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Replace 1 or 4 Ignition coils
35K miles ago I replaced all four ignition coils on my 2002 Altima 2.5S. One of the coils just went bad.
Should I replace all four coils again or can I replace just the one bad one?
The original coils lasted 90K miles. The news one had a failure after 35K miles. Could the be something causing this shorter life, such as a bad ground cable from the battery to the chassis?
Last edited by swieder; 12-01-2011 at 02:45 AM.