In the morning (sometimes) when I turn the car on the engine turns on and idles for about 30 seconds and then shuts off with a loud calunk; nothing like it turning off at a stoplight or when I park (which is a quiet engine turning off). Is this normal? -Ryan Lee Oh BTW - Where's there a good place for window tinting in the North Bay?
<div class='quotetop'>QUOTE(Sufferin' Prius Envy @ Jul 20 2006, 01:27 PM) [snapback]289563[/snapback]</div> 4 months - It pretty loud and happens only when I first start the car on occasions. Its like a quick sputtering
The electric motor is supposed to pin the ICE down (and spin it up when it starts) so that there is very little clunking. But I have noticed a rough shut down every once in a while with my '04. If it is really bad I would take in in to be checked.
<div class='quotetop'>QUOTE(Ryn01599 @ Jul 20 2006, 01:30 PM) [snapback]289566[/snapback]</div> New car, not quite broke-in. I'd say it's normal . . . a little disconcerting, but normal. The computer is just doing some ICE house cleaning and setting up the ICE in the proper position for a smooth start. The symptoms will go away with time . . . or you will become desensitized to it happening. I'm not sure which, but I have not heard the "Calunks" in over a year now.
The occassional rough ICE shutdown I get seems to be more likely to happen when the engine is still cold.
<div class='quotetop'>QUOTE(cwerdna @ Jul 21 2006, 11:36 PM) [snapback]290369[/snapback]</div> I've also heard that because of the way the Prius emissions system works, it keeps firing the spark plugs for a short time after the last fuel has been injected - that ensures a total burn-off of all fuel in the cylinders. Dave
<div class='quotetop'>QUOTE(Ryn01599 @ Jul 20 2006, 04:20 PM) [snapback]289554[/snapback]</div> Mine ('06 acquired 2006.04.01) does this as well, usually only at the end of the first warm-up cycle. It's almost like it can't decide if it really wants to shut the engine off or not, sounds similar to cars I've had that do a little "dieseling" when you turn them off.
<div class='quotetop'>QUOTE(DaveG @ Jul 22 2006, 01:30 AM) [snapback]290385[/snapback]</div> Funny - I bought my car on the same date 06 prius!
