# 2006 Jeep Wrangler - Boiling coolant

**URL:** <https://community.cartalk.com/t/2006-jeep-wrangler-boiling-coolant/137959>\
**Category:** Maintenance/Repairs\
**Tags:** jeep\
**Created:** [April 5, 2019, 3:48am UTC](https://community.cartalk.com/t/2006-jeep-wrangler-boiling-coolant/137959 "2019-04-05T03:48:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Clement](https://avatars.discourse-cdn.com/v4/letter/c/7ba0ec/32.png) [@Clement](https://community.cartalk.com/u/Clement)\
**Post date:** [April 5, 2019, 3:48am UTC](https://community.cartalk.com/t/2006-jeep-wrangler-boiling-coolant/137959/1 "2019-04-05T03:48:13Z")

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Hello my wrangler jeep is temperature reading normal, but it is boiling in the bottle side of the radiator

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [April 5, 2019, 4:40am UTC](https://community.cartalk.com/t/2006-jeep-wrangler-boiling-coolant/137959/2 "2019-04-05T04:40:35Z")

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Sounds like the radiator cap is not holding pressure, if so the coolant will boil at normal operating temperatures. Is the radiator and reservoir full?