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View Full Version : Crossed Spark Plug Wires on a Mercury Grand Marquis


alexis198722
Feb 10, 2009, 10:03 AM
How do I fix crossed spark plug wires on a 1989 grand marquis.

this8384
Feb 10, 2009, 10:12 AM
By "crossed" do you mean they were installed improperly? If so, find the correct firing order, remove the wires and reinstall them correctly.

ballengerb1
Feb 10, 2009, 11:28 AM
Your firing order should be 1-5-4-2-6-3-7-8. What do you currently have and any idea who/how the wires got changed?