Inverter coolant pump running

twdusa · 12-29-2005, 04:03 PM

I have just noticed that the Inverter coolant pump runs not only with the car in the READY mode which seems normal ---- but it also runs continuously with the car in the ACC mode (press the power button twice without pressing the brake----amber light on power button---car not powered up).

Is this normal? I never noticed the HUM of the pump before with the car not powered up before?

Tom

galaxee · 12-31-2005, 11:25 PM

hmmmm... that's not right. it shouldn't be running for more than 10 sec or so.

ours won't run at all in ACC mode... at least when he ran out and checked just now.

notice any other problems? mileage still okay? where in ENC are you? DH works at a dealer in Durham.

well anyway, when you bring it in, ask to talk to the top Prius Tech. ask the guy if he's familiar with the schedule of when that pump is supposed to be running. show him yourself what it's doing. sounds like it needs to be looked at.

good luck to you, let us know how it turns out.

Frank Hudon · 12-31-2005, 11:55 PM

and do it before it burns out and they say no sound is normal. If it's not making any noise by the time your at the dealer get the tech to hook up the THHT

12-31-2005, 11:25 PM	#2
galaxee mostly benevolent Join Date: Mar 2005 Location: MD Posts: 9,810 My Car: 2005 Prius Model: N/A Package: #5 Thanks: 0 Thanked 331 Times in 85 Posts Friends: 27	hmmmm... that's not right. it shouldn't be running for more than 10 sec or so. ours won't run at all in ACC mode... at least when he ran out and checked just now. notice any other problems? mileage still okay? where in ENC are you? DH works at a dealer in Durham. well anyway, when you bring it in, ask to talk to the top Prius Tech. ask the guy if he's familiar with the schedule of when that pump is supposed to be running. show him yourself what it's doing. sounds like it needs to be looked at. good luck to you, let us know how it turns out. __________________ black 2005 prius, a few mods that make me happy

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Inverter Coolant Pump takes a dive	dbarry	Gen II Prius Care, Maintenance and Troubleshooting	135	01-17-2011 03:05 PM
Changing Inverter Coolant	BeachDriver	Gen II Prius Care, Maintenance and Troubleshooting	9	03-14-2008 01:00 PM
Inverter Coolant, Classic Prius	gippah	Gen II Prius Care, Maintenance and Troubleshooting	1	10-17-2007 09:51 PM
Engine and Inverter Coolant	IndyDoug	Gen II Prius Care, Maintenance and Troubleshooting	2	04-29-2007 08:24 AM
Coolant Pump	BitShifter01	Gen II Prius Main Forum	1	12-13-2005 06:24 PM

12-29-2005, 04:03 PM	#1
twdusa Join Date: Mar 2005 Location: Eastern North Carolina Posts: 53 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	I have just noticed that the Inverter coolant pump runs not only with the car in the READY mode which seems normal ---- but it also runs continuously with the car in the ACC mode (press the power button twice without pressing the brake----amber light on power button---car not powered up). Is this normal? I never noticed the HUM of the pump before with the car not powered up before? Tom

12-31-2005, 11:55 PM	#3
Frank Hudon Senior Member Join Date: Jan 2004 Posts: 4,146 My Car: Model: Package: Thanks: 0 Thanked 3 Times in 3 Posts Friends: 0	and do it before it burns out and they say no sound is normal. If it's not making any noise by the time your at the dealer get the tech to hook up the THHT