Recent content by 12sonicltz

Just started having this issue this morning. Driving at 70mph and running fine. Under hard acceleration, it bumped, almost like a misfire. Accelerating from 70-80 in 6th gear it would do this. Gradual acceleration was fine. I only noticed it in 5th and 6th gear and just under hard...

I just replaced the plugs and ignition coil. It seems to be running normal, but I gassed on it and it misfired. I got a cylinder 3 misfire and random misfire code. It drove normal after that. Any idea what would cause this?

I have a stock 2012 ltz 1.4T. I am thinking about getting a better air intake. Have had several recommended to me: K&N, AEM, ZZP. Has anykne else ran these that could steer me in the right direction? I'm not trying to start am argument over brands, just curious if anyone has had any luck with...

My thermostat housing appears to be leaking, and I was told there was extended warranty on it, up to 150k. I have a 2012 ltz 1.4l with 117k on it. If not under warranty, do I need to buy the whole housing unit or just gasket? Figured I'd be better off just replacing whole unit. Does new unit...

I have the 17" rims with low profile hankook tires. I was debating getting a smaller of rims with better winter tires. Anyone else do this? Recommendation for tires and rims?

I noticed after driving, the smell of antifreeze. Thought it would be covered under my extended warranty, so I took it to the dealer. Turns out after pressure testing, it was the coolant outlet leaking. Extended warranty doesn't cover that part. Looking at it, it seems fairly basic to replace...

I'm new to the forum and new to the sonic, as I just bought my 2012 Sonic LTZ a couple weeks ago. When I test drove it, it seemed to drive just fine, although I wasn't really pushing it. After purchasing the car I noticed a jerking when trying to pick up speed and a very slow acceleration...