1993 s10pickupOctober 26, 2015how can I tell if my timing chain as broke or if it jump time are if it is something else. Share Tweet Pinterest Keywords:s-10 1 thought on “1993 s10pickup” Freeautomechanic October 27, 2015 at 9:56 am First it might be nice to know what the problem is and what the engine size is? Quick test to see in the timing chain is broken: 1) Remove the distributor cap 2) Crank engine and monitor to see if the rotor rotates or not. No movement would indicate a broken timing chain or camshaft. Movement would indicate timing chain intact. Test to see if the distributor jumped time: 1) use a timing light to check timing components. To check for something else such as check Chevy engine codes Comments are closed.