The serpentine belt on your 1997-2005 Chevrolet Venture is a long, winding rubber belt that powers several important parts of your engine. It takes power from the engine's crankshaft and uses it to run the alternator, which charges your battery. It also powers the power steering pump, making it easy to turn the steering wheel.. GM 3.4L Engine Belt Routing Diagram Picture and diagram of How to Replace Belt on GM 3.4L 3400 V6 in cars and minivans. This is the routing of the serpentine belt on the GM 3400 V6 engine. It is used in many Buick, Pontiac, Chevrolet and Oldsmobile cars. Question: A friend put on a tension pulley for me. It came off and now the bolt will not.
View and Download Chevrolet 2003 Venture owner's manual online. 2003 Venture automobile pdf manual download.. Serpentine Belt Diagram for 2003 CHEVROLET Venture This CHEVROLET Venture belt diagram is for model year 2003 with V6 3.4 Liter engine and Serpentine; With 105 Amp Alternator