GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3
  1. #1

    Default 5.7 engine reving when foot off the gas pedal

    I haven't got anyone to respond to my original post so I thought I'd post in a different area. My son's 94 ext cab has been acting up lately. When he prepares to slow down and takes his foot completely off the gas pedal, the engine is giving a series of revs before returning to normal idle. (in gear) The tach is recognizing these revs as well.
    I changed the fuel filter a couple days ago, and my son said that it actually runs a little better, but is still acting up.
    Any input on what it might be or definetley is?

  2. #2

    Default

    idle air control valve my sons did the same thing on his 1991 they are 25 to abou 50 dollars easy to do if you have a auto zone ner you look it on ther web site it will tell you how to change it

  3. #3
    Legend

    Join Date
    Feb 2008
    Location
    Red Wing, Minnesota, United States
    Posts
    3,356

    Default

    before you go and drop the money on the IAC just take the old one out and clean it. You can take them apart and clean them very easy, if it helps then that could give the evidence theat it is the IAC, if not then let us know. My thought is always dont spend the money on a guess if you dont have to.
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
    ___________________________
    Jason

Similar Threads

  1. 2006 silverado 5.3L hissing noise when reving
    By Jimbo3 in forum General Chevy & GM Tech Questions
    Replies: 14
    Last Post: 02-02-2011, 09:07 PM
  2. Replies: 4
    Last Post: 02-04-2010, 07:23 PM
  3. Engine Missing/Brake pedal soft
    By lonewolf9861 in forum Member Introductions
    Replies: 0
    Last Post: 12-28-2009, 02:17 AM
  4. Engine Stalls and Only Will Restart With Pedal To The Floor
    By coffmaad in forum General Chevy & GM Tech Questions
    Replies: 0
    Last Post: 09-30-2009, 10:12 PM
  5. 01 chevy venture reving question
    By bigpiper223 in forum General Chevy & GM Tech Questions
    Replies: 0
    Last Post: 07-04-2009, 10:37 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •