1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

DIY 2nd Gen Water pump replacement

Discussion in '2nd Gen. Tacomas (2005-2015)' started by 05sctaco, Feb 24, 2012.

  1. Feb 24, 2012 at 1:55 AM
    #1
    05sctaco

    05sctaco [OP] Well-Known Member

    Joined:
    Jun 18, 2007
    Member:
    #1868
    Messages:
    905
    Gender:
    Male
    First Name:
    Ken
    Santa Cruz
    DIY 2nd Gen water pump.

    This write up is for information only, I take no responsibility for damages, and it is your choice to perform work on your vehicle. I purchased parts from rockauto.com. Please use common sense, don’t work on your truck when the engine is hot.


    Tools needed:
    Socket extension, Ratchet , 10mm, 12mm, 14mm socket, Vise grips , Flat head, Thread lock.

    Parts:
    Thermostat with black housing (do not buy just the thermostat once I removed it and looked at the one they sent me it is not correct), Water pump w/ gasket (Aisin is what I used), thermostat O ring, water pump O ring, new radiator hoses (optional), hose clamps (optional).


    Step 1.
    Remove the Radiator top shroud.


    Step 2.
    Empty the radiator fluid the peacock is next to the driver side tire. Take care not to break it.
    Empty the coolant in the engine, there is a drain plug on each side of the engine block.


    Step 3.
    Remove the top and bottom radiator hose, remove radiator hose from over fill tank.


    Step 4.
    Unbolt the fan from the water pump, unbolt the fan shroud, holding both lift up and out of engine compartment.



    Step 5.
    It is optional to remove the air box all the way to the throttle body but not required, I did not do this.


    Step 6.
    Remove serpentine belt.

    [​IMG]
    [​IMG]


    Step 7.
    Unbolt water pump in a star pattern, and thermostat assembly. Look in picture of water pump. Use your hand to feel around for hidden bolts. The upper assembly where the top radiator hose attaches to has two hidden bolts, one on each side of the bottom. Also you’ll need to move the belt tensioner to get to the bolt behind it. Unbolt 2 pulleys.

    [​IMG]
    [​IMG]
    [​IMG]

    Step 8.
    Place towels to catch excess coolant from water pump. Remove water pump . it’s a little tricky with the upper assembly but you can manage to slide it out. Next remove water pump gasket.

    [​IMG]
    [​IMG]
    [​IMG]


    Step 9.
    With new water pump add the O ring, remove old thermostat w/ housing and place in new O ring and thermostat w/ housing (you can see the black housing in pic one).

    [​IMG]

    OEM water pump is made by Aisin.

    [​IMG]

    so is the block.

    Step 10.
    Repeat steps in reverse for installing water pump. Bolt with a little thread lock and in star pattern, Do not over torque the bolts, and it would seem like they’ll keep spinning.

    [​IMG]

    New pump new pulley's. :D

    Step 11.
    Fill radiator with Toyota super long life coolant, or whatever one is compatible. Start engine with heater on full, thermostat is at 180-185 degree’s to open. Warm up, cool down, add more coolant. I.E. Burp the system. You are more than welcome to flush the radiator and engine, but my coolant was pink, clean, and non burnt smelling.
     
  2. Feb 25, 2012 at 12:12 AM
    #2
    05sctaco

    05sctaco [OP] Well-Known Member

    Joined:
    Jun 18, 2007
    Member:
    #1868
    Messages:
    905
    Gender:
    Male
    First Name:
    Ken
    Santa Cruz
    wow no one even cares. :(
     
    ninja89 likes this.
  3. Feb 25, 2012 at 12:47 AM
    #3
    fixer5000

    fixer5000 the logical one

    Joined:
    Aug 7, 2011
    Member:
    #61293
    Messages:
    651
    Gender:
    Male
    First Name:
    Steve
    massachusetts
    Vehicle:
    11 trd sport longbed
    weathertech visors,remote start,lojack, ARE z type topper, wet okole seat covers, pop n lock tailgate lock
    of course we care...nice job and great sharp pictures too...thanks...hopefully i wont have to do this for quite a while. this should be stickied
     
    TAC1 likes this.
  4. Feb 25, 2012 at 2:13 AM
    #4
    05sctaco

    05sctaco [OP] Well-Known Member

    Joined:
    Jun 18, 2007
    Member:
    #1868
    Messages:
    905
    Gender:
    Male
    First Name:
    Ken
    Santa Cruz
    Thanks, the whole job cost the equivilent of a water pump bought from the dealer.

    Water pump $92
    Thermo w/shroud $31
    Thermo gasket $2
    Water pump O ring $1.50
    Coolant $50 or reuse
     
  5. Feb 25, 2012 at 3:22 AM
    #5
    blackhawke88

    blackhawke88 wo ai ni bao bei ^_^

    Joined:
    Jan 11, 2009
    Member:
    #12478
    Messages:
    16,670
    Gender:
    Male
    SGV, CA
    Vehicle:
    07 TRD Offroad
    Good job Ken!!!! :thumbsup:
     
  6. Feb 25, 2012 at 4:02 AM
    #6
    cmoore

    cmoore Member

    Joined:
    Mar 24, 2011
    Member:
    #53609
    Messages:
    23
    Gender:
    Male
    First Name:
    Charlie
    Dallas, Texas
    Vehicle:
    PreRunner
    Ken, how many miles on the Taco when the water pump went bad? Great job and nice write up.
     
  7. Feb 25, 2012 at 5:04 AM
    #7
    fixnfly

    fixnfly Well-Known Member

    Joined:
    Oct 1, 2011
    Member:
    #64450
    Messages:
    236
    Gender:
    Male
    First Name:
    Mike
    S.W.PA
    Vehicle:
    05 Access cab 4.0 4WD

    Yea, what he said! How many miles?

    Nice write up with pics!
     
  8. Feb 25, 2012 at 8:52 AM
    #8
    sytfu510

    sytfu510 INSTAGRAM: sytfu510

    Joined:
    Aug 27, 2011
    Member:
    #62453
    Messages:
    4,479
    Gender:
    Male
    First Name:
    Alex
    Bay Area
    Vehicle:
    06 DBL Cab Long Bed TRD Sport
    Dirt Designs LT kit DMZ LT Kit TRD Supercharger SCS Wheels BAMF
    nice write up! + rep'd
     
  9. Feb 25, 2012 at 10:37 AM
    #9
    05sctaco

    05sctaco [OP] Well-Known Member

    Joined:
    Jun 18, 2007
    Member:
    #1868
    Messages:
    905
    Gender:
    Male
    First Name:
    Ken
    Santa Cruz
    the pump went out around 85k, but searching theforums shows that itsbeen going out at low miles, like between 10-100k which is a large spread.
     
  10. Feb 25, 2012 at 12:27 PM
    #10
    fixnfly

    fixnfly Well-Known Member

    Joined:
    Oct 1, 2011
    Member:
    #64450
    Messages:
    236
    Gender:
    Male
    First Name:
    Mike
    S.W.PA
    Vehicle:
    05 Access cab 4.0 4WD
    That sure is one strange looking water pump:der:
     
  11. Apr 27, 2012 at 10:55 PM
    #11
    taco084gb

    taco084gb No matter where you go there you are.

    Joined:
    Dec 2, 2008
    Member:
    #11225
    Messages:
    1,357
    Gender:
    Male
    First Name:
    Galen
    NorCal
    THANX KEN. Well Im going to replace the wifes truck water pump tomorrow. She only has 54,000 miles on it. I had to replace mine at 80,000. Great pics as well.
     
  12. Apr 28, 2012 at 1:12 PM
    #12
    Peru

    Peru Well-Known Member

    Joined:
    Aug 8, 2009
    Member:
    #20837
    Messages:
    312
    Gender:
    Male
    First Name:
    Jonathan
    Redmond WA
    Vehicle:
    SR5 -- V6 -- 2005 -- 4X4
    none
    good post

    what were the symptoms?

    Never had a water pump go bad -- i guess the engine temp light comes on and it either the thermostat or the pump
     
  13. Apr 28, 2012 at 6:51 PM
    #13
    Coupe

    Coupe Well-Known Member

    Joined:
    Feb 10, 2009
    Member:
    #13485
    Messages:
    1,640
    Gender:
    Male
    Houston, Texas
    Vehicle:
    08 X-Runner
    Lots baby!
    Nice write up.
     
  14. Apr 28, 2012 at 7:25 PM
    #14
    1GR

    1GR Toyota Dealer Technician

    Joined:
    Oct 24, 2009
    Member:
    #24837
    Messages:
    585
    Gender:
    Male
    First Name:
    Scott
    BC, Canada
    Vehicle:
    2012 Tacoma DCLB TRD Sport
    Water pump usually "fails" by form of leak, or by making noise. Never seen the fins actually fail.
     
    thewarriordinghy likes this.
  15. Apr 29, 2012 at 7:24 AM
    #15
    Skyv118

    Skyv118 Member

    Joined:
    Apr 12, 2012
    Member:
    #76775
    Messages:
    16
    Gender:
    Male
    First Name:
    Luis
    Shreveport,La
    Vehicle:
    2010 SR5 TACO TSS
    22s, SS grill, Carbon dash kit
    Just replaced my water pump this weekend, this thread was extremely usefull and saved me a mechanic bill. Thanks!
     
  16. Mar 20, 2013 at 5:51 PM
    #16
    ExpoSpy

    ExpoSpy Well-Known Member

    Joined:
    Nov 1, 2009
    Member:
    #25260
    Messages:
    664
    Gender:
    Male
    First Name:
    Brian
    S.D.
    Vehicle:
    08 DCLB 4X4
    I know this is an old thread but where did you get the parts from? Do you possibly have the part #'s.
     
  17. Mar 21, 2013 at 4:35 AM
    #17
    medusa1066

    medusa1066 Well-Known Member

    Joined:
    Oct 19, 2011
    Member:
    #65457
    Messages:
    193
    Gender:
    Male
    First Name:
    Jonathan
    Morgantown, WV
    Vehicle:
    2007 4x4 TRD Sport
    I got mine cheapest from Rock Auto and Amazon.com

    4.0L V6

    Aisin WPT-802 Engine Water Pump (comes with Gasket)
    Sold by: Amazon.com LLC

    Dayco 7PVK2120 Serpentine Belt
    Sold by: Amazon.com LLC

    Stant 48778 XACTStat 180 Degrees Fahrenheit Thermostat (comes with gasket)
    Sold by: Amazon.com LLC

    x2 Gates 36173 Idler Pulley - Amazon
    x1 Gates 38411 Belt Tensioner - Amazon
    x1 Gates 36174 Idler Pulley - Amazon

    Coolant Outlet O-Ring FEL-PRO 35654 - Rock Auto

    I think that covers it. Please don't hate me if I missed a gasket and you have your rig torn apart :]
     
    Last edited: Mar 21, 2013
  18. Mar 21, 2013 at 11:17 AM
    #18
    western88

    western88 Chris b.

    Joined:
    Jan 21, 2013
    Member:
    #95696
    Messages:
    547
    Gender:
    Male
    First Name:
    Chris
    ny countryside
    Vehicle:
    2014 SR5 4x4 taco Barclona Red
    beather mod Bugsheild backup light mod egr vent
    subed for future use.. nice write up
     
  19. Mar 21, 2013 at 4:21 PM
    #19
    penguins_cc

    penguins_cc Well-Known Member

    Joined:
    Aug 18, 2010
    Member:
    #41874
    Messages:
    2,189
    Gender:
    Male
    First Name:
    Will
    Bellevue, WA
    Vehicle:
    Timberland Mica Limo!
    Perkins Performance Sliders, Warn 9000, Brute Force Fab front & rear bumper, OME/Dakar lift, full ATO skids and hi-lift mount, satoshi, Wet Okoles, illuminated 4x4 switch, Diff Breather.
    Every time I've replaced a timing belt, the suggestion was to also replace the water pump. Would this be a lot of the similar steps a timing belt/chain replacement would require? Does it make any sense to change the timing belt/chain on the truck at the same time?
     
  20. Mar 21, 2013 at 4:44 PM
    #20
    iroh

    iroh Well-Known Member

    Joined:
    Oct 18, 2011
    Member:
    #65439
    Messages:
    1,398
    Gender:
    Male
    michigander
    Vehicle:
    07 AC SR5 2.7 5MT 4x4
    tonneau
    Totally different.

    Tacoma water pumps are driven by the serpentine belt which is comparatively easy to get to. For vehicles that use the timing belt to drive the water pump (common example: every pre-2006 Honda Civic), since the lifetime of the water pump will probably not be two timing belts (lots of cars this is 200k+ miles), and it's a lot of labor cost to take it apart that far, it's cheap insurance to change it out when you're in there.

    We have timing chains. Good for a quarter million or more miles.
     
To Top