I notice a shudder when the ICE kicks on. It's not anything that is prolonged, however, and I do not notice it very often. When I do, it is typically in the morning while in the garage or backing out of it...perhaps because of the cooler weather.

 

I noticed this issue in my '12 TCH dealer is unable to reproduce

 

I have not noticed what you describe in our 2014 TAH Touring. Our 2012 Camry Hybrid (same drivetrain) had 2-3 instances where the transition from EV to ICE was slightly rough but only for a moment in the 2.5 years we owned it. If the ICE is rough for more than a second or two something is not right. Are any codes being set? Is the E-brake completely disengaged. Bad gas could be an issue? Run it down near E (fortunately it takes a while in these Hybrids) and try a different fuel source (tier 1 gas) to eliminate fuel as a possibility. A station you go to often might have received a bad lot.


These are VERY reliable drivetrains from my reading the TCH and TAH forums over the past 2-3 years so I would not expect rough running.


Keep us posted, and good luck resolving this issue.

 

Have you tried adding a bottle of fuel system cleaner, i.e. Chevron Techron? Could be a dirty fuel injector.

 

We haven't experienced the ICE running as rough as you describe, but by the time we're on the highway, the car has already warmed up. I do think it runs a little rough while warming up a bit sitting in the driveway, and the exhaust smell is strong, but again, nothing like you describe. We've had some really cold mornings here in MD, probably same as you in VA.

Since you probably don't do as many fill-ups with the hybrid as you would with a non-hybrid, it might be worth trying a fuel additive for a few tanks of gas, as Den49 has suggested. I know I would like to do that as preventive care, just haven't got around to it yet.

 

Any update on the rough running ICE?