Prius (2004-09) :: 2006 - Coolant Pump For Thermos Getting Alarmingly Noisy?
Feb 9, 2011
My 2006 prius has 102,000 miles and the coolant pump for the thermos is getting alarmingly noisy.
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Feb 9, 2011
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Prius (Gen 2) :: 2005 - Intermittently Noisy Coolant Storage Pump
I have an 05 Prius with pump issues. My coolant storage pump has been making an intermittent coarse squealing noise since I've owned the car. It seems to be worse in cooler weather. It only happens when turning the car off. Does this pump only operates after shutting the car off? If that's the case, then I won't worry too much about it. If it's supposed to function when the car is on, then I may worry. Does the pump keep running until it's finished, or is it just a timed cycle? I'm concerned if there's air in the line, it may prevent the pump from completing it's job if it's on a timed cycle. Also, if I have to replace this pump, how would I go about bleeding all of the air out of the system?
View 5 RepliesAccent MC (2006-11) :: Power Steering Pump Become Increasingly Noisy
I have a 2009 Accent GLS. The PS pump has become increasingly noisy, especially when the car is first started and when the steering wheel is turned. The noise is coming from the belt and when it does this it looks like the PS pump slows down and the belt is being forced through by the water pump. I bought a new/remanuf pump; however, the PS pressure switch thread diameter is smaller than the hole in the new pump and does not fit.
I took it back and tried another pump and same problem. Looking at a pump on RockAuto, A-1 CARDONE 215473 {#571001E000, 571001G000}, this one shows a plug with a slot in the hole where the switch screws in. I am at a loss with replacing the pump when I cannot seem to find what the car came with.
Prius (2004-09) :: Inverter Coolant Pump Failure
Prius 2009 inverter coolant pump failure 51,300 miles....
View 8 RepliesPrius (2004-09) :: Coolant Seeping Around The Water Pump?
My 2006 Prius with 120k miles has coolant seeping around the water pump. I called around to get quotes on replacement cost, but one place said the thermostat should be replaced at the same time, while the other said it shouldn't. (BTW, I will have the belt replaced at the same time).
View 8 RepliesPrius (2004-09) :: CEL With P2601 Coolant Pump Error Code?
Got a check engine light with a P2601 error code this morning - Coolant Pump Control Circuit Range/Performance.
View 3 RepliesPrius (2004-09) :: Sudden Rush Of Failed Inverter Coolant Pump
We seem to be getting reports of failed inverter coolant pumps here on just about a daily basis. I'm wondering if they're all just failing now or if this is something of a "backlog" of failures that started in Winter but are only really being detected now.
View 14 RepliesPrius (2004-09) :: Inverter Coolant Pump Failure / Warning Lights Came On
My 2007 Prius with 162k miles had an Inverter Coolant Pump Failure Monday 6.5 hours from home when my wife was driving it home from a trip. Red Triangle, (!), vsc, and check engine light. She was able to make it about 20 minutes to a dealer where it was diagnosed. Luckily no further damage was done to vehicle. Yes, she should have stopped but continued on since car was driving OK.
View 7 RepliesPrius (2004-09) :: Inverter Coolant Pump Failure - P0A93 Code
I own a 2006 JDM prius with 323,000 km. The inverter coolant pump failed recently (got P0A93 code and no agitation in coolant reservoir). I ordered a replacement on eBay and am awaiting arrival. I may need to do some light driving in the in the interim and am thinking about installing a 10 inch fan in the space between the inverter/transmission and radiator to keep things cool. Is this wise or should I just let the car sit until the new pump gets here?
Also, I am burning oil...I usually have to top up 1 to 2 quarts in between changes. Is there anything I can do without tearing down the engine? A friend of mine suggested using Lucas oil stabilizer the next time I change oil...could this have any negative implications?
Prius (2004-09) :: CHRS Electric Coolant Pump Replacement - How Hard?
After a long day at work, I stepped out of my '06 Prius and was greeted by an obviously struggling CHRS pump. It sounded like it was having a hard time maintaining speed, and to my ears was screaming; better replace soon...
View 2 RepliesPrius (2004-09) :: Pink Coolant Residue On Inside Of ICE Water Pump Pulley
On the 06 Prius I have been working on, I noticed a light build up of pink coolant residue on the inside of the ICE water pump pulley. I assumed that this was due to a coolant leak from the weep hole, which points to an impending water pump failure.
View 16 RepliesPrius (2004-09) :: Coolant Heat Storage Tank Pump Making Noise?
I'm getting a noise that sounds like "woooooooooo" from the right front of the engine compartment when the outside temp gets below about 20F and I just start the car. The colder it gets, the longer the noise lasts.
I suspect it's the pump that's part of the CHS. Just a very wild guess. The noise goes away when the car starts to warm up. No drive ability problems.
Prius (2004-09) :: Coolant Pump Still Failed Early With Loose Drive Belt
I loosened coolant pump belt when my gen II prius had only 200 miles on it. I retensioned it approximately 70% less. Where I could turn water pump pully by hand breaking traction with drive belt using all my strength.
The ice coolant pump just started to leak at the weep hole at only 63000 miles and 5 years old. I was sure the reduced tension would make coolant pump last much longer.
After retentioning it (brand new at 200 miles) I could deflect belt about one inch as opposed to not able to deflect belt at all!
Prius (2004-09) :: 2008 - ICE Water Pump Failure / Engine Coolant Losing
I bought my 2008 JDM Prius a couple of weeks ago, at 84,500km. After a week, it started losing engine coolant. (Great start! Hope it's not a sign of things to come...) Fortunately, covered by a 3 month Dealer Warranty - hopefully. Yet to make the claim.
Anyway, went to the local Toyota Dealer to get some of the proper Toyota SSL (Super Long Life) Coolant to top it up. Got chatting with the Service Agent about Prius Service and what HSD Adjustments are possible (not many) and showed him my symptoms.
Prius (2004-09) Fuel :: How To Determine If Inverter Pump / Coolant Reservoir Is Not Working Properly
How do you know if the inverter coolant pump/reservoir is bad after the recall was performed?Since it doesn't produce any codes but can reduce the electric-drive if getting too hot, how do you convince Toyota to give it a second look?
View 5 RepliesPrius (2004-09) :: Water Pump Replaced Due To Failure / Change Coolant For Hybrid System?
Actually 2 very similar questions about my Prius 2007.
1. My water pump was replaced by a dealer due to failure some half a year ago at 95,000 miles. Yesterday, after oil change (98,000), I was told it is recommended to replace engine coolant. Does this sound right? Don't they change coolant when replacing the pump?!
2. Identical question about HV pump. It was replaced at 80,000. Now they recommend do change the coolant for hybrid system. Don't they have to do it when replacing the pump?
I want to do everything necessary to maintain the car. But don't want to spend money for something that is not needed.
Prius (2004-09) :: Loud Obnoxious Noise From Front Left - Coolant Heat Transfer Pump?
I know that you're supposed to hear a soft whining noise when starting up and shutting down the car, especially in cold weather. For at least a year now, the noise coming from my front left has gotten much louder and more obnoxious, especially in cold weather.
From what I've seen on this forum so far, I think it is the coolant heat transfer pump. Does that sound right? Or could it be a different pump or piece of some sort? Seems like there has been confusion on this issue, from other threads I've read.
The noise has gotten louder and longer, it lasts about 10-15 seconds now. Especially in the winter, it sounds really bad, I'm afraid the pump is going to fail this winter.
Prius (2004-09) :: 2006 - Location Of Fuel Pump?
where in my '06 Prius is the fuel pump located?
View 1 RepliesPrius (2004-09) :: 2006 - Coolant Leak - Faulty Head Gasket?
I just bought my 2006 Toyota Prius about a year ago in 2009. It has been treating me LIKE GOLD !!! up to this point. About a month or two ago, the check engine light came on and stayed on along with a big red triangular warning light. I let it go for about a week hoping that it would just go away.
I brought the vehicle into my local Toyota dealership so they can diagnose it.They told me that they had 3 or 4 different "codes" coming from the machine when getting the signals from the check engine light. All the codes were related to the cooling system. They said that they felt that there was "debris" clogging the pathway for the coolant flow throughout the engine. They had recommended a "coolant flush" for the hybrid side as well as the mechanical side. So I took their advice and I had them perform the coolant flushes.
After leaving the dealership that 1st time, the check engine light came back on the next day. I called the same dealership and explained it to them. They asked me to bring it in again. SO I brought it to them a 2nd time. They diagnosed it again. They told me they came up with 2 of the SAME "codes" and 1 that was different, but ALL the codes were STILL related to the cooling system. They explained to me that something was preventing the clear flow of coolant throughout the engine. And since the thermostat was the only major obstacle, they recommended that I replace it. Well, I did. And after I left the dealership that 2nd time, I was praying that this was the last of my Prius issues! The check engine light came back on the next day.
Prius (Gen 1) :: Triangle Lit Up With CEL, Could Be Coolant Pump Failure?
It's been over 90 degrees. Triangle lit up with check engine and I know the inverter coolant pump is a common failure, so hoping that is the culprit. I could take to O'Reillys and scan it to see if I get related codes...but don't want to drive until fixed. On my previous gen 1 prius the pump failed and it drove poorly...lacked power (from what I remember). Maybe even cut off once or twice.
View 8 RepliesGen 2 Prius :: Inverter Coolant Pump Failures
Having seen the rather catastrophic outcomes that are possible with inverter coolant pump failure, I've thought a bit about adding a flow sensor in the coolant path. I even went so far as to buy a flow sensor, which would probably do the job. However, it's somewhat heavy, and then there's the plumbing job to take care of. Seemed somewhat challenging to pull off.
Since this aborted endeavor, I began thinking about ways to detect surface turbulence at the top of the coolant tank, and am now thinking that might be easier to pull off, even if it requires programming a PIC to do the monitoring. My current thought is to install an LED and optical sensor in the cap, and measure light intensity received.