# Problem with Idle in Truck

**URL:** <https://forums.speedlife.net/t/problem-with-idle-in-truck/173174>\
**Category:** PittSpeed Automotive\
**Created:** [March 23, 2005, 7:00pm UTC](https://forums.speedlife.net/t/problem-with-idle-in-truck/173174 "2005-03-23T19:00:15Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![Sight\_N\_Sound](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sight_n_sound/32/5950_2.png) [@Sight\_N\_Sound](https://forums.speedlife.net/u/Sight_N_Sound)\
**Post date:** [March 24, 2005, 9:32am UTC](https://forums.speedlife.net/t/problem-with-idle-in-truck/173174/21 "2005-03-24T09:32:42Z")

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No the check engine light isn’t on. Yes its acting the same exact way.

-Start the truck up in the morning its cold and higher Idle than normal  
-Drive down the parkway get to the garage while stopped it does a high / low idle fluxuation…

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**Author:** ![Pewter](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pewter/32/5936_2.png) [@Pewter](https://forums.speedlife.net/u/Pewter)\
**Post date:** [March 24, 2005, 9:53am UTC](https://forums.speedlife.net/t/problem-with-idle-in-truck/173174/22 "2005-03-24T09:53:42Z")

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> [@PewterSS](#):
>
> check engine light on? is it the same doc as yesturday?

same doctor telling u how to fix it!@

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**Author:** ![Sight\_N\_Sound](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sight_n_sound/32/5950_2.png) [@Sight\_N\_Sound](https://forums.speedlife.net/u/Sight_N_Sound)\
**Post date:** [March 24, 2005, 10:00am UTC](https://forums.speedlife.net/t/problem-with-idle-in-truck/173174/23 "2005-03-24T10:00:17Z")

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> [@PewterSS](#):
>
> same doctor telling u how to fix it!@

no the guy I’m talking to next to me is a certified mechanic. He is my buddy from the fire department and I work with him.

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**Author:** ![red04cavy](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@red04cavy](https://forums.speedlife.net/u/red04cavy)\
**Post date:** [March 24, 2005, 2:13pm UTC](https://forums.speedlife.net/t/problem-with-idle-in-truck/173174/24 "2005-03-24T14:13:46Z")

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definitely sounds like a vacuum leak to me also. My old Cavalier had the same problem ( i know, completely different), but I was told at the time, that when a vehicle starts idling funny like that, it is a vacuum leak. Try taking a piece of hose, holding one end up to your ear, and use the other end to probe around till you hear where it is coming from.

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