# 2011 Buick LaCrosse - Engine locked up **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** buick\ **Created:** [August 14, 2019, 2:48pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706 "2019-08-14T14:48:14Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![anderson12](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@anderson12](https://community.cartalk.com/u/anderson12)\ **Post date:** [August 14, 2019, 2:48pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/1 "2019-08-14T14:48:15Z")
DRIVING on I 85 in ga. going 70 mph with grandchildren in car. it shut off and the motor locked up. A mechanic came to the house and said the motor was completed locked. The car is in excellent condition and the oil was changed about a month ago. never burns oil, never leaks fluids. has 96 thousand miles.?? ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [August 14, 2019, 3:00pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/2 "2019-08-14T15:00:16Z")
Sorry to hear that. Your question is?? Things happen. Is there enough oil in the car right now? Low or no oil would provide a reason why it locked up. If the underside of the oil cap looks like you barbecued a pig in there, you have oil sludge that caused the engine to fail. That is caused by not changing the oil often enough. In any event, you need a new engine. ---
**Author:** ![GorehamJ](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/gorehamj/32/24103_2.png) [@GorehamJ](https://community.cartalk.com/u/GorehamJ)\ **Post date:** [August 15, 2019, 9:02pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/3 "2019-08-15T21:02:47Z")
Hat’s off to the mechanic that came to the house. ---
**Author:** ![eddo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/eddo/32/2594_2.png) [@eddo](https://community.cartalk.com/u/eddo)\ **Post date:** [August 15, 2019, 9:14pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/4 "2019-08-15T21:14:55Z")
Don’t be afraid to get a second, hands on opinion. ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [August 15, 2019, 9:20pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/5 "2019-08-15T21:20:05Z")
Can you check oil level? It’s easy. If you want too, just ask. ---
**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\ **Post date:** [August 15, 2019, 10:21pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/6 "2019-08-15T22:21:39Z")
Two questions Does the car have a 2.4 4 cyl or the 3.6 6 cyl engine? The 2.4 had issues with excessive oil consumption due to premature wear of the piston oil control rings. Do you check your oil level between changes? Ed B. ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [August 15, 2019, 10:55pm UTC](https://community.cartalk.com/t/2011-buick-lacrosse-engine-locked-up/146706/7 "2019-08-15T22:55:26Z")
This house call mechanic should have been able to tell you why it locked up. The usual cause is lack of oil. If your mechanic did not pull the dipstick to check the oil level then he’s on pretty shaky ground as a mechanic.