No, timing chain doesn't need replacing.
A loose timing chain can only be repaired by replacing the timing chain . A loose timing belt means the belt is worn out or the tensioner is worn out. Replace worn parts.
You did not list Make, Model, Year, or Engine Size. So all I can tell you is that the vast majority of vehicles with a timing chain have a self tensioner that keeps the tension tight. If the chain it loose or noisy then it is more than likely worn out or the tensioner needs replacing or both.
The timing chain tensioner bolt sticks out the back left side of the cylinder head. Take the timing chain cover off on the left side of the motor too see the inside to the chain tensioner.
Timing Chain Tensioner for a 92 Nissan maxima is roughly 100$-140$ and water pump around 100$ NAPA Auto parts prices Timing Chain Tensioner for a 92 Nissan maxima is roughly 100$-140$ and water pump around 100$ NAPA Auto parts prices
How to replace a 1985 Chev Suburban's timing chain
A Dodge Durango does not have a timing belt. It has timing chain. If the timing cover chain gasket is leaking it is normal to change it while changing the water pump.
The 2.2 ecotec motor has a timing chain with oil pressure tensioner and chain guides.
The Pontiac Grand Prix has a Timing Chain with a spring loaded tensioner. The tensioner is know to wear, crack and then break. The timing chain and tensioner should be replaced at 100,000 miles. This is a pretty big job that can be done with the motor in the car. $$$ Ray
It means the timing chain needs replacing.
no you do not have to change the timing chain when changing the water pump.
I need diagram on changing the timing chain
u dont adjust the timing chain tensioner if there is slop or play in chain, u need to replace the chain . good idea to replace timing gears at same time while engine is pulled apart