# Coolant leak **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** lesabre, buick\ **Created:** [January 28, 2010, 4:57pm UTC](https://community.cartalk.com/t/coolant-leak/43356 "2010-01-28T16:57:36Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Cacheman\_007](https://avatars.discourse-cdn.com/v4/letter/c/7ea924/32.png) [@Cacheman\_007](https://community.cartalk.com/u/Cacheman_007)\ **Post date:** [January 28, 2010, 4:57pm UTC](https://community.cartalk.com/t/coolant-leak/43356/1 "2010-01-28T16:57:36Z")
My 2003 Buick leasable has a liquid on top on engine I think is antifreeze and I recently got a code on the liquid coolant sending unit. I have to add coolant, but car has never been real low of fluid or hot. What do you think is this a common problem with this car? Where is the coolant sending unit? ---
**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 28, 2010, 6:28pm UTC](https://community.cartalk.com/t/coolant-leak/43356/2 "2010-01-28T18:28:30Z")
The most common cause for coolant on top of the engine on your vehicle are failed intake manifold gaskets. Have you checked the condition of the engine oil? Tester ---
**Author:** ![Cacheman\_007](https://avatars.discourse-cdn.com/v4/letter/c/7ea924/32.png) [@Cacheman\_007](https://community.cartalk.com/u/Cacheman_007)\ **Post date:** [January 28, 2010, 10:29pm UTC](https://community.cartalk.com/t/coolant-leak/43356/3 "2010-01-28T22:29:44Z")
Have oil changed at local garage and never noticed and sign of water in oil, no milkey look. What do you think about coolant sealer? ---
**Author:** ![golfnut](https://avatars.discourse-cdn.com/v4/letter/g/ad7895/32.png) [@golfnut](https://community.cartalk.com/u/golfnut)\ **Post date:** [January 28, 2010, 10:45pm UTC](https://community.cartalk.com/t/coolant-leak/43356/4 "2010-01-28T22:45:43Z")
i have a 2004 Buick lesabre that smelled for quite a while of coolant smell. i finally noticed that it was leaking slightly from the intake manifold gasket. a usual problem for this car. some blamed dex cool-- some said no. it really did not leak much---- but the smell ( not inside) but when you got out of the car was brutal. i had it fixed by my mechanic. so far so good. i was worried it would some how ruin my engine if the leak got worse. i think it cost between 300 to 400 to get it fixed. i had a couple of new tires put on so i don’t remember the exact cost just for the gasket fix. but it’s close. i love my car so it was worth it. good luck ---
**Author:** ![Skypilot](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/skypilot/32/237_2.png) [@Skypilot](https://community.cartalk.com/u/Skypilot)\ **Post date:** [January 28, 2010, 10:46pm UTC](https://community.cartalk.com/t/coolant-leak/43356/5 "2010-01-28T22:46:32Z")
Don’t know where your thermostat is located at but if its mounted on top of the engine you might check to see if the thermostat houseing or hose is leaking.