# Car won\`t start when reaching operating temp

**URL:** <https://community.cartalk.com/t/car-won-t-start-when-reaching-operating-temp/64350>\
**Category:** Maintenance/Repairs\
**Created:** [May 3, 2011, 2:37pm UTC](https://community.cartalk.com/t/car-won-t-start-when-reaching-operating-temp/64350 "2011-05-03T14:37:32Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Jimbo](https://avatars.discourse-cdn.com/v4/letter/j/d78d45/32.png) [@Jimbo](https://community.cartalk.com/u/Jimbo)\
**Post date:** [May 3, 2011, 2:37pm UTC](https://community.cartalk.com/t/car-won-t-start-when-reaching-operating-temp/64350/1 "2011-05-03T14:37:32Z")

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I have a`94 Buick LeSabre Limited with a 3800 engine. When the engine`s cold,it starts fine and drives fine.  
When it reaches operating temp,if you shut it off  
It will crank but not start back up untill it`s cold again. I`ve replaced the crank and cam sensors but no change.

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**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:** [May 3, 2011, 3:41pm UTC](https://community.cartalk.com/t/car-won-t-start-when-reaching-operating-temp/64350/2 "2011-05-03T15:41:54Z")

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The problem might be with an ignition module that’s sensative to heat. Have you tested for spark when the engine doesn’t start?

Tester

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**Author:** ![Jimbo](https://avatars.discourse-cdn.com/v4/letter/j/d78d45/32.png) [@Jimbo](https://community.cartalk.com/u/Jimbo)\
**Post date:** [May 3, 2011, 4:07pm UTC](https://community.cartalk.com/t/car-won-t-start-when-reaching-operating-temp/64350/3 "2011-05-03T16:07:31Z")

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haven’t checked that yet