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Old 10-24-2004, 10:27 PM   #1
Sean
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Rally Stuff Rally car won't start when high centered on snowbank at weird angle...

Car: MY96 Impreza 2.2 L AWD

So it's taken me almost a year to ask this question. Back in January/February during the ice racing season I got high centered on a snowbank. All four wheels were off the ground with the car at a diagonal angle (right rear tire almost touching the ground with the left front tire about two feet in the air).

Turning the key turned on the fuel pump (I could hear it) and cranked the motor, but the motor wouldn't fire. We tried for about 10 minutes to get the car started until we gave up and my crew towed it off the snowbank.

The minute all four wheels touched the ground, I turned the key and she fired right up. Any clues as to what would cause this? I didn't think we had any sort of fuel cutoff on our cars.

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Old 10-24-2004, 10:54 PM   #2
tooocool49723
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how much fuel was in the tank? What i'm guessing is that when the car was at that angle, the fuel pickup was in open air instead of in the actual fuel.

edit: (and now that I look at your username, thanks for putting up Furious George, lol)

Last edited by tooocool49723; 10-24-2004 at 11:02 PM.
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Old 10-24-2004, 10:59 PM   #3
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that's my guess too......oh and TTIWWP
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Old 10-24-2004, 11:12 PM   #4
Sean
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Hrm...fuel may be an issue, but I'm pretty sure I had over 3/4 tank. I filled up before driving the 60 miles to the race site.

Also, one more bit of info, the car continued to idle for about 5 minutes on top of the snowbank before we shut down the motor to start digging. I was both feet in when I hit the snowbank so the motor never stalled.

tooocool49723: Furious George rules. I love pachinko!

rabitnutz:



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Old 10-25-2004, 12:40 AM   #5
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a very non-knowlegfilled guess...but maybe they have a sensor in the car to not let it start if all 4 wheels arent on the ground...such scenarios could include: car not on a flatbed correctly so its unable to start so it wont fall off....or for rally purposes it could be that if the car is flipped...it cannot be started again...
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Old 10-25-2004, 12:40 AM   #6
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Rollover valve?

That's a friggin cool pic!!!

Jay Storm
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Old 10-25-2004, 12:44 AM   #7
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thank you for the pic, i love it !
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Old 10-25-2004, 08:32 AM   #8
orndog
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Maybe you were pinching a rubber fuel line?
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Old 10-25-2004, 08:58 AM   #9
OBS Fan
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Your electrical system wasn't grounded with all four wheels off the ground?

That's my guess, anyway.

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Old 10-25-2004, 09:03 AM   #10
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Your electrical system isnt' grounded with all 4 wheels on the ground. It grounds to itself.

Rubber fuel line is also a good guess, but I dont know how many rubber fuel lines are under the car. I was under the imression that most of the fuel lines were metal. (although i could be wrong)
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Old 10-25-2004, 09:34 AM   #11
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Quote:
Originally Posted by tooocool49723
Your electrical system isnt' grounded with all 4 wheels on the ground. It grounds to itself.

Rubber fuel line is also a good guess, but I dont know how many rubber fuel lines are under the car. I was under the imression that most of the fuel lines were metal. (although i could be wrong)
I'd be scared if they were rubber under there. But thats also what I first thought when I read the original post.
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Old 10-25-2004, 11:23 AM   #12
Sean
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Quote:
Originally Posted by orndog
Maybe you were pinching a rubber fuel line?
Good guess, but all fuel and brake lines from the firewall back are metal and run inside the car along the base of the doors. Imprezas are built from the ground up as rally cars so nothing important is under the car.

Regarding a fuel cutoff of some sort, also a good guess, but I'm looking for definite answers, not guesses.

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Old 10-25-2004, 07:25 PM   #13
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Was the trunkmonkey asleep?
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Old 10-25-2004, 08:38 PM   #14
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Quote:
Originally Posted by Sean
I didn't think we had any sort of fuel cutoff on our cars.
Quote:
Originally Posted by Sean
Regarding a fuel cutoff of some sort, also a good guess
Um, who built your car? Ask them.

If you built it, ask yourself if you have a fuel cut off valve. If you don't know, check your factory service manual. If it was a 95, I would recommend you look in the "Fuel Systems" section, and perhaps peruse Section 2.9, "Roll Over Valve", which shows the roll over valve, inline near the tank. But as you have a 96, I can't really help you.

If you don't have a FSM, you can download it from techinfo.subaru.com.

Quote:
I'm looking for definite answers, not guesses.
From the INTERNET? Dude, are you serious?

*looks around*
*mystified* Where am I?



Cheers,
Anders
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Old 10-25-2004, 08:44 PM   #15
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Your definate answer is fuel starvation plain and simple.

Jay
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Old 10-25-2004, 09:11 PM   #16
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There maybe enough fuel in the lines to run the car for a few minutes...maybe up to five minutes?? The reason I know is a girlfriend of mine put diesel in her car (unleaded) and it drove for about 5 minutes before it crapped out when it began burining the diesel. This may explain it ran for a bit.

Then the pick up was exposed and was not getting fuel.
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Old 10-25-2004, 10:37 PM   #17
Sean
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Anders: Smartass. Yeah, I'll dig through my FSM, but it's a horrible mess. A couple thousand unlabeled unindexed PDFs with names like S939372893748.pdf. It'll take me a while to find the fuel section. But yeah, I built the car, and I didn't add an extra fuel cutoff. If there's a stock one, that's all I have to worry about.

McDade: Yeah, I know what the problem is (fuel starvation), I'm just trying to figure out why I had fuel starvation. I've had the car at lots of odd angles before and have been stuck in snowbanks at steeper angles for longer periods of time without a problem.

Scooby Blue: The motor in the 2.2 L runs for 10 to 15 seconds after cutting fuel. When I installed my fuel sample port and changed my fuel filter I unhooked the fuel pump while the car was running to suck all the fuel out of the lines and eliminate pressure.

Maybe I accidentally hit the Lose WRC button.

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Old 10-25-2004, 10:58 PM   #18
tooocool49723
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Yeah, dont you just hate that button!!!

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Old 10-25-2004, 11:12 PM   #19
anders8
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Quote:
Originally Posted by Sean
Anders: Smartass.
But didn't you know that before I even started???? *grin*

Quote:
I'll dig through my FSM, but it's a horrible mess. A couple thousand unlabeled unindexed PDFs with names like S939372893748.pdf.
I spent several hours one day organizing and sectioning mine. You can see that doing so has allowed me to quickly poke fun at other Subaru owners. Definitely worthwhile.



Anders
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Old 10-25-2004, 11:12 PM   #20
Storm
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There are short sections of rubber fuel line under the car. They connect the tank lines to the lines that run up front. They aren't long, and i suppose if you were hung up on the drivers side rear, you could've pinched a line. But I stand by my original thought of the rollover valve.

Jay Storm
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