The 2005 Honda Civic EX with the 1.7L engine has a timing belt, not a chain. The timing belt for this application will cost about $20-30, depending on brand. The manufacturer's suggested replacement interval is at 110,000 miles or 84 months. If the car is regularly driven in extreme temperatures, the belt should be replaced at 60,000 miles. In any case, it's a good idea to at least inspect the belt and related components (water pump, tensioner) at around 60K miles.
chain.
All Honda 4 cylinders from 2003 and up have a timing chain except the 2004 & 2005 Honda Civic which has a belt. 2006 and up Civic has a chain.
All 2005 Honda Civic use a timing belt that must be replaced every 110,000 miles. Warning: This is an interference engine.
According to Honda's website the standard Civic models did not start using a timing chain until 2006 with the exception of the SI models which were a different engine and have always had a timing chain. But PRIOR to 2006 all the other civic models had timing belts (which have to be replaced to be replaced periodically).
The 2005 Honda Civic has a timing belt that must be changed every 105,000 miles or 10 years whichever comes first. Warning: This is an interference engine.
The 2005 Honda Civic 1.7 L engine uses a cam belt that must be replaced every 110,000 miles. Warning: This is an interference engine.
yes
It has a timing chain.
yes
Yes, it is required.
The 2.4 litre four cylinder engine in a 2005 Honda Accord has a timing CHAIN
Timing BELT.