Yes.
The 4.3 litre V6 engine in a 2003 Chevrolet Blazer has a timing CHAIN
It has timing chain and gears. NO belt.
The 4.3 liter V6 engine in a 1997 Chevy Blazer has a timing CHAIN
Behind the timing chain cover on the front of the engine.
The life expectancy of a timing chain on a 1999 454 Vortec engine is 5 to 10 years. The exact time depends on how often the vehicle is driven.
NO
When it go's out and the engine quits are when you can no longer set the timing with an engine scanner.
It does not have a timing belt, That engine has a timing chain and gears and they normally last the life of the engine.
The 4.3 litre V6 engine in a 2000 Chevrolet Blazer has a timing CHAIN
1996 Chevy blazer timing chain
how much play should a 4.3 Chevy engine timing chain have?
To set the timing gears on a 1997 Chevy Blazer 4.3L V6 Vortec, first ensure the engine is at top dead center (TDC) on the compression stroke for cylinder number one. Align the timing mark on the crankshaft gear with the mark on the timing cover. Next, position the camshaft gear so that its timing mark aligns with the mark on the camshaft. Finally, double-check the alignment before reassembling and tensioning the timing chain or belt.