Once the engine is running, I wouldn't expect a low battery on a pushbutton start transponder key to cause the engine to quit running.
Once the engine is running, I wouldn't expect a low battery on a pushbutton start transponder key to cause the engine to quit running.
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)
This is interesting:
Neither the fuel issue or loose battery connection would explain that.sudden rpm spike from 1500-3000 while doing about 30mph, and 15 seconds later i was at the stoplight where it just cut out.
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View my fuel log 2014 Mirage ES 1.2 manual: 63.2 mpg (US) ... 26.9 km/L ... 3.7 L/100 km ... 75.9 mpg (Imp)
You can push button start the car and leave it running and take the key with you and someone could drive the car away. I've had a discussion with a pal about this and proved it to him awhile back. Changing the battery wouldn't hurt but should under no circumstance cause the car to shut off if it's dead.
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An intermittent problem like this is really tough to pin down in a dealership environment. Why? Because if your warranty is covering this, the technician isn't going to get paid to spend hours on your car trying to run down a problem he can't duplicate. If he's lucky, he might get paid 30 minutes of labor time to check out your car. And warranty time pays less than standard "customer pay" jobs. So the tech is incentivized to "take a shot at it" and then get on to the next paying job so he can actually make money that day. That's what you've been experiencing so far. If he can't duplicate your concern, it's a challenge. The dealership service department is not well-suited for this kind of repair, unfortunately.
You're going to need some patience with this. The more specifics you give them the more it will help them. For example, the fact that your car won't crank immediately when the engine dies is a big deal. If you see any odd lights on your dash or anything unusual...that would also be helpful to them. If you know how to use a DVOM, checking a couple of voltages the next time it happens would also be helpful.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)
I would familiarize myself with Arizona's lemon law, perhaps ask the dealership what they think about it next time you are there. I would also start the car then remove both battery cables one at a time to see what happens. Loose battery cables sounds like a very low energy excuse.
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View my fuel log 2014 Mirage 1.2 manual: 38.0 mpg (US) ... 16.1 km/L ... 6.2 L/100 km ... 45.6 mpg (Imp)
The dealership service department HAS to have a portable scan tool for drivability issues. Hook it up, have the PDI or oil change kid, heck, even a service writer, drive it a few times a day until it acts up and throws some codes/data. Then it at least gives the driveability tech somewhere to start, without costing him diagnosing time, which we know flat rate shops hate to pay for. These places have no clue the PR damage stuff like this causes.
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View my fuel log 2018 Mirage GT 1.2 automatic: 37.3 mpg (US) ... 15.9 km/L ... 6.3 L/100 km ... 44.8 mpg (Imp)
hi guys,,
it is just stock DE w/cvt & traditional key. my girlfriend's commuter car. the battery was new last summer.
mitsubishi still has the car this afternoon, they say they have replaced relay switches and are test driving it.. but we have a tmobile wifi spot plugged in under the dash, and i saw the same low battery warning that i would get right before it would stall out on me. When i informed him of this, his response was "oh that was probably when he unplugged it", and i replied, "no,, he unplugged it 5 minutes later,, i get a separate notification for that",, and his response "well that's not an official diagnostic reader" (yet it sure as hell was right every time the engine crapped out on me)
https://youtu.be/g7Z6RKYexnY <<engine cutting out 30 seconds after starting (this was while waiting for tow)
https://youtu.be/BeRTLlOeebk <<big two mechanic couldn't start it
https://youtu.be/mgBO-YdSdq8 <<big two mechanic telling his service advisor that they need to tear the engine apart and likely catastrophic engine failure... yet that never happened
their service advisor said "well you could always trade it in",, monkeys are more likely to fly out of my butt than buying another mitsubishi from their dealership. however big-two also owns a toyota dealership 15 miles over and i wouldn't rule out a rav hybrid when the 19s are in.
Top_Fuel (02-05-2019)
That video is very helpful. Your car is dying immediately like someone cut the ignition. The engine isn't sputtering and shutting off...it's cutting off very suddenly. That makes one think that it is electrical in nature.
You said you get a low battery warning right before this happens? I'm not sure what low battery warning you are referring to. Edit - OK...I see what you are saying. This is coming from some device you have plugged into your OBDII port?
I'm having trouble keeping track of where you are at with this thing RIGHT NOW. Based on the videos you posted, this car is currently at a dealer and the engine won't even turn over even though the starter seems to be engaging? In other words, the engine is now acting like it's locked up. Is that right?
I have to tell you...the idea that a dealer reported that this car was a GALLON low on coolant is somewhat alarming. A gallon is 95% of the coolant capacity of the engine...
Last edited by Top_Fuel; 02-05-2019 at 06:43 PM.
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View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)
mohammad (11-04-2021)