Prius (2004-09) :: Coolant Pump Still Failed Early With Loose Drive Belt
Mar 28, 2014
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!
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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.
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2009 Sonata; about 82K miles. Drive belt was replaced in July, about 6K miles ago, by Trusted Independent Mechanic in El Paso. Now, Trusted Independent Mechanic in DC area replaced it again because one of the belt's ribs was falling apart. Attached photographs show a portion of the damage (which is only on that one ridge).
Did that belt need to be replaced?What could have caused he damage? (Mechanic says pulleys look ok; maybe defective belt.)
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So I was getting my car flashed to stage 1 at a dealership here in the Chicago suburbs and there was CSG R in there with the timing belt shredded. Turns out water pump came apart, shreded the timing belt, and apparently the pistons smashed the valves. I got a call from my friend whos a mechanic and said another one is getting towed there today with the same issue. Both have between 2k and 3k miles on them.
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I was driving my 2005 RX 330 (138k miles) North on I-75 through Atlanta in rush hour traffic when the car completely died in the left hand lane w/ no shoulder. GDOT stopped six lanes of traffic to push us up and over a couple of hundred yards to a right shoulder. It was determined that due to a coolant leak from the water pump the timing belt malfunctioned and shredded.
I had heard that the water pump should be replaced during the 90k maintenance when the timing belt is changed, but my water pump was not replaced according to my maintenance records. I understand from reading a couple of posts that this isn't always required but that they do check the water pump. Is this correct? And if so should they have noticed that there was a potential problem?
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Toyota dealer said computer indicated the water pump and belt needed replacing. We decided to do the replacement ourself. Now the light comes on which indicates car is running hot. We did replace the coolant. The 2005 Toyota Prius never ran hot before the replacement, What did we do wrong?
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Prius 2009 inverter coolant pump failure 51,300 miles....
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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).
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The scenario: I recently filled up at a station that, according to the attendant, had just lost electrical power but power had been restored. The pump was flowing agonizingly slowly, so I asked the attendant what was up, and he said the system needed 20 minutes or so to reboot before the pumps would flow at the normal rate--sounds kind of specious to me, but I was in no hurry, so I figured so what, I'd wait it out.
Well, eventually the tank filled up, and then some. The pump's auto-shutoff failed to work (my guess is that the flow rate was so slow that the back pressure failed to build up to the point to trigger it, but, whatever...). Gas was dripping everywhere by the time I noticed it (since it was taking so long, I wasn't paying close attention).
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My audi runs great. Its has 170K miles on it. My mechanic replaced an air pump last Friday and by Monday I had a new issue. I noticed coolant leaking. I took it back to the mechanic who fixed the airpump to diagnose. He tells me that the leak is coming from the timing belt/water pump area and in order to get there it takes 7 hrs. He suspects that its the water pump or a cylinder block crack. He suspects it could be a water pump breakdown more than a block crack. A block crack could be a serious issue with the engine is what I suspect.
I think he did something wrong when he replaced the air pump. He tells me that these are in two different areas and that he canbe generous with his time in only diagnosis but not in fixing the problem. Do you think he is right ?
He recommends that when they open the timing belt cover its best to replace the belt, tensioners, water pump etc.. Now spending $ to get to know where the leak is sounds steep.
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I just bought a used 2009 corolla, turns out a few weeks in, I am getting the infamous water pump/ac compressor clicking noise from the drive belt area.
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Got a check engine light with a P2601 error code this morning - Coolant Pump Control Circuit Range/Performance.
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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.
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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?
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My 2006 prius has 102,000 miles and the coolant pump for the thermos is getting alarmingly noisy.
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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...
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I was told by VW service that my timing belt is loose and needs to be changed. Is it possible to know that without taking things apart? The belt was changed at 80k miles. The vehicle is at 132k miles now. Its a 2004 v8. the quote is $1400 which I suppose is in line with what these cost but I'm wondering if I can wait until 160K before changing it.
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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.
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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.
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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.
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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?
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