water pump,timing chain and tentioner replaced on 2004 Dodge Stratus

my car ran smooth , took it to mechanic for routine maintenance. was told water pump is starting to leak. water pump,timing chain and tentioner was my car makes a rattling noise. mechanic said its the tentioner and the noise will go away in a few days. is this true.noise is still present

Asked by for the 2004 Dodge Stratus
No, the noise won't go away if a few days. There is a special way to load (pump up)
the hyd. tensioner on these engines, if it wasn't done right it won't pump up. This leaves a ratteling noise were the chain guide slaps against the tensioner. He will need to go back inside the engine and load the tensioner to repair.
thank you kindly for your response, i've been driving the car for a few days but long distance can this cause any further damage?