I hear a whirring sound for about 30 seconds after I power down the Toyota Prius. Anyone knows what that is? Is it a problem?
2006-09-02 10:52:54 · 5 answers · asked by Ashvin K 1 in Cars & Transportation ➔ Car Makes ➔ Toyota
http://www.vfaq.net/FAQ-misc.html#whirring
As long as the sound doesn't start getting louder or clunking, it is perfectly normal on a North American 2004-current Prius. It's the pump taking warm engine coolant and putting it into the little thermos of the CHHS (coolant heat storage system), to store for use when you next start up your Prius to more quickly warm up the engine.
2006-09-04 08:48:36 · answer #1 · answered by mrvadeboncoeur 7 · 0⤊ 0⤋
I think it's the electric motors that take slightly more time to power down, shouldn't be a problem.
2006-09-02 17:00:50 · answer #2 · answered by zhongwen29 1 · 0⤊ 0⤋
It is most likely the radiator fan, after you have stopped the engine coolant temperature could still be high enough to keep the fan running
2006-09-03 04:28:39 · answer #3 · answered by Troglodyte 2 · 0⤊ 1⤋
Electric motor.
2006-09-03 17:27:09 · answer #4 · answered by aisdean 3 · 0⤊ 0⤋
the fan cooling the turbo or the fan still running to cool the enginge before it stops, depends if you have a turbo or not.
BUT IT IS THE RADIATOR FAN
2006-09-02 10:55:08 · answer #5 · answered by Spaghetti MY 5 · 0⤊ 1⤋