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How do I know when Wires are bad? 850

posted by  someone claiming to be Sandro P. Seminara on  Mon May 5 04:14 CST 2003 [RELATED]

How do I know if my Spark Plug wires are bad? Will I notice a performnace decrease? They have about 40-50k on them. I replaced the Dist Cap, Rotor, and Plugs about 10k ago, but not the plugs.

Thanx
Sandro Seminara








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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    A technician with the right equipment can test the spark plug wires.

    In my experience, unless you are unlucky, they should be looked at hard when you get your 90,000 mile service. I keep the longest old wire in the car as a spare.

    If you are handy, you can wash them in soap and water. Someone mentioned a chap who puts them in the dishwasher! I have cleaned 740 wires with WD 40 and a rag.

    Clean the distributor cap inside and out as well.
    --
    3 8s & 2 7s 740,000 miles total



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    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    The general concensus is that the plug wires are good for 100,000 miles or more. Unless you have some visible signs of damage/arcing, wait until later to replace. Plugs are good for 30k, per Volvo recommendation, and cap & rotor are probably good for at least 60k, maybe even 100k. In general, Volvo ignition parts are pretty long-lasting.

    Gerald C



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      posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

      dont waist your money, I changed out my wires and cap
      and notice no change in perfomace of milage, my car had
      95k on it.



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