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I want to speed up my idel on my 5.7

Discussion in 'Chevy Trucks' started by cameo89, Dec 28, 2009.

  1. cameo89

    cameo89 Senior Member
    Messages: 669

    I got a 98 chevy 1500 5.7 and @ night with heat,lights ect. my idel is about 500rpms and I wanna raise my idel to 700rpms or so to keep my volt gage up there, how hard/easy is it to do this? Thanks
  2. Q101ATFD

    Q101ATFD Senior Member
    Messages: 277

    700 RPM won't get many more amps from the alternator... Look for something that gets you to at least 1,000 to 1,200 RPM.
  3. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Upgrade to a bigger alternator that puts out good amps at idle
  4. cameo89

    cameo89 Senior Member
    Messages: 669

    No snow means No money flow. so I want something that will be a cheap fix till winter gets here! lol I want to upgrade to the 145amp alt. that will help Im sure, but can I idel it up with a screw?
  5. Milwaukee

    Milwaukee 2000 Club Member
    Messages: 2,180

    Don't it hurt transmission with high idle it like shift hard when you put in D/R gear

    I rather keep 500 rpm to avoid destroy transmission VS alternator that cost $145 to upgrade.

    Or you could change pulley to smaller that will work.
  6. Q101ATFD

    Q101ATFD Senior Member
    Messages: 277

    Find a brick?
  7. cameo89

    cameo89 Senior Member
    Messages: 669

    a brick? wtf? Im lookin for an idel screw, kinda like on the old Q-Junks, mine is a tbi I beleive?
  8. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    There's no idle adjustment provisions on the Vortec engines. Yes they idle a little low and they're designed to. Sounds like you're ready for some charging system upgrades. Or lighten the load.
  9. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588