If you own a Honda S2000, a 2003 or newer Honda Accord with a 4-cylinder engine, a 2006 or newer Honda Civic, A 2002 or newer Honda CRV, a Honda Element, a Honda Fit, an Acura RSX, and Acura TSX or a 2007 thru 2012 Acura RDX; then you have an engine that incorporates a timing chain instead of a timing belt. Under normal driving and good car maintenance, the timing chain rarely gives much trouble. However, they can stretch, start making noise and eventually jump time. If this happens, the results can be catastrophic to the engine. Prevention is the best cure and we have found that fewer Honda and Acura car owners have issues with their timing chains if they regularly change the engine oil in their vehicle. If you start your Honda or Acura on a cold morning and it rattles at idle - then bring it in and don't wait - you may even want us to tow it - yes, it's that serious. The more you drive it, the more likely the chain will jump time and at best leave you stranded and at worse can bend or break valves, requiring (at minimum) the cylinder head removal from the engine or complete engine replacement. see photos below - severe damage required engine replacement.
The collision of the open valves to the pistons was so violent when the chain jumped time; it actually broke valves in all 4 cylinders of this Honda Accord engine
A result of a timing chain jumping time - it was cheaper to replace the engine that to fix this one