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Old 08-05-2018, 02:43 PM   #1
bronsin
 
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Why the water pump went on my 2009 a theory

Add around 26,000 miles my water pump blew and Toyota replaced it under warranty. This was a few months after I got back from driving to Alaska. I drove 10,400 miles in 16 days. 4000 miles were in the US 6000 in Canada . In Canadado the speed limit is 100 km an hour and having never been there I didnít dare exceed that. But in the US I went 10 miles over The speed limit which men 85 miles an hour much of the time. The last 1400 miles from Minneapolis to Philly Where driven in about 20 hours from 10 oíclock at night to about five in the afternoon mostly going 85. It was Fourth of July weekend and they were no vacancies.

I wonder if thatís what blew the water pump and if anyone who has replaced the water pump abusived it like I did.
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Old 08-05-2018, 04:15 PM   #2
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I think I'm missing something - what abuse are you talking about? Driving long highway miles is far from abuse, even if you are doing many each day. Abuse would be driving in stop and go traffic in extreme temps or better yet doing track session with your caer that exceed 30mins.

I replaced mine in my 1nz a couple years after I purchased it because it had the tell tale line under the hood. I did this preventatively and installed one with a lifetime warranty.

The wp in my 2zr is the oem one as I didn't see a need to replace it when I swapped my engine and it has handled the abuse very well with no issues.
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Old 08-05-2018, 04:49 PM   #3
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Don’t you autocross or something?
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Old 08-05-2018, 05:09 PM   #4
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nope, I do open lapping days at the track and hopefully next year time attack events. Regardless, I tend to do about 100-120km on the track in mid summer heat split up into 30-45 min sessions. Not easy on a car
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Old 08-05-2018, 05:19 PM   #5
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18 hours at 90% of the redline at 90 degrees plus is pretty extreme too! Maybe thatís why our pumps went!

Anyone else have some extreme tales of operation?
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Old 08-05-2018, 05:31 PM   #6
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how were you at 90% of the redline for that long?
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Old 08-05-2018, 06:15 PM   #7
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My water pump went at around 56000KM, then I had a leak at around 137000km.

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Old 08-05-2018, 07:01 PM   #8
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Driving from Minneapolis to Philly 1400 miles in one day
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Old 08-05-2018, 08:55 PM   #9
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Our OE water pumps have always been hit or miss for reliability. Forum is full of failure reports occurring at milage which shows no consistency. Ranging from very early failure to, like me, still going strong on original. I have nearly 332,000km on mine and have subjected it to multiple 1,700km in a day trips. You just happen to be one of the unlucky ones.

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Old 08-05-2018, 11:30 PM   #10
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Toyota Yaris water pump failure mode(s) are ?

Are these mostly replaced due to seals leaking? Any impeller seizures...which would probably make the serpentine belt squeal. (And wasn't there a recent post here somewhere about the impeller coming loose on the shaft?)
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Old 08-05-2018, 11:38 PM   #11
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Quote:
Originally Posted by dogsridewith View Post
Are these mostly replaced due to seals leaking? Any impeller seizures...which would probably make the serpentine belt squeal. (And wasn't there a recent post here somewhere about the impeller coming loose on the shaft?)
my first one had a bearing failure

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Old 08-06-2018, 01:21 AM   #12
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I'd guess it comes down to who has had their belts changed or even just R&Red. It's easy to over-tighten the belt and put abnormal load on the small water pump bearing.
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Old 08-06-2018, 06:50 AM   #13
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I'd guess it comes down to who has had their belts changed or even just R&Red. It's easy to over-tighten the belt and put abnormal load on the small water pump bearing.
Car was 3 years old when the bearing failed and on the original belt, so I don't think this was the issue.

Later pump had a small leak, so I had it replaced at the same time as redoing the seal of the timing chain cover.

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Old 08-06-2018, 09:29 AM   #14
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Are these mostly replaced due to seals leaking? Any impeller seizures...which would probably make the serpentine belt squeal. (And wasn't there a recent post here somewhere about the impeller coming loose on the shaft?)
Mine leaked for about three months before it was fixed. It mightíve leaked a cup a month. Classic water pump failure involves massive leak very quickly. Iíve never never heard of a loose impeller. Water pump failure used to mean a loose shaft in the bushing. Yaris as failures are not like that.
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Old 08-06-2018, 09:31 AM   #15
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I'd guess it comes down to who has had their belts changed or even just R&Red. It's easy to over-tighten the belt and put abnormal load on the small water pump bearing.
Thatís another possibility and thereís no belt tensioner to prevent that
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Old 08-06-2018, 10:16 AM   #16
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the engine itself isnt really designed to race in the beginning. try adding a coolant with a higher boil off point and a TRD sport thermometer.

unfortunately you have to get the Sport thermo from japan.
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Old 08-06-2018, 10:17 AM   #17
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Toyota Yaris water pump bearing failure Chevrolet

Quote:
Originally Posted by IllusionX View Post
my first one had a bearing failure

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Were you able to hear it and keep driving long enough to fix it before it started to leak or cook the serpentine belt or something?
(I was thanking Chevy 350V8 for original 71 waterpump and alternator that made bearing noise while still working perfectly.)
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Old 08-06-2018, 10:20 AM   #18
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Originally Posted by IllusionX View Post
Car was 3 years old when the bearing failed and on the original belt, so I don't think this was the issue.

Later pump had a small leak, so I had it replaced at the same time as redoing the seal of the timing chain cover.

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But you didn't know how much over-tightened it may have been for the first 3 years.
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