That engine has a timing chain and gears and will probley out last the engine. NO need to replace it.
chain
at what mileage do you change a 99 Chevy Tahoe timing chain.
The 2003 Chevy Tahoe (both the 4.8 and 5.3L engines) have a timing chain, not a belt.
It has a timing chain and gears. NO timing belt.
It has a timing chain.
It has a timing chain and gears. NO BELT.
It has timing chain and gears. NO belt.
don't replace it unless it breaks
That year and engine size does not have a timing belt. It has a chain and gears
never needs to be replaced
First of all, It has a timing chain not a timing belt. No need to change the timing chain and gears. They will last the life of the engine.
When it goes out. But it will probley out last the truck itself.