# 1999 chevy tahoe 357 vortex

**URL:** <https://community.cartalk.com/t/1999-chevy-tahoe-357-vortex/78861>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, 1500\
**Created:** [April 22, 2013, 1:36pm UTC](https://community.cartalk.com/t/1999-chevy-tahoe-357-vortex/78861 "2013-04-22T13:36:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![zlots](https://avatars.discourse-cdn.com/v4/letter/z/a88e57/32.png) [@zlots](https://community.cartalk.com/u/zlots)\
**Post date:** [April 22, 2013, 1:36pm UTC](https://community.cartalk.com/t/1999-chevy-tahoe-357-vortex/78861/1 "2013-04-22T13:36:16Z")

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can i adjust idle on car, seems to be running faster without using gas pedal.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [April 22, 2013, 1:45pm UTC](https://community.cartalk.com/t/1999-chevy-tahoe-357-vortex/78861/2 "2013-04-22T13:45:31Z")

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No. Clean the Idle Air controller motor and see if it clears up. High idle could also be caused by a stuck thermostat keeping the engine from warming up. The ECU will bump up the idle trying to get the engine to warm up. Just another thing to think of.

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**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\
**Post date:** [April 22, 2013, 4:21pm UTC](https://community.cartalk.com/t/1999-chevy-tahoe-357-vortex/78861/3 "2013-04-22T16:21:47Z")

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and it is 350 vortec? you ever had the intake manifold worked on? those motors are known to have leaky intake gaskets. so your coolant level is ok? its a good motor if you can get past the intake issues.