Water Pump Failures (1 Viewer)

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Joined
Jan 10, 2005
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Recent postings indicate the water pump used on the 2UZ-FE engine has a reputation for being an early failure component. It would be interesting to see some postings giving the mileage when pump failure occurred. It would also be interesting to see posting from those with over 150K miles who have not experienced a pump failure.
 
From what I've read all of the 4.7V8's are built in the same factory in Japan. Only diff is the ECU is set-up tuned a little different for different applications. Same parts, same factory. I know that this is a LC site and everyone wants them to be special but the reason Toyota is one of the biggest most profitable automakers in the world is that they do what's called parts sharing and they do it a lot. The good thing is that they are all quality parts.
 
I changed my WP at 98k. The part was not deficient in ANY way. Changed merely because it was cheap to do and at the time of the timing belt/90k service, it is exposed anyway.
 
Mine may be squeaking at startup on cold mornings, but it goes away. I have the receipt from the 90K service, and it wasn't done then. The question is- should I replace it now (136,000 miles) and then the timing belt at 180K, or do both now? I have a new belt that I haven't installed yet, and I was going to replace the coolant this summer (every 2 years). Anyone have an opinion?
 
Water pump was leaking at 90k timing belt change and was thus replaced.
 
Hank:

I would not wait until 180k to change the timing belt or the WP. But especially not the timing belt. 180k on ANY vehicle with a belt is way too long an interval. IF that belt breaks, just if, you are fawked and you would not want to see the mech. charges on fixing the damage caused by a broken belt in a 100 series. Same goes for heating/cooling issues that come up due to not flushing the system on a regular basis.

Some things are driven by marketing and paranoia, avoiding very expensive bills due to timing belt failure is not one of those ( :

Just my OP
 
lizardking100 said:
Mine cost $70 and was .25 hrs to have installed when doing my t-belt service. My decision to have it replaced was purely for PM reasons. I've never heard of any "reputation" for premature failure on the 100's WP. Before 100k would be an exception, beyond that your chances are still pretty good IMO, however if you've ever been in a vehicle during a WP failure it is a PITA. The choice is whether you want to spend $100 every 100k miles to have an operating WP or have the chance of spending $500 for the extra miles you may get by skipping it. With the latter, you chances may be favorable, however you will find that most cruiser owners are peace-of-mind types.

I'll back the king here... any vehicle with a t-belt receives an H2O pump at that service, it's a no-brainer. An in town tow will cost one more than the price of the pump (unless insured or AAA), the $100 spent is far beyond the headache of losing the pump 5 minutes from home, never mind 5 hours away in the middle of the woods. :D
 
I skipped the WP at the 90k t-belt replacement. I'm going to try and double stint it to the 180k mark. No leaking was noticed at the t-belt change. I'll change it at 180 regardless. I think I've got about 70k more miles to go though :) Seems that it is changed more as a PM item as opposed to a truly problematic part. It's cheap insurance.
 
I just noticed that you are questioning waiting to change the belt.

CHANGE THE BELT!!!!!!!!!!!!!!!! ~$380 well spent at your local Mr. T without the water pump. Not alot even with the water pump IMHO.
 
lizardking100 said:
.

Don't quote me on this but I do remember Cdan mentioning something about selling a lot of WP for Sequoias -although it may have been another part. Those V-8s are sourced differently than the one in the 100.

Looks like they started sourcing V8's for "Tundra's" for the 2004 model year in the USA. All others are sourced from Japan.

http://www.toyota.co.jp/en/news/03/0513.html
 
tabraha said:
I just noticed that you are questioning waiting to change the belt.

CHANGE THE BELT!!!!!!!!!!!!!!!! ~$380 well spent at your local Mr. T without the water pump. Not alot even with the water pump IMHO.

Thanks everyone for your concern. Let me clarify- I bought my LC used, but have the receipt for the 90K, as well as all other factory service, which included a timing belt change (it was done at 90,ooo miles).

I was trying to decide if I should wait until the SECOND timing belt change for the water pump, at which time I would do t-stat, hoses, water pump, timing belt, timing belt pulleys, etc.
 
lizardking100 said:
Yeah I got really carried away with the LC sentimentality there didn't I?

It's always nice to have your unqualified opinion and condescending commentary on everything that is said in the 100 Tech forum. You really dig your 4runner -great. I like them too. But you don't see me (or anyone else here) on toyota4runner.org blabbing things we don't know about. I was just trying to offer some advice regarding something I have first hand experience with, and a tad of objective opinion that has nothing to do w/ LC pride. So...drop the 'tude and get a life.

BTW, Toyota has been producing 4.7s in Alabama for a while now. Different parts, different factory -similar quality ;).


I guess this is something you've always known:
https://forum.ih8mud.com/showthread.php?t=28447&highlight=piston+slap


What a small minded post. Next time you need to read/think and then post.
 
Come on fellows, easy does it.

Hank:

Thanks for the clarification. It sounded as if you had a new t belt and was going to wait until 180k for the first change. Anyway, clear on that. With that said, I would wait until 180k to change the WP. Like I said, my WP was completely fine when I changed it i.e. no leaks at all.

Juke
 
man I am so confused! I can't tell who the asshat is and who isn't :D

me, I not seen a stock waterpump go before 200K on any of my Cruisers, but that doesn't mean I won't be intalling a new OEM WP when I do the t-belt at 90K.......its $100 well spent for the piece of mind if nothing else.

our 90 fj62 WP just started to weep at 240k.....thats the only one I have actaully had leak.
 
Thanks again everyone. I'll watch it closely and update if it croaks or I chicken out and change it anyways.
 
lizardking100 said:
Please tell me how you know the water pumps installed in other Toyota V8s that are assembled in different factories on different continents for different vehicles aren't sourced from different suppliers or aren't installed using different methods. And then tell me how this information has anything to do with the question at hand!

You were indicating that if there was any problem with water pumps it was from V8's made in the USA by Toyota for Sequoia's. None were made in the USA for Sequoia's or Tundra's until model year 2004, doubt any have 90K miles on them yet. Again I will state that ALL of the V8's that go into USA bound LX/LC/GX and 4runners are made in the same factory in Japan (they don't make one engine and say lets use these parts because its going into a Lexus and then when they make another engine decide to use different parts and they say lets build this one and put it in the Landcruiser or 4runner. The reason I am on this site is that I had a 95 FZJ80 for around 7 years and someday I will buy a 100 series, so I like to keep up with what people are experiencing with them (did not realize you needed to own something to know about it??) Also since my 2004 4runner has the same engine and transmission as the LC/LX and this group has experience with this engine since 1998 and with the 5 speed auto since 2003 and also put them through more stress than most 4th generation 4runner owners would it is a good place to measure what future problems to look for or work to prevent. I do think a lot of the 4th Generation 4runner, it is not a Landcruiser but it doesn't cost as much as a Landcruiser. I do try and interject into some threads when members make statements that are not true based on what I have learned. I guess I don't know what your problem is with your personal attacks? These sites are for the exchange of ideas and I don't expect every post from every member to be correct but I find that by the time a thread has been around for a while the correct information comes to the forefront. In the future please ignore my posts if you don't like them or please feel free to correct any miss statement I might post, that's what we are here for to all learn. I did feel like your final post on what to do about the WP was the right approach. You stated that you and other folks were tire of my BS, man I sure am glad we don't have these meetings in person since I'm just a little guy and would have a hard time defending myself :) NOT
 
I'm in the same boat as you Hank. Bought my cruiser used a year ago with 107k and the dealer maintenance records from the PO confirmed the timing belt had not been changed. I changed it myself at 110k but not the WP. Now I'm at 130k and found this board a month ago and started reading every LC and LX owner is changing their water pump at 90k as part of the timing belt changeout. I was surprised by this because I'm thinking a Toyota WP should go >200k if the anti-freeze is changed regularly (18-24 months). So I begin thinking the WP is a weak link and has a reputation for failing early. From these responses, I've determined the WP at 90k is primarliy a PM thing. Only one reported failure at 90k and that was a slow leak, not an impeller separating from the drive shaft (like King experienced) where you end up stranded. I too have decided to hold off on the WP change until the next scheduled timing belt change. Of course, if the WP goes first, the timing belt will be changed at the same time. In the mean time, I will be keeping a little closer eye on the garage floor for puddles of red anti-freeze. Smile everyone, it's Friday night! jp
 
I think there's a little urban legend going on here. There hasn't been any hard data of premature water pump failures. Guys that are anal about their vehicles replace a part when it's taken off a vehicle, like a water pump, which is normally a PITA and not a regularly scheduled maintenance item according to the manufacturer. If a regular car guy goes to the shop for 90K service and the Owner's manual says timing belt change but not water pump, they are going to blow a gasket when the shop says "we're going to have to remove that water pump anyway, do you want us to replace it as well?" He'll think he's getting bent over.

Enthusiasts see it a little differently. When our 98 Avalon was in for it's 90K service, the shoptech said the sealed timing belt pulleys were a little off, possibly going out but he couldn't be sure. We changed them out- makes sense to me. The way I see it, if I change my water pump or starter or brake calipers or rotors or bearings at whatever mileage before they fail, I have peace of mind for an equal number of miles that it is unlikely to be a problem. No guarantees, just peace of mind. Likewise, if no maintenance is ever done, there is a lot of doubt about when a vehicle is going to kick the bucket, therefore people get nervous and suckered into new car fever. I'm done.

Have a good weekend.
 
people should refrain from bantering back and forth, it goes no where. each heas their opinion and all is fine. it takes a good thread about important info and ruins it for the guys who want the info. I like to learn about things too. I don't own a 100, but want to. and having to read thru the bantering is annoying. please think of that before posting.
 
the waterpump replacement when the timeing belt is done is AFAIK recomended by most shops when doing the timing belt because the labor is less at this time. its the same with any car/truck with a timing belt. when I had a honda accord I did the WP at the same time as the TB because it was just the part cost and no labor(or alot less). On cars like a honda I know its a PITA to do the pump by itself. On a 100 its prolly not as bad to do just the pump.

So in short, I dont think the 100's have a WP problem, just that its cheaper and cheap insurance to do it when doing the timing belt.

Kinda like a older Cruiser like a fj62, if the rad is in need of replacement at say 200k.......you would be smart to do the waterpump(and even fan clutch) at the same time..............just because it easier. And being anal, alot of us would replace some of the hard to get to hoses at the same time.
 

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