What is the proper spark plug gap setting for a 2000 Chevy with 5.3 l vortec?
The recommended spark plug gap for a 2000 Chevy Silverado/Sierra 1500 with the 5.3L Vortec engine is 0.040 inches (1.0 mm). However, always double-check your owner's manual, as slight variations may exist depending on the specific engine configuration and the type of spark plugs used.