Question about 2002 Chevrolet TrailBlazer

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How to change sparkplugs. What steps are involved?

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This ignition system utillizes COP (coil on plug) ignition, therefore there are no traditional plug wires. Insted there is an ignition coil mounted on each cam cover/ or head, they have to be unpluged and removed in order to access each plug. You will also need an extension on the 5/8" socket to get down in there. The Labor guide estimates approx 1.6 hours to do the replacement if you've never done it before and 0.5 if you have experience on it.

Posted on Sep 15, 2010


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How to change spark plug on 02 mazda tribute

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What exactly is involved in a tune-up for a 2001 Dodge Grand Caravan

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1 Answer

Can i change my sparkplugs myself?

You will need a spark plug wrench amongst other things, but it should be fairly cheap. It may be worth seeing how cheap it is at the auto shop, since it shouldn't take long. It may cost about the same as the instruments needed.

Here is a step by step guide if you want to do it yourself.

Hope this answered your question. Please rate accordingly.


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Remove independent coil from each spark hole,and then remove sparkplugs with a socket with extention.

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