2012 3.8 sedan

Noticed the other day that the car has a noticably rougher idle while in drive but not while in park. I'm taking it to the shop for new tires and breaks tomorrow, any suggestions for potential issues they could check while they have the car? Thanks in advance!

So i had a small shop install a 2014 3.8 into my 2012 3.8 and everytime i clear codes the same 2 codes come back 24/7, the car drives the same no changes but i dont like the CEL on all the time. How do i remove/fix the issue? My driving was the same before i install the engine nothing changed...

I come from a acura where wheel size isn't really a issue and I'm also very inexperienced when it comes to the technicalities of wheel sizes and clearances. But I love the look of these wheels and was wondering if they would fit on my 2012 3.8 V6 Tech pkg?

So i just had my 3.8 engine replaced last week and ever since then there is this extremely strong smell of coolant i can’t find it leaking below the engine or in the front by radiator. I’m assuming it’s either pressure related and dripping from rear and burning on the exhaust or on the engine...

Hey everyone, hopefully this thread becomes active as I can get many responses and experiences from you all. My car is having an issue with the shifting box where it will sometimes not know what gear I select and I get a P0705 for the range sensor(inhibitor switch) code. This happens...

The shifter in my 2012 3.8 Sedan has been giving me occasional difficulty recently, in that it would not shift into Drive. This happened intermittently and at first, it was easily resolved by pulling the shifter a little more forcefully into Drive, or by shifting back to Neutral and then to...