Spark Plugs

Discussion in '94-95 5.0 - Specific' started by bmcgc, May 25, 2015.

  1. bmcgc

    bmcgc Member

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    I pulled the left bank plugs today. What a PITA. Im not a skinny kid with skinny arms anymore.

    The plugs I removed are ASF 42C. They may be the originals. Nothing else on this car has been changed.

    The insulators are bright white. Not tan or brown. No oil present. #5 was a little worn on the electrode Gaps were between 052 and 060. I set the new SP25 gap at 052.

    It looks to me like a lean condition. I replaced the air filter, cap and rotor, but have not checked the timing or replaced the fuel filter.

    Compared to a Fox 5.0, the 94 doesn't seem to have near as much power. I have 3.08 gears, but it still seems to be pretty wimpy for a 5.0/5 speed.
     
  2. Twista

    Twista Legend

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    Sn95 is just heavier I think. Might be why it feels slower.
     
  3. toyman

    toyman Active Member

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    Don't forget to clean the MAF element.
     
  4. Addermk2

    Addermk2 Well-Known Member

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    Shouldnt have installed platinum plugs. It's going to negatively affect you going forward. Our ignition systems work best with regular copper plugs.
     
  5. bmcgc

    bmcgc Member

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    Bunches of guys install the platinum's and are happy with them.

    Im not doing any performance mods on this car as long as the misses wants it for her DD.

    I would like some 3.55s or 3.73s but the 3.08s are going to have to do.
     
  6. JKady

    JKady Active Member

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    That's because any new plug is better than crapped up worn ones. Car was engineered for copper plugs, put copper plugs in it.