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Spark Plug Wires - When to replace them.
How can you tell when spark plug wires need to be replaced? I have an 1985 Targa with what appears to be OEM wires. While the sheath insulation is not damaged or cracked some of the rubber outer covers on top of the fan housing are cracked, missing or broken. I just replaced the rotor and cap with OEM. My mechanic said the wires are fine since they do not appear to be arching, however, I could replace them for cosmetic reasons.
What should I look for to tell me it is time to replace them, other than for appearances. Also, what wires are recommended. The OEM are always preferred I know, but can they are pricey vs. the alternatives. I do not want to skimp on cheap ones, wondering if other wires besides from OEM are recommended that perform as well, or better.
Thanks.
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