if this is where you put a jumper in to isolate the car to FWD only ie 2wd. Anyone know?
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Old 10-18-2003, 03:02 PM   #2
THAWA
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Location: Nor-Cal Ghetto Garage
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3 Boxers 2 AWD
3 turbo 1 6cyl & a 13BT

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You are correct, you put a fuse in there and it makes the car fwd, but subaru doesnt recommend using this all the time, only when you need to tow it or soemthing, I don't quite remember
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Old 10-18-2003, 06:18 PM   #3
cloudbrk
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Willow Green Opal

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Anyone know any more about this? What amp fuse? Anything? Will it damage anything if I drive it like that?
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Old 10-18-2003, 07:35 PM   #4
NiTRoN
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Location: Cleveland, Ohio
Vehicle:
2000 Legacy GT (BE)
over 250,000 Miles

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it's 15amp standard fuse.. and no, don't drive for long on FWD mode.. also in your dash light should show (FWD).. that basicly is for emergencies and when your using spare tire when you get flat. As you know your spare tire is different diameter.. and difference can't be more than 1/4 of inch in diamater between tires.. otherwise your rear and front LSD might get damages.. so that's why subaru implemeted that so you can put your car only in Front Wheel Drive mode..

Hope this will help..
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Old 10-18-2003, 07:37 PM   #5
sybir
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Location: Don of the Wagon Mafia
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05 FXT/01 OB/97 OB
Yes.

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BTW, your manual should explain the proper operation. Any fuse should work, from a 5 amp to a 30 amp.

I'll tell you, you don't realize how much torque the 2.5 makes down low until you put it in FWD and floor it from a stop, I get unbelievable wheelspin and torque steer...

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Old 10-19-2003, 12:48 AM   #6
Acejam2k
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Crystal Gray Metallic

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Quote:
Originally posted by sybir
BTW, your manual should explain the proper operation. Any fuse should work, from a 5 amp to a 30 amp.

I'll tell you, you don't realize how much torque the 2.5 makes down low until you put it in FWD and floor it from a stop, I get unbelievable wheelspin and torque steer...

Is this bad to do performance driving for likr 20 min in FWD mode?
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Old 10-19-2003, 02:31 AM   #7
sybir
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Yes.

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Probably. It's not meant to be run like that constantly, or under severe stress, since it's basically electronically shutting downt he center diff. the diff can still heat up, and the front drivetrain is meant to kick power rearwards instead fo spinning and axlehopping.

So I wouldn't do it, I was just trying it as a goof for about 15 seconds.....
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Old 10-19-2003, 01:22 PM   #8
Acejam2k
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2007 STI
Crystal Gray Metallic

Default

Quote:
Originally posted by sybir
Probably. It's not meant to be run like that constantly, or under severe stress, since it's basically electronically shutting downt he center diff. the diff can still heat up, and the front drivetrain is meant to kick power rearwards instead fo spinning and axlehopping.

So I wouldn't do it, I was just trying it as a goof for about 15 seconds.....

Would It hurt if I were to put it in FWD, do a burnout, then put it back into AWD? I just wanna see my legacy get some wheelspin on some tar for once...
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Old 10-20-2003, 12:23 PM   #9
subster
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Join Date: Jul 2003
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Location: Minneapolis, MN
Vehicle:
2008 2000 2.5 RS
1995 SVX

Unhappy I did it.

I drove to and from South Dakota (From Twin Cities, MN) in FWD with that fuse in. I did it to get better gas mileage. I also changed my front and rear diff fluid before the trip. Then a week later I was at the cabin in Wisconsin and started up the car after it sat overnight and this big plume of smoke came out of the back. I could smell diff fluid (very smelly stuff) and so I shut off the car and checked for leaks. Apparently there's a common problem if you don't tighten the front fluid drain valve enough...it leaks on to a 'Y' point on the exhaust sytem. That's right where there's a connection from a header to the downpipe and so it leaked into the pipe, burned up and made smoke. I thought it was becase of driving it in FWD for so long that there was too much pressure on the front diff so it caused it to leak. Either way I tightened it up, added more gear oil and every thing was fine. I don't know the exact cause but ever since I have kept it in good ole power robbing but safe AWD! I was going to keep it in FWD for the summer and switch it in the winter but that obviously didn't pan out. I did however have a lot of fun squeekin away from stops. In the rain, the traction was poor. I did get new tires (Sumitomo HTR 200's I think) and the wet traction was better but the wheels still spun.
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