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Thread: S10 wont start
          
   
   

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  1. #1
    muteboy49's Avatar
    muteboy49 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 86 Mark VII
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    S10 wont start

     



    ok my and my boss have been tryin to fix his S10 he bought a lil while ago.
    hes replaced the fuel pump, the sending unit, all the relays to it, and today bought and installed a new ECM. and when he turns the key to the on position all the light on the dash come on but the service engine soon light. and the light not coming on is the problem its not telling the fuel pump to pump he found some way to bypass the problem and it starts fine.
    does anyone have any idea what the problem is? i think hes going insane
    thanks guys
    steve
    Never Criticise A Man Until You've Walked A Mile In His Shoes. That Way When You Criticise Him You'll Be A Mile Away And You'll Have His Shoes

  2. #2
    lt1s10's Avatar
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    Car Year, Make, Model: 1997 CHEVY.S10 LT1-350
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    what yr, and motor?
    Mike
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  3. #3
    muteboy49's Avatar
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    oh DUH its a 94 4.3 TBI
    Never Criticise A Man Until You've Walked A Mile In His Shoes. That Way When You Criticise Him You'll Be A Mile Away And You'll Have His Shoes

  4. #4
    lt1s10's Avatar
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    Car Year, Make, Model: 1997 CHEVY.S10 LT1-350
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    Quote Originally Posted by muteboy49
    oh DUH its a 94 4.3 TBI
    not much left but a bad connection some where. don't have one for 94 but here is a 97 drawing of the fuel relay. i'd check these wires and see if they are doing what they are suppose to.
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    Mike
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  5. #5
    muteboy49's Avatar
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    thanks man!!
    Never Criticise A Man Until You've Walked A Mile In His Shoes. That Way When You Criticise Him You'll Be A Mile Away And You'll Have His Shoes

  6. #6
    lt1s10's Avatar
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    be sure you have 12 volts on "E" all the time, be sure "B" is ground when trying to start, and see if you have 12 VOLTS on "A" when starting, "C" should be 12 volts with key on start. your relay should be the same.
    Mike
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  7. #7
    muteboy49's Avatar
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    got it. thanks alot!
    Never Criticise A Man Until You've Walked A Mile In His Shoes. That Way When You Criticise Him You'll Be A Mile Away And You'll Have His Shoes

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