Two problems related to radiator have been reported for the 2009 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Honda Civic based on all problems reported for the 2009 Civic.
Crack in engine block - driving on highway, came to stoplight and noticed steam coming from engine and overheated. Stopped to look under hood, smelled of coolant. Checked hoses, clamps, radiator. . . . Everything looked fine. Bought a gallon of coolant, poured directly into radiator. It needed the whole gallon. It did not overheat after refilling coolant, but the next day the engine started rattling and running poorly. I could not drive over 50mph. I took to Honda dealer, they said it is crack in engine block, known problem with '06-'09 Hondas but out of warranty, so they will not replace engine.
The contact owns a 2009 Honda Civic. The contact noticed a leak from the radiator. The vehicle was taken to an independent mechanic where it was diagnosed that there was a crack in the engine. The independent mechanic referred the contact to 1st Honda of simi valley (2203 first st, simi valley, CA 93065, 805-433-9526) where it was diagnosed that there was an engine crack and stated that the vehicle was out of warranty. There was no warning indicator illuminated. The manufacturer was made aware of the failure and stated that the vehicle was out of warranty. The vehicle was not repaired. The failure mileage was 144,000.