Engine won’t start or cranks but won’t fire
Engine misfires or runs rough
Ticking or ticking-rattling noise from the engine
Check engine light is on
Loss of power while driving
Engine stalls unexpectedly
Visible cracks, fraying, or glazing on the belt
Missing teeth on the belt
Belt looks dry, brittle, or worn
Oil or coolant contamination on the belt
Belt is loose, slack, or misaligned
Unusual squealing from the front of the engine
Engine timing marks are off
Excessive mileage or age since last replacement
Hard starting in cold weather
Poor acceleration or rough idle