Question about 2000 Cadillac DeVille

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Spark plugs 2000 cad dts, where are they? how hard to do?

Where are the spark plugs on this car and are they easily accessible? Are there special tools needed? I have done this on many cars but can't locate them on this one. Took forever to find out where the fuses are! Under the back seat of all places! If I had some direction on how to get to them I am sure I could do it easily enough.


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Spark Plugs are Located UNDER COIL Packs
1. Remove the ignition coil cassettes.
2. Remove the spark plug boots. NOTE: Refer to 3. Clean Spark Plug Recess Notice in Service Precautions.

  1. Remove the spark plugs from the cylinder heads.
  1. Measure and adjust the gap of the spark plugs. Refer to Spark Plug Usage. NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
  2. Install the spark plugs into the cylinder heads. Tighten Tighten the spark plugs to 20 N.m (15 lb ft).
  3. Install the spark plug boots onto the coil cassettes. Ensure that the boots are fully seated against the cassette.
  4. Install the ignition coil cassettes.

Posted on Feb 21, 2009


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