# Coolant leak

**URL:** <https://community.cartalk.com/t/coolant-leak/42429>\
**Category:** Maintenance/Repairs\
**Tags:** tacoma, toyota\
**Created:** [January 13, 2010, 12:45am UTC](https://community.cartalk.com/t/coolant-leak/42429 "2010-01-13T00:45:14Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![toy4me](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@toy4me](https://community.cartalk.com/u/toy4me)\
**Post date:** [January 13, 2010, 12:45am UTC](https://community.cartalk.com/t/coolant-leak/42429/1 "2010-01-13T00:45:14Z")

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My trucks radiator is wet with coolant but I can not figure out where it is coming from.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [January 13, 2010, 12:51am UTC](https://community.cartalk.com/t/coolant-leak/42429/2 "2010-01-13T00:51:08Z")

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Well? if the radiator is wet, it must be coming from the radiator?

Tester

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [January 13, 2010, 12:54am UTC](https://community.cartalk.com/t/coolant-leak/42429/3 "2010-01-13T00:54:29Z")

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Try having a pressure test done of the system.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [January 13, 2010, 12:59am UTC](https://community.cartalk.com/t/coolant-leak/42429/4 "2010-01-13T00:59:37Z")

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Probably a seam leak. Time to replace.

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [January 13, 2010, 2:02am UTC](https://community.cartalk.com/t/coolant-leak/42429/5 "2010-01-13T02:02:12Z")

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Dry it off. if hot and under pressure, you should see a leak.

Hoses, seams, from under the rad cap, from the core?

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**Author:** ![william\_lang](https://avatars.discourse-cdn.com/v4/letter/w/b487fb/32.png) [@william\_lang](https://community.cartalk.com/u/william_lang)\
**Post date:** [January 13, 2010, 2:33am UTC](https://community.cartalk.com/t/coolant-leak/42429/6 "2010-01-13T02:33:38Z")

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Go with the simplest things (and cheapest) first. Check the hoses for leaks and replace the radiator cap (if has one on the radiator). Otherwise like the man said, get the radiator pressure tested.

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**Author:** ![toy4me](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@toy4me](https://community.cartalk.com/u/toy4me)\
**Post date:** [January 15, 2010, 3:05am UTC](https://community.cartalk.com/t/coolant-leak/42429/7 "2010-01-15T03:05:45Z")

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I replaced the radiator cap.Continual fluid loss.Then I installed a new radiator.No leaks now.The recent cold weather caused the metal clamps to contract and started the leaks.Thanks for the suggestions.

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**Author:** ![toy4me](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@toy4me](https://community.cartalk.com/u/toy4me)\
**Post date:** [January 15, 2010, 3:08am UTC](https://community.cartalk.com/t/coolant-leak/42429/8 "2010-01-15T03:08:15Z")

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By the way it is a 1998 Toyota Tacoma 154000 miles.Original 4 cylinder motor and a 3 month old rebuilt transmission.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [January 15, 2010, 3:16am UTC](https://community.cartalk.com/t/coolant-leak/42429/9 "2010-01-15T03:16:18Z")

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Sorry, cold weather won’t cause the clamps to contract enough to cause a leak. Being a '98, it’s old enough for fatigue to set in. Just make sure your motor mounts are OK, if they’re bad they’ll let the engine rock a lot, with the radiator hose rocking back and forth, causing the radiator to crack at the inlet. Happened to me.

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**Author:** ![toy4me](https://avatars.discourse-cdn.com/v4/letter/t/e56c9b/32.png) [@toy4me](https://community.cartalk.com/u/toy4me)\
**Post date:** [January 15, 2010, 3:51pm UTC](https://community.cartalk.com/t/coolant-leak/42429/10 "2010-01-15T15:51:16Z")

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I do have vibration from the engine at idle ,so I will check my motor mounts.
