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94 Chevy 1500 with 5.7L baugs down when throttle fully pressed

Discussion in 'GM Powertrain' started by runninlope, Jan 9, 2010.

  1. runninlope

    runninlope New Member

    My 94 Chevy idles fine and has no problems running or anything, But when im at a stop and full press the throttle to the floor it cuts the motor out and kills it unless i let off for it co idle again. It raps up fine at half and 3/4 pressed quickly at a stop but quickly pressing it to the floor cuts the motor out. Some one Please help
  2. unplugged

    unplugged Epic Member 5+ Years 1000 Posts

    Throttle Position Sensor (TPS)

    Sounds like a Trottle Position Sensor (TPS) The PCM is not getting a signal that the throttle is in a Wide Open Throttle (WOT) condition. Check the connector/connection.
    [​IMG]
  3. runninlope

    runninlope New Member

    Ok ill try that tomorrow, ill try cleaning the connectors
  4. runninlope

    runninlope New Member

    well i cleaned the connectors and what i could and it didnt help. Could this possible be foul spark plugs? It has been ran more than just idleing for about 5 months because we were changing the body on it.
  5. TritonBoulder47

    TritonBoulder47 Rockstar 4 Years 500 Posts

    Could be a clogged fuel filter...
  6. kjb13

    kjb13 Member

    My '97 with a 350 does the same thing. Hopefully this thread will shed some light on a solution.
  7. runninlope

    runninlope New Member

    I know maybe someone will catch this thread that has fixed the problem. But today i went out and warmed it up at our shop while i was working on our loader and once it warmed up it didnt do it today? Has me fooled, i think i might replace the plugs in it if it keeps doing it
  8. iroc_mitch

    iroc_mitch New Member

    My mom's 98 tahoe did this for awhile and when I got around to looking under the hood i noticed that the intake "tube" had slid out of the box with the air filter and down just a bit so when you nailed it it wasn't getting enough air, but ran great with less throttle. I gotta think since you have been under the hood you would have noticed this but maybe pop the filter off and see if it still does it. It sounds to me like it's running short on air, fuel, or spark.
  9. runninlope

    runninlope New Member

    Im sure its getting enough air because i have a K&N intake and filter on it that i have cleaned within the last month.
  10. iroc_mitch

    iroc_mitch New Member

    Either that or it's a good commercial idea for Airaid intakes

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