One problem related to timing tensioner has been reported for the 2008 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Honda Civic based on all problems reported for the 2008 Civic.
Noise from engine when stationary or parked. In 2010, serpentine belt tensioner and pivot bolt replaced noise went away but dealer did not know how long would last. Now, same noise is returning which can only be tensioner and pivot bolt again. Very distinct noise for this problem.