John's 4X4 Center
6367 Arapahoe Rd, Boulder, CO 80303 303.449.2640

Engine and Exhaust

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Simple Answers: Serpentine Belt

Question My service advisor said I need a new serpentine belt, but I don't see any cracks in it.  Does it really need to be replaced? Answer I appreciate your concern.  Old-style neoprene...
Published on: Dec 21, 2025

What Boulder Drivers Need to Know About Their Serpentine Belt

Your serpentine belt drives your alternator and air conditioning compressor. The power steering and power brake pumps are driven by the serpentine belt in many vehicles. In some vehicles, the water pu...
Published on: Dec 07, 2025

Serpentine Belt Replacement at John's 4X4 Center in Boulder

Hello, Boulder ! Today's John's 4X4 Center auto care topic is the serpentine belt. Your serpentine belt is a long belt that's driven by your engine. It winds around several accessories that power impo...
Published on: Apr 26, 2023

Serpentine Belt

You know that long belt that snakes around the front of your engine?  It’s called the serpentine belt.  The belt’s driven by the engine as it turns.  It powers your alternat...
Published on: Mar 07, 2023

John's 4X4 Center Serpentine Belt Service

Your serpentine belt drives your alternator and air conditioning compressor.  The power steering and power brake pumps are driven by the serpentine belt in many vehicles.  In some vehicles, ...
Published on: Oct 14, 2015