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  1. C

    4.3 Bucking

    I figured it out. I was my egr valve. I unplugged it and my engine hasn't had an issue since.
  2. C

    4.3 Bucking

    My obd1 connection does not work. Im going to have to rewire it.
  3. C

    4.3 Bucking

    I've replaced all the fuel system and I've cleaned the TBI but I still am bucking at any constant speed after going for like 5 min. Does anyone know what is going on? Any help would be appreciated.
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