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What can cause an automatic car to suddenly shake and stop? (mander.xyz)

submitted 1 year ago by [email protected] to c/[email protected]

30 comments fedilink hide all child comments

It happened to my car last week, it got towed to a mechanic and I'm yet to hear back. I don't know a lot about cars, so I'm hoping I'll learn something here and be able to tell if the mechanic tries to rip me off.

The car is a small hatchback automatic Hyundai Getz, 2009, serviced regularly. I've had it for 6 years with no major issues until about a year or so.

Five days ago I was driving through the city for at least 40 minutes when suddenly, while waiting at the lights, the car shook and for a moment I thought it would stall. I stopped on a side street, waited 20 minutes and resumed my journey.

About an hour later I'm on the motorway and it shakes again. I stop on the shoulder, wait, but it's not a safe area. I start again, only now I have the check engine light on my dashboard blinking. I manage to take an exit and my car stops on its own, the oil and battery lights now visible too. Fortunately there is no traffic here so I wait a minute, start again and park it on the shoulder.

Roadside assistance arrives, the mechanic looks at it and finds nothing wrong with it other than a fuel sensor which is an issue I've had for several years now. We get it towed to a mechanic but they were closing shop by the time I arrived. Before closing the shop mechanic says that at a glance he doesn't see anything, but notes the oil looks very clean.

I've never had the car shake like this. The last time it failed me was early this year, when it overheated during a very hot day, but it didn't shake. I've had the thermostat repaired since as well as a minor coolant leak.

Congrats, you've read this far. Thoughts?

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[–] [email protected] 16 points 1 year ago (1 children)

Flashing check engine light means you have a severe misfire.

Probably a coil pack

[–] [email protected] 2 points 1 year ago

That could definitely do that. Had that happen to my GTI; I pulled over as soon as I was able to and parked the car. I checked on an OBD II reader, and the light and shaking was caused by misfiring. I replaced all the coil packs, cleared the code, and it's been fine since.