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idling problems

Discussion in 'The Garage' started by chevotass, Nov 18, 2003.

  1. chevotass

    chevotass Newbie

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    Location:
    highland/grand blanc michigan
    i just bought a 87 suburban with 350 and tbi on it. i pulled the motor because it was blown. and put in a 97 vortec 350. with a GM intake so i could run my stock TBI setup. after getting it all done. now when i come to a stop light. it slowly idles down and chugs until it stalls.

    ANY IDEAS?? it also did this when i had the stock motor in it.
     
  2. rick88blaze

    rick88blaze 1/2 ton status

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    if it's an automatic, it sounds like the torque converter isn't unlocking. that's just my opinion, take it or leave it, but most people just leave it. /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
     
  3. 99firehawk

    99firehawk 1/2 ton status

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    What kind of trans?
     
  4. florida4x4

    florida4x4 1/2 ton status

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    Florida
    check the VSS (vehicle speed sensor) then look at the IAB (idle air bleed)
     
  5. CyberSniper

    CyberSniper 1/2 ton status Premium Member

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    Chelsea, MI
    MAP sensor and EGR valve.
     

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