# Volvo Radiator Leak that cant be found

**URL:** <https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451>\
**Category:** Maintenance/Repairs\
**Tags:** s70, volvo\
**Created:** [July 7, 2010, 9:43pm UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451 "2010-07-07T21:43:29Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![sharontw](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@sharontw](https://community.cartalk.com/u/sharontw)\
**Post date:** [July 7, 2010, 9:43pm UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/1 "2010-07-07T21:43:29Z")

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My S70 Volvo leaks coolant but we can’t find a leak. They have run a pressure test and nothing also we flushed out the radiator but still nothing.

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [July 7, 2010, 9:46pm UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/2 "2010-07-07T21:46:33Z")

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Heater core? Check all the hoses that handle the coolant (radiator to the engine to the heater core…)

Have you checked to make sure you don’t have a head gasket problem?

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**Author:** ![Techniker](https://avatars.discourse-cdn.com/v4/letter/t/bcef8e/32.png) [@Techniker](https://community.cartalk.com/u/Techniker)\
**Post date:** [July 7, 2010, 9:55pm UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/3 "2010-07-07T21:55:57Z")

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- 1 to Joseph.

If all of this fails…there is one final option, but I am sure it will get me attacked here.

-Techniker

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**Author:** ![sharontw](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@sharontw](https://community.cartalk.com/u/sharontw)\
**Post date:** [July 8, 2010, 1:35am UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/4 "2010-07-08T01:35:06Z")

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I put in a new heater core and that didn’t fix the problem

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**Author:** ![sharontw](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@sharontw](https://community.cartalk.com/u/sharontw)\
**Post date:** [July 8, 2010, 1:35am UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/5 "2010-07-08T01:35:41Z")

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what is you final option

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**Author:** ![waterboy](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/waterboy/32/764_2.png) [@waterboy](https://community.cartalk.com/u/waterboy)\
**Post date:** [July 8, 2010, 1:44am UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/6 "2010-07-08T01:44:58Z")

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Bad radiator cap?

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**Author:** ![sharontw](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@sharontw](https://community.cartalk.com/u/sharontw)\
**Post date:** [July 8, 2010, 1:48am UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/7 "2010-07-08T01:48:48Z")

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I go see if I can find one. Thanks

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**Author:** ![sharontw](https://avatars.discourse-cdn.com/v4/letter/s/a88e4f/32.png) [@sharontw](https://community.cartalk.com/u/sharontw)\
**Post date:** [July 8, 2010, 2:18am UTC](https://community.cartalk.com/t/volvo-radiator-leak-that-cant-be-found/51451/8 "2010-07-08T02:18:03Z")

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Just picked up the radiator cap will try it tomorrow. Thanks again