# Engine quiting-93 chevy pu

**URL:** <https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, engines, 2500\
**Created:** [August 13, 2009, 6:08am UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994 "2009-08-13T06:08:31Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![alaskaed](https://avatars.discourse-cdn.com/v4/letter/a/eb9ed0/32.png) [@alaskaed](https://community.cartalk.com/u/alaskaed)\
**Post date:** [August 13, 2009, 6:08am UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994/1 "2009-08-13T06:08:31Z")

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I have a 93 chevy pu 5.7-when I let up the throttle to an idle-it faulters and quits.  
  
 If I keep a little throttle on-it won’t happen-lost in bush Alaska

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**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\
**Post date:** [August 13, 2009, 6:38pm UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994/2 "2009-08-13T18:38:46Z")

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Have you cleaned or replaced the Idle Air Control valve and cleaned the air passages to an from the valve? It sounds like it might be a nonresponding IAC or restricted passages.

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**Author:** ![alaskaed](https://avatars.discourse-cdn.com/v4/letter/a/eb9ed0/32.png) [@alaskaed](https://community.cartalk.com/u/alaskaed)\
**Post date:** [August 14, 2009, 2:57am UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994/3 "2009-08-14T02:57:56Z")

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Thanks-I replaced the IAC-still the same-cleaned out the port it threads into-I notice if its in Park idling-it runs fine-if I put it in gear-sitting with the brake on-it faulters and quits ? One injecter is leaking on top-seems to be spraying alright ?  
EGR valve ? thanks -lost in Bush Alaska

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**Author:** ![researcher](https://avatars.discourse-cdn.com/v4/letter/r/edb3f5/32.png) [@researcher](https://community.cartalk.com/u/researcher)\
**Post date:** [August 14, 2009, 4:42pm UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994/4 "2009-08-14T16:42:06Z")

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Is the Check Engine Light ‘on’ or has it been on recently? In any case, have you scanned for codes? At this stage of diagnosis we can use any hints to narrow down the problem.

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**Author:** ![alaskaed](https://avatars.discourse-cdn.com/v4/letter/a/eb9ed0/32.png) [@alaskaed](https://community.cartalk.com/u/alaskaed)\
**Post date:** [August 15, 2009, 2:08am UTC](https://community.cartalk.com/t/engine-quiting-93-chevy-pu/34994/5 "2009-08-15T02:08:02Z")

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No check engine light-  
Started it with the air cleaner off-on injecter nossle is leaking-  
Took the EGR valve off-its working and sealing-  
Pulled the IAC vavle out again-it has alittle carbon on it-sprayed out with carb cleaner-  
Still lost-thanks