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Low Idle Problem

Discussion in 'Technical Questions?' started by junior3815, Dec 24, 2011.

  1. junior3815

    junior3815 Get 'em, Got 'em, Good

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    My truck when I start it at a cold start starts and maintains 800rpm. Most trucks will revv and idle at like 1200 rpm for thirty seconds. also when going up a hill if i dont give it enough gas it acts like it wants to knock off. Always had this problem, has a brand new fuel pump and fresh fuel filter. Any ideas:dunno:
     
  2. DV2000NJ

    DV2000NJ The Browmaster

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    Any codes?
     
  3. Cowboy Cadillac

    Cowboy Cadillac Ain't no trash in my trailer!

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    Fuel pressure regulator or a dirty intake. I know I had a dirty intake around the butterfly holding it open slightly allowing too much air in causing a low idle/bog. Fuel pressure regulators are common replacement items on gmt 800s, so I've been told. Check to see if its wet inside hose to regulator( its on DRv side fuel rail IIRC.)
     
  4. junior3815

    junior3815 Get 'em, Got 'em, Good

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    No codes being thrown, ill have to check the regulator
     
  5. OldCracker29

    OldCracker29 I've been knocked down drug out and left for dead

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    This is where I'd start.
     
  6. skeet

    skeet EvlRed 10 Sec Club

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    this a completely stock truck? if so like mentioned id check for leaks around the intake, lean throttle body, clean MAF
     
  7. ScottyBoy

    ScottyBoy No, that's not a banana in my pants.

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    My truck has idled at about 800 or so RPM's since I bought it in 2006. However, it will increase slightly if the AC is on. :dunno:
     
  8. OldCracker29

    OldCracker29 I've been knocked down drug out and left for dead

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    :lurk: Did you get it figured out yet?
     
  9. junior3815

    junior3815 Get 'em, Got 'em, Good

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    Not yet work has been so consuming lately
     

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