I have a 2010 Chevy Equinox LT AWD.
Since having the spark plugs replaced, we have been having the following issue:
Specifically on cold days, after staring the car and staying idle, the car RPMs will drop, the engine will shudder and the car will die.
We now sit with the car in idle and have our foot ever so lightly on the gas pedal to counter the drop in RPMs and the chugging that we notice. We do this for a few minutes before the chugging goes away and we can then drive away.
If the car sits for more than 2 hours after that, it does it again.
It definitely started happening more often now that the temperature has begun to drop. In the summer, this happened maybe twice.
No indicator lights come on, everything looks and acts as it should otherwise.
Any ideas? I have had it in to the Chevy Dealer in town with no resolution yet…