What size of wrench do you need to remove the plug in oil pan change on a 5.3 LT 2002 GMC Sierra pickup?
The oil drain plug on a 2002 GMC Sierra 5.3L Vortec engine typically uses a 15mm wrench. However, it's always a good idea to double-check with your owner's manual or a reliable online repair database specific to your vehicle's year and model before starting the oil change. Sometimes there can be variations.