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  1. W

    no more check engine light?

    not to long ago my check engine light just stop working i cant get the blink codes to flash and it dose not come on when the key is in the accessory position. the bulb is fine so i checked the service engine lamp wire comeing from the pcm and it only gets vary little voltage when the ignition is...
  2. W

    4.0 engine back fireing

    I have a 4.0 engine that is in a 93 yj ya i no its not a xj but its a 4.0 it has 112,xxx mi on it and the problem is when you punch the gas it seems to hesitate and some times it will back fire through the intake.i have another 4.0 engine so i have swaped over some parts. hears is was i have...
  3. W

    4.0 cam

    i am planning on bilding a high reving 4.0 for mud it will have bigger throtle body header diferent injectors and so on i was wondering if the crane 753941 cam would be a good choice for this engine and if not what would be.
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