Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Engine Stumbles

Discussion in 'The Garage' started by k5freak44, Mar 18, 2006.

  1. k5freak44

    k5freak44 1/2 ton status

    Joined:
    Jun 1, 2004
    Posts:
    2,164
    Likes Received:
    0
    Location:
    Plano, TX
    Im starting to get frusturated with my K5 because it isint running the way it should.

    Its a 91 with a 350 and TBI, and when its cold it stumbles and tires to die until its somewhat warm. When i go to give it some gas and its in drive it jerks like its dyeing and then slowly accelerates. If i put the pedal to the floor in drive it makes alot of noise and accelerates to 40mph in about 15 seconds. Another thing that it does mostly when its cold but sometimes when its warm, is when i put it in gear thengine stumbles, most of the time dies unless i give it some gas.


    What is yalls take on this?

    I rebuilt the Throttle body and cleaned the injectors, helped but didnt do much, and i replaced the idle regulation sensor or whatever it is called that screws into the back of the throttle body.

    Thanks

    Jonathan
     
  2. AZ79K5Project

    AZ79K5Project 1/2 ton status

    Joined:
    Jan 15, 2006
    Posts:
    2,082
    Likes Received:
    0
    Location:
    Arizona
    Have you checked the timing? Vacuume leak?
     
  3. k5freak44

    k5freak44 1/2 ton status

    Joined:
    Jun 1, 2004
    Posts:
    2,164
    Likes Received:
    0
    Location:
    Plano, TX
    when the engine is warm it idles just fine tho and only bogs down when i try to accelerate.

    would the timing do that?

    i checked for vaccum leaks and couldent find any


    anone else?
     
  4. 1985_K5_Silverado

    1985_K5_Silverado 1/2 ton status

    Joined:
    Dec 21, 2005
    Posts:
    984
    Likes Received:
    0
    Location:
    Corn Country
    Is it tossing out any fault codes? I usually forget to mention that (since mine's a non-OBD-type dinosaur).
     
  5. AZ79K5Project

    AZ79K5Project 1/2 ton status

    Joined:
    Jan 15, 2006
    Posts:
    2,082
    Likes Received:
    0
    Location:
    Arizona
    Timing can cause poor/hesitation on accleration.
     

Share This Page