Mild rough start

If it was a hg allowing coolant into the cylinder it will repeat frequently when cold.

 

@Grit noticed/quoted that, and yeah, I had shake on cold start after doing that, once, way back when, maybe around 25~40k kms. Short run and shut down, then start again a couple of days later, "can" trigger the shakes

Still, 140K miles before the EGR was first cleaned, could be the HG.

 

hopefully just the cold start blues

 

^ The stopper’s this? Took this pic 2~3 days back, during second cleaning. Car has 96k kms.

 

By not allowing the engine to warm up, and finish, and turn off on its own,
it's leaving some fuel in the cylinders.
This is a common issue, and I take it normal for a 3rd Generation Prius.
Mine had done that a few times, then I read about it here on Prius Chat.
Since I let it finish its thing and shut off on its own, I have not had that problem.

 

White smoke usually means coolant is getting into the exhaust.
I guess it could be possible since the engine doesn't warm up, but enough
to cause condensation, and thats' your white smoke.....

 

If this was a one off occurrence then no sweat. In another thread, a feller posted the same incident, you should have red the scared straight posts that it was possibly a blown gasket and get the egr cleaning ASAP and then a possible lithium battery needed with a referral code to use. Man if I was the original poster I’d lost a lot of sleep on the other post!

 

Yea you can find a link to that lithium HV battery on my profile as well as other links with the code azusa to use and save money with!!!!

 

Yea you can find a link to that lithium HV battery on my profile as well as other links with the code azusa to use and save money with!!!!

 

Yes, except when it means when someone mistook water condensation (fog) from exhaust from normal combustion for smoke---typically when ambient temperature is cool or humidity is high or both.

 

It's crazy that this only really happens in our cars because of the 13:1 compression ratio. Even though the atkinson cycle lessons it, they can't handle extra liquid of any sort whether gasoline or water. Typically a situation like that in a low compression motor the engine would just want to die until it squeezed it out and then it would keep going in my experience. Definitely try to get the car up to temp every time you start it to avoid that or try a catch can connected to the intake or a vent can not connected to the intake, they both help. Every knock is another point...

 

Dont turn it off prematurely anymore then. Wait for it to fully warm-up and shut the ICE on its own. Shouldn’t take more than 5 minutes.

 

3rd gen Prius has around 15 sec “grace”, before engine kicks in. If I’m say backing out car from garage to driveway, I’m cognizant of that, work fast, while counting seconds in my head, shut down at ten.

If I’m going to need more time, trick number two: plug in the block heater, for at least an hour beforehand, preferably two. Then, when starting the car, immediately push EV button, and verify it worked, that the green EV icon lit up. The block heater usage raises coolant temp enough that the car will permit EV.

If, for whatever reason, you misjudge and engine does kick in, yeah let it run till it shuts down.