Rough Running Sonic? Check These Ignition Issues Now

Had almost identical issues with my 2012 Chevy Cruze diesel. The symptoms pointed to the ignition switch initially, but turned out to be a combination of issues. When the key turn failed intermittently, the car electronics would go haywire, causing the engine to stall. The real culprit was corroded wiring connections at the starter motor and a failing ignition switch assembly. The starter connections were causing poor electrical contact, while the worn ignition switch wasn't properly engaging. These issues created a perfect storm of starting problems and unusual stalling. It's definitely a serious issue that needs immediate attention, driving with intermittent power loss is dangerous. My repair involved: Cleaning/replacing corroded starter connections, Installing new ignition switch assembly, Checking fuse box for any blown fuses, Testing battery and alternator Would strongly recommend getting a second opinion from another shop. The symptoms you describe match my experience almost exactly, and it's likely not just a single component causing the problem.

Thanks for sharing your experience! I had similar issues, but mine also included flickering dashboard lights and occasional complete electrical failure before the engine would die. The ignition coil ended up being part of the problem too, it was causing intermittent misfires that I originally thought were related to the starter motor issues. Did you remember roughly what the total repair cost came to? And have you had any recurring problems since getting it fixed? Just asking because I'm still occasionally getting a slight hesitation on cold starts, though nothing like the original issues.

Just got back to update on my Chevy Cruze situation, all fixed now! After seeing a different mechanic, they confirmed what I suspected about the ignition switch being the main culprit. They also found a blown fuse that was contributing to those dashboard light issues you mentioned. The total repairs came to 52 € for the fuse replacement, plus labor for the ignition switch work. Since getting it sorted, absolutely zero problems with starting or stalling, runs like new! That slight hesitation you're experiencing on cold starts might be worth getting checked though. Could be something simple like a weak ignition coil that's not quite failed yet. The car electronics are all working perfectly now, no more flickering dashboard lights or electrical gremlins. Really glad I went for the full diagnostic because that fuse issue could've caused more problems down the line. If you're still getting that hesitation, might be worth having them check the entire ignition system while they're at it.

After dealing with these issues for weeks, I finally bit the bullet and took my Sonic to a different mechanic. What a difference! The new shop did a complete diagnostic and found multiple problems, my ignition coil was shot, there were some damaged wires near the starter motor, and the car ignition system needed a thorough cleaning. The whole repair job took about 4 hours and cost around €450, but it was worth every penny. No more unusual engine shutdowns or starting issues. That cold start hesitation I mentioned is completely gone too. The key turn is smooth now, and the engine fires up instantly. Funny thing is, they showed me the old ignition coil, it was practically falling apart. No wonder I was having so many problems! The mechanic explained everything clearly and even showed me the worn parts. Much better experience than my first repair attempt. Been driving for two weeks now without a single problem. Should've gone to this shop in the first place instead of wasting time with guesswork.