Been through 2 new reman 4.3 vortec v6 engines, transmission overheated badly inevitably needing a rebuild, and still overheated, so had to install a class a RV trans cooler just to keep temps down.

Standard equipped with four-wheel drive the 1998 GMC Envoy was powered by a 4.3-liter Vortec V-6 engine connected to a four-speed automatic transmission. Lavishly equipped, the 1998 Envoy included ...

Available with rear-wheel or four-wheel drivetrains, the GMC Sierra 1500 Classic came featured a choice of three Vortec engines. The base powerplant offered on the 2007 Sierra 1500 Classic was a ...