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Engine stumbles!

Discussion in '1992-Present Chevy & GMC models' started by OLDSTEEL, Jun 1, 2003.

  1. OLDSTEEL

    OLDSTEEL 1/2 ton status

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    Location:
    SANDIEGO CA
    I'm helping a friend with his 93 Blazer and the thing has me stumped. The engine acts like it is going to die at about 5-10 MPH, if you step on or let of the gas it will clear-up. I have done a complete vacume check, cleaned the throtle body, have no codes present, replaced the throtle position sensor. If anyone has any advise please provide it. /forums/images/graemlins/1zhelp.gif
     
  2. heavy4x4

    heavy4x4 1/2 ton status

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    Location:
    Delafield, Wisconsin
    Mine does this every once in a while when it's warming up, but only once, and it's always the same turn in my neighborhood. I'm not too worried about it because it only happens then.

    Try the normal fixes like fuel filter, O2 sensor, maybe a new EGR. Does it only happen when off the throttle at those speeds, or does it do this at other times too?

    Is this a full-size blazer or one of the s-series blazers? If it's a fullsize, I'd post this question in the "Garage" - it'll get a lot more views and responses, and even though it's a '93, it has the same engine as the '87-91 K5's and suburbans. /forums/images/graemlins/thumb.gif
     
  3. 89K1500Chevy

    89K1500Chevy 1/2 ton status

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    Location:
    Georgia, Fayetteville
    Yeap mine does it too warming up in cold weather but its summer time here so i dont got to worry about that right now. I have replaced almost everything but the ecm and it still did it so idk what the h3ll is up with it. /forums/images/graemlins/truck.gif /forums/images/graemlins/usaflag.gif www.zombieoffroading.8m.net
     

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