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TSB Document:

Affected Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Summary
Some 2015-2018 Transit vehicles equipped with a 3.5L or 3.7L engine may exhibit a lack of heat or uneven heat from side to side. This condition may be due to deposits from the engine coolant trapped in the heater core. Follow the Service Procedure steps to correct the condition.

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Date Published
JUN 19, 2018
NHTSA TSB #
10143078
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