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'94 350 Rattles like a can of beans...

Discussion in 'The Garage' started by BlazerWheels, Jan 16, 2005.

  1. BlazerWheels

    BlazerWheels 1/2 ton status

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    My dad's '94 Z71 350 (5.7) TBI w/92k original rattles like a can of beans when getting on it. Any ideas on what it would be?? SHould they have it looked at?? :confused:
     
  2. 88sub4x4

    88sub4x4 1/2 ton status

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    Sounds like it is pinging. That is from predetonation. Meaning the fuel air mixture is being ignited before it should, and it is trying to force the piston back down, when it is trying to finish coming up. Check the timing, and the wires to make sure thay are not arcing. Also alot of carbon buildup in the cylinders can cause pinging, but check your timing first.
     
  3. sled_dog

    sled_dog 1 ton status

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    is it throwing any codes? Does it happen when you hit bumps or just when you get on the gas? Could be broken up crap in the cat or muffler if it happens when you hit bumps too.
     

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