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#1 |
Chief title editor
Join Date: Oct 2003
Posts: 26,599
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Outback out
2013 Outback
Running fine until it wasn't yesterday. Wife texts me midday that it's hard to start, idles rough when it does and nearly stalls when leaving from a stop. Runs fine at speed. Hard start = cranking fine, just not catching for a while. Quick internet search finds a common Subaru issue with forgetting how to idle with a 45 minute process to get it to relearn. She doesn't have time for that. Later, check engine and other dash lights go on and car starts to run slightly better. Quick internet search says gas cap. She put gas in the previous night. She checks cap and says its fine. I tell her to disconnect battery for a few moments when she can. She does that later after getting back to the house. Next start was harder than before and she couldn't get out of the driveway without stalling. I got home and tried to start it. Cranked fine but wouldn't catch. Almost, but not quite. Tried again and after a few seconds it sounded like it was almost catching, I gave it gas and it started. Idled rough. Shut it off and ran through the 45 minute procedure (disconnect battery for 30m, idle for 10, turn off, idle for 5 more). To get it to start, I had to give it gas. You're not supposed to touch the accelerator during the procedure, so that may have kept from being able to do its thing. ![]() Towed car to the shop that fixed the car both times it was wrecked (they do both body and service) this morning. They haven't figured it out yet (they've had it about 5 hours). They asked if we'd had any significant work done recently, which it hasn't. It's not throwing any codes. Battery's fine and it's charging okay. This is what I'm thinking: sensor (cam, crankshaft position, etc), ECU, something in the fuel delivery system, or simply bad gas (she was 35-40 miles into the new tank of gas). Maybe some kind of blockage in air intake? Any other thoughts?
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OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? ![]() |
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#2 |
Mugwump
Join Date: Oct 2003
Carmudgeonly Ride: E46 330i, Chevy Colorado, Tesla Model 3
Location: NY
Posts: 17,475
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Ugh. What a pain.
I thought Subarus were supposed to just work. |
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#3 |
.
Join Date: Mar 2004
Posts: 13,514
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Sort of does sound like bad gas, especially given the timing. If it was a sensor, wouldn't it be throwing a code?
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#4 |
dogged
Join Date: Dec 2003
Carmudgeonly Ride: '22 M440 xDrive GC
Posts: 13,300
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No chance she put diesel in the car?
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#5 |
Chief title editor
Join Date: Oct 2003
Posts: 26,599
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OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? ![]() |
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#6 |
No more BMWs
Join Date: Apr 2005
Carmudgeonly Ride: Ram, MS3, CX-5, RX-8
Location: Glenwood, MD
Posts: 14,753
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It will eventually register a misfire code if it's idling that badly. It should have stored codes in it (CEL came on) even though you disconnected the battery. I'm not understanding why it doesn't.
It sounds like a bad crank sensor to me. Bad cam sensors will usually cause hard starting but once the engine figures out where TDC is it should ignore the cam sensor for the most part. Drive it around until it throws a code. It might take ten miles or so. Odd similar story. When I was working on Matt's 330i, the first drive after I had done all the work on it went fairly badly. It had a bad misfire, and it wouldn't throw a code. I pulled all the plugs and they looked fine. I pulled all the coil packs and they looked fine and ohmed out okay. Eventually it threw a CEL for cylinder 4 misfiring but I had to drive it for 5-6 miles. It turned out that hole had a bad spark plug (brand new!), the ceramic insulator had a tiny hairline crack in it. |
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#7 | |
Chief title editor
Join Date: Oct 2003
Posts: 26,599
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Quote:
Now she's getting worried about what she's going to do Monday with a bunch of places she needs to drive to. Hmm, I have the fuel pump I think the Miata needs. It's only been sitting for five years. It couldn't possibly need anything else, could it?
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OH NOES!!!!!1 MY CAR HAS T3H UND3R5T33R5555!!!!!!1oneone!!!!11 Team WTF?! What are you gonna do? ![]() |
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#8 |
Alphanumeric
Join Date: Aug 2005
Carmudgeonly Ride: 981S, 340i
Posts: 9,584
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#9 |
No more BMWs
Join Date: Apr 2005
Carmudgeonly Ride: Ram, MS3, CX-5, RX-8
Location: Glenwood, MD
Posts: 14,753
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My aunt lost an engine in her forester. So did a co worker.
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#10 |
Hello.
Join Date: Mar 2004
Carmudgeonly Ride: '09 X3, '11 328xiT, '11 135i C, '17 c2, '19 X5
Location: Downingtown, PA
Posts: 5,531
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Edit for wrong thread
My Dad had his oil drain out of his old subie hatchback in the late 80s. The pressure sensor failed so he never got a warning light. The engine lasted about 15miles
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Josh (PA) - '19 X5 '17 991.2 C2 Cab '11 135i Convertible '11 328xiT '09 X3 Last edited by Josh (PA); 03-03-2018 at 09:20 AM. |
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