dude if you have a 4.3 v 6 you are good for a long time. 4.3 engines have a chain not a belt, so with proper oil changes you got 150 to 200 thousand on a chain
The 2000 Chevy Trail Blazer doesn't have a timing belt.
1996 Chevy blazer timing chain
The 96 Chevy Blazer does not have a timing belt.
The 2003 Chevy Trailer Blazer doesn't have a timing belt.
Your 1999 Chevy blazer doesn't have a timing belt.
It doesn't have a timing belt.
It does not have a timing belt, Chevy did not use timing belts in there truck engines.
How do you set the timing on a 2000 Chevy blazer (V6)
The general time to do so is around 100k (100,000) miles
how much play should a 4.3 Chevy engine timing chain have?
It does not have a timing belt, That engine has a timing chain and gears and they normally last the life of the engine.
When it go's out and the engine quits are when you can no longer set the timing with an engine scanner.