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Quick Links: Inside Cab Storage 2003 Tacoma 12V source wire Diffs, trans, and t-case fluids? How much and what weight? I tow heavy with my first gen. How can I monitor trans temp? Bleed coolant system?? 2002 Tacoma prerunner v6 3.4l Battery post connectors

Leaking Oil Cooler

Discussion in '1st Gen. Tacomas (1995-2004)' started by Mhelvic, Oct 15, 2017.

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Page 2 of 2

Jan 26, 2021 at 12:31 PM

#21

#21
Scott54 Member

Joined:

May 18, 2020

Member:

#328444

Messages:

7

Gender:

Male

First Name:

Scott

Vehicle:

1997 Tacoma

I just did it without draining the oil or coolant. It does leak but not a ton, less than a quart of fluid. The hard part is getting in there to grab the old gasket and seat the new one, because you won't be able to pull it away from the truck more than a few inches with the hoses still attached. It worked out fine for me.

Scott54, Jan 26, 2021

#21

Jun 13, 2025 at 8:24 AM

#22

#22
cypresssneeze New Member

Joined:

May 24, 2022

Member:

#397878

Messages:

3

Vehicle:

2000 Black Tacoma PreRunner

Thanks to everyone in this thread! I'm contending with the same problem right now and glad to know it's probably not a huge deal / expensive fix.

cypresssneeze, Jun 13, 2025

#22

Jun 13, 2025 at 9:09 AM

#23

#23
shankyjones Well-Known Member

Joined:

Dec 28, 2020

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#350956

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518

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Richard

Marina CA

Vehicle:

2003 Brown Tacoma Prerunner V6 3.4L TRD

No need to drain your coolant. The large oring might be a little big so before you install put it in the freezer the night before.

shankyjones, Jun 13, 2025

#23

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Page 2 of 2

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