# 2002 Mercury Grand Marquis - Overheat Alert/Engine Shutting Down **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [September 11, 2019, 2:11pm UTC](https://community.cartalk.com/t/2002-mercury-grand-marquis-overheat-alert-engine-shutting-down/148529 "2019-09-11T14:11:13Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![DorothyGibson](https://avatars.discourse-cdn.com/v4/letter/d/a88e57/32.png) [@DorothyGibson](https://community.cartalk.com/u/DorothyGibson)\ **Post date:** [September 11, 2019, 2:11pm UTC](https://community.cartalk.com/t/2002-mercury-grand-marquis-overheat-alert-engine-shutting-down/148529/1 "2019-09-11T14:11:14Z")
While driving my car, the temperature light keeps coming on and sometimes, the car sputters and shuts down. It’s happened quite a few times and I’m now driving local streets in fear of an accident. We changed a couple sensors, installed a new battery, new thermostat and alternator. The problem still persists; but, not as bad a before. ---
**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:** [September 11, 2019, 2:13pm UTC](https://community.cartalk.com/t/2002-mercury-grand-marquis-overheat-alert-engine-shutting-down/148529/2 "2019-09-11T14:13:43Z")
You need to find a better mechanic. If you keep overheating the engine you will destroy it. ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [September 11, 2019, 3:24pm UTC](https://community.cartalk.com/t/2002-mercury-grand-marquis-overheat-alert-engine-shutting-down/148529/3 "2019-09-11T15:24:03Z")
On a 2002 your radiator is probably partially clogged with rust and scale, and possibly needs a new water pump too. The electric fan motor may not be functioning correctly. As Mustangman said, you need a better mechanic.