The suspension is a primary pillar of the safety triangle, yet it remains misunderstood. It is a dynamic mechanical computer managing energy, weight, and friction in real time. In Michigan, potholes and road salt degrade these precision systems. This guide explores engineering evolution, from traditional geometries to modern mechatronics. We break down the physics of unsprung weight and the diagnostic protocols required to restore your vehicle to its original performance.

If your 2019 Equinox cooling fan runs for 20 minutes after shutdown, you might be chasing a P0128 code. We break down why swapping the temperature sensor is often the wrong move and how a stuck-open thermostat triggers this aggressive GM fail-safe mode.