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  1. I4/I5 Engine & Drivetrain
    I'm looking to do a tune up. I need plugs and coil pack. Could anyone recommend a specific coil pack? Going to use the denso iridium plugs. But I didn't want to get separate coils. I prefer a whole coil pack if possible 08 Colorado 2.9L I4
  2. I4/I5 Engine & Drivetrain
    My 2004 colorado 5 cyl needs new plugs and with 175K and the codes I got on a long trip, also know the coils need to be replaced as well. While I'm at it, will replace the value cover too as I'm getting some leakage into the coil/plug wells. Gasket set is no biggie. However there are various...
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