volvo Workshop Repair Guides

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Ignition Cable: Testing and Inspection

1.

Inspect spark plug wires for signs of arcing or burning.

2.

Check resistance of wires using an ohmmeter. Resistance should be:

Cylinder # 1 ...................................................................................................................................................................................  4.5K ohms ± 20%
Cylinder # 2 ...................................................................................................................................................................................  4.0K ohms ± 20%
Cylinder # 3 ...................................................................................................................................................................................  3.3K ohms ± 20%
Cylinder # 4 ...................................................................................................................................................................................  2.9K ohms ± 20%
Cylinder # 5 ...................................................................................................................................................................................  2.3K ohms ± 20%

3.

If resistance is not within specifications, replace spark plug wire set.

Powertrain Management > Tune-up and Engine Performance Checks > Ignition Cable > Component Information > Specifications > Page 3069

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