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stumbling...stalling...

Discussion in 'The Garage' started by shaun89, Aug 7, 2005.

  1. shaun89

    shaun89 1/2 ton status

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    hey im new to this site...so uhh hi to everyone...i got a problem, my truck is hard to start, once its running it seems fine in park, i can go from idol to floored as fast as i want with no bog or hesitation, but once its in drive, it bogs down and studders, i can keep a consistant rpm above idol without it spitting, studdering and stalling, but as soon as its back in park, runs like a dream...any suggestions? thanks
     
  2. gmcjimmy90

    gmcjimmy90 Registered Member

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    what kind of vehicle, what year and what is the engine rpm's in park
     
  3. shaun89

    shaun89 1/2 ton status

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    its a 89 silverado k5 and it has no tac. so im guessing the rpms are around 600, it sounds perfect, just like any other k5....thats whats bugging me :doah:
     
  4. sandawgk5

    sandawgk5 3/4 ton status

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    600 is to low in park should be about 800-1000 in park and 500 in drive according to the book.
     
  5. Thunder

    Thunder 3/4 ton status

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    Tune up ?? new plugs, wires, cap and rotor,?
    Is it throwing any trouble codes?
    If you dont know how to check codes heres how:http://www.troublecodes.net/GM/
    Your DLC is under the dash by steering collum.
     
  6. LongIslander26

    LongIslander26 1/2 ton status

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    Bad Idle

    Assuming it's carbureted, do you have the vaccuum advance connected to manifold or ported vaccuum cource? Check you base timing with the vaccuum advance disconnected and see. Also the mecahanical advance weights in you distributor could be stuck as well.
     
  7. shaun89

    shaun89 1/2 ton status

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    ok cool....thanks everyone for the help, ill try some of that, again thanks :bow:
     

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