K Yukon/Denali 4WD V8-5.7L VIN R (2000)
Ignition Cable: Service and Repair
SPARK PLUG WIRE HARNESS REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the spark plug wire at each spark plug.
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Twist the boots one-half turn before removing.
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Pull only on the boot or use a tool designed for this purpose in order to remove the wire from each spark plug.
2. Disconnect the spark plug wire from the Distributor.
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Twist each spark plug boot 1/2 turn.
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Pull only on the boot or use a tool designed for this purpose in order to remove the wires from the Distributor.
INSTALLATION PROCEDURE
1. Install the spark plug wires at the Distributor.
2. Install the spark plug wire to each spark plug.
NOTE: Refer to Spark Plug Boot Notice in Service Precautions.
3. Inspect the wires for proper installation:
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Push sideways on each boot in order to inspect the seating.
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Reinstall any loose boot.
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Wire routings must be kept intact during service and followed exactly when wires have been disconnected or when replacement of the wires is
necessary. Failure to route the wires properly can lead to radio ignition noise and crossfiring of the plugs, or shorting of the leads to the
ground.
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Any time the spark plug wires or boots are installed on the spark plugs, new dielectric grease needs to be applied inside the boot.
