# Stalling an engine

**URL:** <https://community.cartalk.com/t/stalling-an-engine/2331>\
**Category:** Maintenance/Repairs\
**Tags:** stalling\
**Created:** [July 28, 2007, 5:58pm UTC](https://community.cartalk.com/t/stalling-an-engine/2331 "2007-07-28T17:58:29Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![lhoyen](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lhoyen](https://community.cartalk.com/u/lhoyen)\
**Post date:** [July 28, 2007, 5:58pm UTC](https://community.cartalk.com/t/stalling-an-engine/2331/1 "2007-07-28T17:58:29Z")

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I have a 1997 dodge w/cummins diesel-the problem is every time I have the air condition on the truck stalls, as soon as I let off the pedal. It has been very dangerous as it has stalled in the middle of turning and going down hills etc.,

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [July 30, 2007, 1:51am UTC](https://community.cartalk.com/t/stalling-an-engine/2331/2 "2007-07-30T01:51:29Z")

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The throttle position sensor should be checked.

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [July 30, 2007, 2:45am UTC](https://community.cartalk.com/t/stalling-an-engine/2331/3 "2007-07-30T02:45:04Z")

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Dirty throttle body or sticking idle air controller.

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [July 30, 2007, 10:49am UTC](https://community.cartalk.com/t/stalling-an-engine/2331/4 "2007-07-30T10:49:46Z")

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Dirty throttle body or sticking idle air controller.

On a diesel?

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**Author:** ![hellokit](https://avatars.discourse-cdn.com/v4/letter/h/6a8cbe/32.png) [@hellokit](https://community.cartalk.com/u/hellokit)\
**Post date:** [July 30, 2007, 10:59am UTC](https://community.cartalk.com/t/stalling-an-engine/2331/5 "2007-07-30T10:59:17Z")

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Most vehicles (gasoline or diesel) have a power increase function in the computer which will add more fuel when the A/C is turned on. Yours may not be working.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [July 30, 2007, 3:32pm UTC](https://community.cartalk.com/t/stalling-an-engine/2331/6 "2007-07-30T15:32:39Z")

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FWIW, diesels don’t have inake throttles or Idle Air Control valves. Fuel flow controls RPM/power.

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [July 30, 2007, 6:17pm UTC](https://community.cartalk.com/t/stalling-an-engine/2331/7 "2007-07-30T18:17:19Z")

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I’m wondering if the AC compressor is binding and loading down the crank too much to idle.

- mountainbike

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**Author:** ![lhoyen](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lhoyen](https://community.cartalk.com/u/lhoyen)\
**Post date:** [July 30, 2007, 6:38pm UTC](https://community.cartalk.com/t/stalling-an-engine/2331/8 "2007-07-30T18:38:19Z")

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Thanks everyone for the input! Linda