Re: Best Plugs for a 93 4.0 ?
at the low end? hmmm, not sure how I set them, but I'll look into it. I was aware of the 100,000 mile thing, but wasn't sure if possibly age could affect it, it's just getting very sluggish at lower RPMs, and I figured that's where I'd start. The mileage seems to be holding steady
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93 XLT Supercab 4X4 W/Tow Package (only power stuff it's got are the side mirrors, no cruise control or power windows, locks etc)
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