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Old 02-11-2019, 01:57 PM   #1
3eagles
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Member#: 461742
Join Date: Jan 2017
Location: New Hampshire
Vehicle:
2007 Subaru Legacy

Question Subaru quit running

My 2007 Legacy stopped running. The crank shaft pulley had come loose but the engine was still running. After a short distance it started loosing power and got worse until the engine stopped. After that when I turned the ignition key to start nothing happened. Battery still had a charge but its like the start position is disabled. I'm hoping that it stopped due to problems with the crankshaft position sensor. Was this the "limp home" mode followed by a full shut down to protect the engine? There was no knocking noise from the engine just very rough running and slowing to a stop.
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Old 02-11-2019, 03:25 PM   #2
MortonCharbo
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Join Date: Jun 2018
Chapter/Region: BAIC
Location: California
Vehicle:
2002 WRX Wagon
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Might sound stupid but did you try putting the pulley back on and tightening it? Then turn the crank by hand with a breaker bar and see if it turns relatively smoothly without feeling like anything is hitting anything else.

Check the timing marks to see if they line up after a couple rotations. There's a possibility you jumped timing and/or the pulley wedged itself in there when it came off keeping the engine from rotating when you tried to start it again.

Good luck.
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Old 02-11-2019, 03:45 PM   #3
3eagles
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Not stupid at all. I tried to snug up the pulley enough to get back home and couldn't feel the keyway. I'll check the timing gear and see if the keyway came out. The engine failure seems like it could be crank sensor related. I'll also check the belt timing marks too. Hoping nothing serious happened. The starter thing is a bit weird. I know they have a limp home mode and may eventually stop running but its like the starter has been disabled. When I turn the key absolutely nothing happens. Not even a click. I was wondering if the computer did that? Biggest problem is we have a snow storm coming in and I'll have to work outside! Brrrrrrh.
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Old 02-25-2019, 03:58 PM   #4
subaru_sti293
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07 STI_Fpred_RaceC
STI_04 Winter Beater

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Quote:
Originally Posted by 3eagles View Post
Not stupid at all. I tried to snug up the pulley enough to get back home and couldn't feel the keyway. I'll check the timing gear and see if the keyway came out. The engine failure seems like it could be crank sensor related. I'll also check the belt timing marks too. Hoping nothing serious happened. The starter thing is a bit weird. I know they have a limp home mode and may eventually stop running but its like the starter has been disabled. When I turn the key absolutely nothing happens. Not even a click. I was wondering if the computer did that? Biggest problem is we have a snow storm coming in and I'll have to work outside! Brrrrrrh.
To have a peace of mind better to buy a jdm used starter with low km and check ur ignition fuse 15 blue color as well.
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Old 02-25-2019, 04:24 PM   #5
3eagles
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Member#: 461742
Join Date: Jan 2017
Location: New Hampshire
Vehicle:
2007 Subaru Legacy

Default Problem solved

I apparently got lucky. Followed suggestions here and put the battery on a charger overnight. It cranks fine now. I did have to buy a new crank pulley. The other one was loose long enough that it machined away the inside of the pulley and the key had nothing to engage. New pulley and this time I managed to get it torqued to 135lbs. I think that will stay on this time.
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