# Losing Coolant **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** xc90, volvo\ **Created:** [August 26, 2009, 2:59pm UTC](https://community.cartalk.com/t/losing-coolant/35629 "2009-08-26T14:59:45Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Barbara\_Doll](https://avatars.discourse-cdn.com/v4/letter/b/53a042/32.png) [@Barbara\_Doll](https://community.cartalk.com/u/Barbara_Doll)\ **Post date:** [August 26, 2009, 2:59pm UTC](https://community.cartalk.com/t/losing-coolant/35629/1 "2009-08-26T14:59:45Z")
I keep losing the coolant after aproximately 600 or so miles. I had my shop put it on a test and they put it under a pressure test and could not find a leak. They told me to replace the coolant cap and that did nothing. ---
**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\ **Post date:** [August 26, 2009, 8:53pm UTC](https://community.cartalk.com/t/losing-coolant/35629/2 "2009-08-26T20:53:10Z")
Start the engine from cold and watch for drips underneath for 10 minutes while it warms up. I have seen a water pump leak intermittently while the engine warms up. ---
**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:** [August 27, 2009, 11:08pm UTC](https://community.cartalk.com/t/losing-coolant/35629/3 "2009-08-27T23:08:32Z")
I can confirm the possibility that circuitsmith suggested. If this is the case, the water pump is ready to blow. However, I’d want to check for a headgasket breech also. That can be done in s number of ways, including a check of the coolant for evidence of hydrocarbons and a pressure leakdown test of the cylinders. Coolant could be getting drawn in through a breech and burned with the fuel (pushed out the exhaust as vapor).