When should the timing belt be changed on a 97 4.3 liter vortec engine?
The recommended replacement interval for the timing belt on a 1997 4.3L Vortec engine is every 100,000 miles or 10 years, whichever comes first. However, it's crucial to consult your owner's manual. GM's recommendations can vary slightly by model year and specific engine configuration. Ignoring this maintenance can lead to catastrophic engine damage.