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When to do an engine tune up? 850

My '95 854 Turbo has 39k miles, and I'm wondering when it needs new spark plugs, ignition wires, and cap and rotor?

Thanks!
--
'95 Volvo 854 Turbo: Gold Edition
K&N air filter, leather, 6 disc CD-changer, rear spoiler








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    When to do an engine tune up? 850

    Change the plugs and the oil only not wire and cap they do last longer...

    you change wire and cap when your car not ideling correctly...


    safe the money.... flush the transmission fluid every 30,000 miles...








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      When to do an engine tune up? 850

      Thanks for the advice guys. Just seems that the car doesn't have the power that it did when it was new. I'm guessing the plugs may need to be changed, being it has 39k of city driven miles. Will my dealer be able to put those high performance spark plugs, or will they just put OEM ones? How much will this cost me? I've replaced the spark plugs in my Dodge Ram when I owned it, but I don't think I want to mess with the Volvos engine.

      BTW, also when I go to the dealer I'm going to switch to synthetic oil, get a stainless steel exhaust tip, get the rubber ball fixed in the rear suspension, and of course, get new spark plugs put in! :)

      Thanks!


      --
      '95 Volvo 854 Turbo: Gold Edition
      K&N air filter, leather, 6 disc CD-changer, rear spoiler








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    When to do an engine tune up? 850 na 850 1995

    the wires, cap and rotor will go well over 100k. I changed mine at ~100K, and did not see any difference. later volvo teck told me they do not change wires, cap and rotor until it stars having problems.
    spark plugs: the volvo manual says 30K.
    I just checked my plugs today (~20K) and they looked good (bosch 4+s)
    If you feel loss of power change plugs only (oe volvo 3 elecrtode or bosch 4+)







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