1994 Chevrolet K2500 Logo
Posted on Apr 22, 2009
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Surging and high idle on 94 silverado

My 94 chevy silverado k2500 has high idle issues and also surges while in park. (can go 35mph without stepping on gas pedal)

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  • smithdavon Apr 23, 2009

    the idle is going from 1300 to 1500. I was thinking throttle body gasket for high idle but im not sure

  • smithdavon Apr 23, 2009

    changed out throttle body gasket and no change... any Ideas would be great. p.s. more worried about high idle then slight fluctuating

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  • Posted on Apr 22, 2009
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Joined: Mar 20, 2009
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If your idle is going from 500rpms to 1000rpm's fluctuating at and idle your EGR valve is probably carbon up and needs cleaned or replace.

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