If you haven't started yet, then change one plug at a time and take the plug wire off and measure side by side the new wires and pick out nearest match.
If you have already started and pulled all plugs and or wires off you will need a firing order for that vehicle and will have to kinda guess the correct lengths for each wire.
Look up your firing order at the following address.
Autorepair. About. Com/od/enginefiringorders1/Engine_Firing_Orders. Htm
Friday, February 27th, 2009 AT 12:29 PM