Some Dodge Grand Caravan owners report experiencing issues with their speedometer occasionally quitting, which may be attributed to several underlying reasons. Common causes include a faulty vehicle speed sensor (VSS), damaged wiring, a malfunctioning instrument cluster, or blown fuses. Additionally, some owners have noted that exposed wiring to or from the VSS can lead to speedometer failure, particularly after driving through heavy water. Other potential issues could involve a damaged hairspring on an analog speedometer, loose or damaged wiring, a bad speed sensor, or even a faulty engine control unit. It is advisable for owners experiencing this problem to have their vehicle inspected by a qualified mechanic to accurately diagnose and resolve the issue.
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