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Waterpump as PM? #4684266
03/04/18 05:21 PM
03/04/18 05:21 PM
Joined: Jun 2013
Posts: 525
Albany, NY
ford46guy Offline OP
ford46guy  Offline OP
Joined: Jun 2013
Posts: 525
Albany, NY
I went to Lexus to get some touchup paint. I started talking to a tech, he told me at 100K if you DIY the coolant, change the WP. Said you can get the Aisin one online for $75. He has an IS350 and just did his at 100k. He told me Toyota pumps like to leak.


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Waterpump as PM? [Re: ford46guy] #4684279
03/04/18 05:28 PM
03/04/18 05:28 PM
Joined: Nov 2008
Posts: 12,543
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,543
NH
Toyota seems to have an issue of late. But IMO unless if your model is known to absolutely eat WP's every 100k I'd just wait for it to go. I mean, they like to weep for a while--it's not like they blow apart all of a sudden, they give indication for a good while.

How hard is it to replace? If it's a 5 minute job, ok fine, no biggie. A couple hours? that's something else.

If it's buried behind the timing belt then I'd replace at TB time, sure. This motor, it's not a TB, right?


2011 Toyota Camry, base, 2.5L/6MT, 163k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 190k, his
Re: Waterpump as PM? [Re: ford46guy] #4684283
03/04/18 05:31 PM
03/04/18 05:31 PM
Joined: Jan 2004
Posts: 4,155
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,155
California
Toyota pumps on the newer cars tend to leak, I'm guessing the newer pink SLLC coolant doesn't play nice with the seals. They were replaced as PM on the older cars with timing belts.

Now, with Zerex's Asian formula using benzoate instead of sebacate for the OAT portion of its inhibitor package, I wonder if the pump can live a longer life before it springs a leak.

Re: Waterpump as PM? [Re: supton] #4684289
03/04/18 05:36 PM
03/04/18 05:36 PM
Joined: Jun 2013
Posts: 525
Albany, NY
ford46guy Offline OP
ford46guy  Offline OP
Joined: Jun 2013
Posts: 525
Albany, NY
Originally Posted By: supton
Toyota seems to have an issue of late. But IMO unless if your model is known to absolutely eat WP's every 100k I'd just wait for it to go. I mean, they like to weep for a while--it's not like they blow apart all of a sudden, they give indication for a good while.

How hard is it to replace? If it's a 5 minute job, ok fine, no biggie. A couple hours? that's something else.

If it's buried behind the timing belt then I'd replace at TB time, sure. This motor, it's not a TB, right?


No TB, maybe 1-2hrs. Lots of bolts.


95 Tbird V8 240K PP SYNTH ULTRA 5W30
98 MGM 160K M1 HM 5W20
96 Explorer EB V6 159K PP SYNTH HM 5W30
95 Conti 155K MC 5W20
11 GS350 90K PP HM 5W30
Re: Waterpump as PM? [Re: ford46guy] #4684296
03/04/18 05:41 PM
03/04/18 05:41 PM
Joined: May 2010
Posts: 9,049
North Carolina
spasm3 Online content
spasm3  Online Content
Joined: May 2010
Posts: 9,049
North Carolina
I'm going to replace my avalanche water pump as a pm. Lots of 3rd gear towing at 2700-3k. I'd rather replace it than have problems on a towing trip.


13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: Waterpump as PM? [Re: ford46guy] #4684299
03/04/18 05:43 PM
03/04/18 05:43 PM
Joined: Oct 2012
Posts: 2,464
Staten Island, NY
michaelluscher Offline
michaelluscher  Offline
Joined: Oct 2012
Posts: 2,464
Staten Island, NY
I remember seeing those new design pumps failing quite early

Think 3.5 2GR V6 or 2.4 2AZ I4

Some of them leaked off the truck, no fix in sight

Toyota's procedure was to hose it down with brake cleaner

If you spin some of these pumps dry by hand, when you take it out of the box (like we all do because spinny thing?) Apparently it can shorten it's life

It has these special carbon ceramic mechanical seals

Not just a rubber or Viton seal anymore

Unless you drive it real hard, or in a hot climate, I don't see the need to change preventatively

Especially as your on a timing chain, not a periodically serviced timing belt

I'd keep an eye out for any pink crusties, or weeping from the weep hole, then change it


'06 Toyota Camry SE V6 3MZ-FE 100k
'01 Mercury Villager Estate VG33E 52k
'06 Ford Taurus SE Vulcan 60k
'13 Chrysler 300 3.6 Pentastar 230k
Re: Waterpump as PM? [Re: ford46guy] #4684301
03/04/18 05:45 PM
03/04/18 05:45 PM
Joined: Dec 2011
Posts: 4,744
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,744
North Carolina
If you have direct access to a water pump and it has over 50k, change it.


"Zed's dead baby, Zed's dead."
Re: Waterpump as PM? [Re: ford46guy] #4684306
03/04/18 05:53 PM
03/04/18 05:53 PM
Joined: Sep 2005
Posts: 5,673
MIchigan
Warstud Online content
Warstud  Online Content
Joined: Sep 2005
Posts: 5,673
MIchigan
If it's a known problem for certain vehicles then YES. But I have almost 300k on my Blazer and it still has the original WP.

Re: Waterpump as PM? [Re: ford46guy] #4684348
03/04/18 06:37 PM
03/04/18 06:37 PM
Joined: Nov 2006
Posts: 19,919
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,919
MA, Mittelfranken.de
Is yours leaking? If not it sounds like you have a good one, I would be tempted to push it out a bit. The one on my MIL car started leaking at 23K so even if you replace it you might be in the same boat soon anyway. Toss a coin.


ASE L1, Master. Deutsch Meisterbrief.
Re: Waterpump as PM? [Re: Trav] #4684376
03/04/18 06:52 PM
03/04/18 06:52 PM
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada


Trouble is, if you wait for the water pump to go, it will go just as you approach the off ramp to the worst hood in town, or perhaps on the way to the airport for your flight to Orlando to see Mickey, or both. smile

Last edited by Snagglefoot; 03/04/18 06:54 PM.

If you want the job done right......do it yourself.
Re: Waterpump as PM? [Re: Snagglefoot] #4684381
03/04/18 06:54 PM
03/04/18 06:54 PM
Joined: Nov 2006
Posts: 19,919
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 19,919
MA, Mittelfranken.de
Pumps usually give a warning time not just let go dumping coolant all over the place.


ASE L1, Master. Deutsch Meisterbrief.
Re: Waterpump as PM? [Re: Warstud] #4684386
03/04/18 06:57 PM
03/04/18 06:57 PM
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada
Originally Posted By: Warstud
If it's a known problem for certain vehicles then YES. But I have almost 300k on my Blazer and it still has the original WP.


ďNever confuse good luck with good judgement.Ē I donít think GM water pumps are known to go 300K. smile

Last edited by Snagglefoot; 03/04/18 06:58 PM.

If you want the job done right......do it yourself.
Re: Waterpump as PM? [Re: Trav] #4684390
03/04/18 06:58 PM
03/04/18 06:58 PM
Joined: Dec 2011
Posts: 4,744
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,744
North Carolina
Originally Posted By: Trav
Pumps usually give a warning time not just let go dumping coolant all over the place.

Unless it's a VW or BMW, lol.


"Zed's dead baby, Zed's dead."
Re: Waterpump as PM? [Re: Trav] #4684393
03/04/18 06:59 PM
03/04/18 06:59 PM
Joined: May 2010
Posts: 9,049
North Carolina
spasm3 Online content
spasm3  Online Content
Joined: May 2010
Posts: 9,049
North Carolina
Originally Posted By: Trav
Pumps usually give a warning time not just let go dumping coolant all over the place.



I've always had them weep a bit or slowly leak. I'm replacing the avalanche one as i have noticed that my temp gauge on a hot day stays about the same place towing at 2500 or so. But if i get over 2700 rpm the heat gauge rises a good bit, not in the danger zone, but just more than i used to see it move years ago.

I'm thinking more about the impeller being worn, so i just feel better on a 15yo tow vehicle, changing it with the hoses and belts.

Last edited by spasm3; 03/04/18 07:00 PM.

13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: Waterpump as PM? [Re: spasm3] #4684409
03/04/18 07:11 PM
03/04/18 07:11 PM
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada
Snagglefoot Offline
Snagglefoot  Offline
Joined: Dec 2017
Posts: 2,333
SE British Columbia, Canada
Originally Posted By: spasm3
I'm going to replace my avalanche water pump as a pm. Lots of 3rd gear towing at 2700-3k. I'd rather replace it than have problems on a towing trip.


Ditto with my Chev 3/4 ton. Itís true they weep first but it can turn to a stream. . Had one do that just before a family trip. I never had time to do it myself so now it turned into a nice repair shop bill.


If you want the job done right......do it yourself.
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