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Stumbling 1987 K5

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ds350, Jan 26, 2001.

  1. ds350

    ds350 1/2 ton status

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    My Blazer has started to stumble when on the road. It feels like it could be a electical or fuel problem. I have replaced the sparkplugs, dist & cap, filter, etc within the last 5k miles. I was actually thinking it could be the fuel filter, or the fuel pressure regulator. Any advice would be greatly appreciated.

    Thanks! Danny
     
  2. coopertwpk

    coopertwpk 1/2 ton status

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    Its most likely your wires ,thats ussually my problem .

    88k5 silverado w4"lift soon to have <font color=orange>d44 and corp14ff</font color=orange> with 4.56s
     
  3. wi86blazer

    wi86blazer Registered Member

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    Replace the fuel filter if you haven't done that yet. If it starts harder than normal, stumbles while accelerating, but otherwise runs well - it's the fuel filter. My 89 K5 was running like that, changed the fuel filter and that solved everything.
     
  4. ds350

    ds350 1/2 ton status

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    I ended up changing both, and that fixed the problem.

    Thanks for the help!
     

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