no
It has a timing CHAIN
I know of no vehicle where the engine has to be removed to change a timing belt.
You do not have to change the timing chain. It is designed to last the life of the engine.
It does not have a timing belt, That engine has a timing chain and gears and they normally last the life of the engine.
NO, the timing change is designed to last the life of the engine. It is normally changed when the engine is overhauled. Not other maintenance is required.
There is no timing belt in that engine. It has a timing chain.
HOW DO I INSTALL A TIMING BELT ON A 4D56 ENGINE
When it go's out and the engine quits are when you can no longer set the timing with an engine scanner.
The timing chain does not have a recommended change interval and should last for the life of the engine.The timing chain does not have a recommended change interval and should last for the life of the engine.
You do not change the timing chain unless it becomes noisy. It is designed to last the life of the engine.
You need to change the timing chain on a 3.8 Commodore engine when it becomes worn out or it brakes. This is not considered routine maintenance.
You change the timing chain when you overhaul the engine. They will last the life of the engine under normal circumstances and are not an item you replace as a part of regular maintenance.