# Car shut down when it's hot

**URL:** <https://community.cartalk.com/t/car-shut-down-when-its-hot/68554>\
**Category:** Maintenance/Repairs\
**Tags:** sc300, lexus\
**Created:** [October 11, 2011, 9:14pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554 "2011-10-11T21:14:11Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![khmerkid09](https://avatars.discourse-cdn.com/v4/letter/k/ecc23a/32.png) [@khmerkid09](https://community.cartalk.com/u/khmerkid09)\
**Post date:** [October 11, 2011, 9:14pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/1 "2011-10-11T21:14:11Z")

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I have a 95 Lexus SC300. When I start the car and later when the engine gets hot, it just shuts down.  
I don’t know what’s wrong with it. I changed the spark plugs and the coil. I’m guessing it is the sensor, but I don’t know if it’s that problem.

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**Author:** ![binkman](https://avatars.discourse-cdn.com/v4/letter/b/82dd89/32.png) [@binkman](https://community.cartalk.com/u/binkman)\
**Post date:** [October 12, 2011, 2:55am UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/2 "2011-10-12T02:55:35Z")

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It’s really a dealership or an import shop experienced with lexus. The computer controls the engine functions. When you mentioned “sensor” do you know how many sensors are on that motor? If it is the temperature sensor somebody has to go into the computer anyway.

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [October 12, 2011, 3:09am UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/3 "2011-10-12T03:09:15Z")

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When it shuts down, find out if it loses fuel or spark (or perhaps both). Pull a plug, use a spare or a spark tester to check for spark. Use some starting fluid into the intake to find out about fuel. (If a shot of starting fluid will get it going even for a few seconds then its about fuel).

If you report back about that, people at least have the options cut down.

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**Author:** ![khmerkid09](https://avatars.discourse-cdn.com/v4/letter/k/ecc23a/32.png) [@khmerkid09](https://community.cartalk.com/u/khmerkid09)\
**Post date:** [October 12, 2011, 8:06pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/4 "2011-10-12T20:06:25Z")

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It’s has spark an no lost fuel

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**Author:** ![khmerkid09](https://avatars.discourse-cdn.com/v4/letter/k/ecc23a/32.png) [@khmerkid09](https://community.cartalk.com/u/khmerkid09)\
**Post date:** [October 12, 2011, 8:16pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/5 "2011-10-12T20:16:00Z")

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but it shut down about 4-5 mins

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [October 12, 2011, 10:59pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/6 "2011-10-12T22:59:56Z")

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If it has both spark and fuel it won’t shut down after 4-5 minutes. One or both of those things are shutting down. Perhaps you could say how you know it has spark & fuel.

That is unless you have some major engine issues. Perhaps its time to take a look at the compression just to rule that out.

Is your check engine light on?

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**Author:** ![khmerkid09](https://avatars.discourse-cdn.com/v4/letter/k/ecc23a/32.png) [@khmerkid09](https://community.cartalk.com/u/khmerkid09)\
**Post date:** [October 12, 2011, 11:47pm UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/7 "2011-10-12T23:47:26Z")

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the check engine light it on but i cant drive it the garage shop to check it and i already check the spark an the fuel

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [October 13, 2011, 12:08am UTC](https://community.cartalk.com/t/car-shut-down-when-its-hot/68554/8 "2011-10-13T00:08:18Z")

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This is me giving up
