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Help identify coolant leak!

Discussion in '2nd Gen. Tacomas (2005-2015)' started by caffiend, Sep 27, 2020.

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Sep 27, 2020 at 3:22 PM

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caffiend [OP] Well-Known Member

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From the photos, can anyone identify where this coolant leak may be coming from?

caffiend, Sep 27, 2020

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Sep 27, 2020 at 3:27 PM

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Bishop84 Well-Known Member

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Take a picture from underneath.

It looks like a water pump leak.

Bishop84, Sep 27, 2020

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caffiend[OP] and wilcam47 like this.

Sep 27, 2020 at 3:42 PM

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tacoresto Active Member

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tacoresto, Sep 27, 2020

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Sep 27, 2020 at 3:43 PM

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T-yoda Well-Known Member

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I’m dizzy! Maybe water pump cuz it looks like the belt maybe slinging coolant??

T-yoda, Sep 27, 2020

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caffiend[OP] likes this.

Sep 27, 2020 at 3:45 PM

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tacoresto Active Member

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My truck leaks coolant. Not a slow leak but more like a vomit. It happens right when I turn it off. Don’t know where it comes from

tacoresto, Sep 27, 2020

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Sep 27, 2020 at 3:47 PM

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T-yoda Well-Known Member

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tacoresto said: ↑

My truck leaks coolant. Not a slow leak but more like a vomit. It happens right when I turn it off. Don’t know where it comes from
Click to expand...

Lol, sounds like you need to take it in and have this looked at before you do anymore damage

T-yoda, Sep 27, 2020

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Sep 27, 2020 at 3:57 PM

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T-yoda Well-Known Member

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FYI... if it is the water pump... plz buy a Toyota oem pump.... Iv seen so many after market junk it’s not funny anymore.

T-yoda, Sep 27, 2020

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TOMB and caffiend[OP] like this.

Sep 27, 2020 at 4:39 PM

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muddog321 Well-Known Member

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Go to the auto store and rent a free radiator pressure tester and pump it up look for the leak.
Then you know.

muddog321, Sep 27, 2020

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Monkeybutt2000, caffiend[OP], cytocycle and 1 other person like this.

Sep 27, 2020 at 8:23 PM

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Lester Lugnut Well-Known Member

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muddog321 said: ↑

Go to the auto store and rent a free radiator pressure tester and pump it up look for the leak.
Then you know.
Click to expand...

Yep.

Lester Lugnut, Sep 27, 2020

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Sep 28, 2020 at 6:22 AM

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nasaengr Well-Known Member

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I would replace that hose clamp first. Looks like it might have a tab broken off.
EDIT: just checked my clamp and it looks like yours. Still might want to replace the clamp and hose.

Last edited: Sep 28, 2020

nasaengr, Sep 28, 2020

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12TRDTacoma and caffiend[OP] like this.

Sep 28, 2020 at 6:31 AM

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Knute Well-Known Member

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Do you have any flour or talcum powder in the house?

If so, then try dusting the area with the powder. Take it for a short drive at operating temperature. The leak should show tracks in the powder. Follow the track.

Knute, Sep 28, 2020

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RepoMarket and caffiend[OP] like this.

Oct 4, 2020 at 2:46 PM

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caffiend [OP] Well-Known Member

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I finally located the leak! At the thermostat inlet. Should I replace the Thermostat inlet or just the O-ring?

Last edited: Oct 4, 2020

caffiend, Oct 4, 2020

#12

Oct 4, 2020 at 2:52 PM

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caffiend[OP] said: ↑

I finally located the leak! At the inlet sub assembly. Should I replace the sub assembly or just the O-ring?

Click to expand...

If you have access to the o-ring you can try just replacing that. However, I would just replace the sub assembly especially since you are going to do all the work required to be in there, just get all of it out if the way so there's no remaining question marks.

12TRDTacoma, Oct 4, 2020

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caffiend[QUOTED][OP] likes this.

Oct 4, 2020 at 3:10 PM

#14

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caffiend [OP] Well-Known Member

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Just ordered the inlet sub-assy

$50 16031-0P010 TOYOTA Genuine Parts - Inlet Sub-Assy, Wate (16031-0P010)

16031-0P010

caffiend, Oct 4, 2020

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BassAckwards likes this.

Oct 8, 2020 at 6:24 PM

#15

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caffiend [OP] Well-Known Member

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Fixed! The leak was caused by the bad oring in the inlet sub-assy

$50 TOYOTA Genuine Parts - Inlet Sub-Assy, Wate (16031-0P010)

16031-0P010

Last edited: Oct 9, 2020

caffiend, Oct 8, 2020

#15

Torspd likes this.

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TOYOTA Genuine Parts - Inlet Sub-Assy, Wate (16031-0P010)