Car Problem Reports

GMC Envoy Heater Core Under Right Side of Dashboard May Leak Engine Coolant

GMC Envoy Problem
5 Reports
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Model Years Affected: 1998, 1999, 2000, 2006


The heater core under the right side of the dashboard may leak engine coolant which can puddle on the passenger front floor. The loss of coolant may cause an engine overheating condition. Our technicians tell us that removal of the dash board is necessary to replace the heater on these vehicles.

  • Visitor,

    Engine Overheating, found leakage of coolant below reservior tank, mechanic removed heating pipes, still problem persists

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