Usually by visual inspection. Look for worn cogs and fraying of the belt.
The best way is to replace it on a regular basis, IE every 100,000 miles. If it breaks while the engine is running it can produce severe engine damage and bent valves.
In most instances you absolutely cannot tell by looking if a cam belt needs replacing. It may look good and be ready to break. That is why you replace it at a set mileage.
how can you tell if a timing belt is bad
No start, internal engine damage.
It uses a timing chain
You cannot tell that is why you just replace them at a set mileage as recommended by the manufacture of the vehicle.
These have a timing belt . They stretch out and yours is old . If you can not time it or it is mis firing for no other reason , then it is most likely bad .
Yes a timing belt can make it run bad the vale timing gould be off an the cam will be in re tard timing
If I recall correctly. When a timing belt goes bad it just go...
NO! This has no effect on the timing belt.
Timing belt or chain may be bad.
No.
Your 94 S-10 doesn't have a timing belt.
Bad missfire and if ur car is hard to start then its a stretched timing belt.