Chain
No belt. It has chain and gears.
The 4.3 litre V6 engine in a 2003 Chevrolet Blazer has a timing CHAIN
All engines in this vehicle have a timing chain.
It's a t-chain.
No , the 3.4 and 3.8 litre V6 engines in a 2003 Chevrolet Impala have a timing CHAIN
A 2003 Impala does not have a timing belt. It has a chain.
NO, it uses a Chain. No belt.
The 2003 Chevrolet Tracker 2.0 liter 4 cylinder must have a timing CHAIN The Gates website does not list a timing belt for it
On a 2003 Chevrolet Trailblazer ( yes ) Both the 4.2 litre six cylinder engine and the 5.3 litre V8 engine have a timing CHAIN
The 2003 Chevrolet Silverado-1500 has 12 valves.
The 2003 Chevrolet Silverado-2500HD has 16 valves.
The 2003 Chevrolet Silverado-1500 has a V6 engine.