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December 28, 1997 Service bulletin

Vehicles may experience a thump noise from the heater core that may be accompanied by excessive...

Mazda technical service bulletin 97122800197 for 1994-1997 Mazda B-Series Truck and 1994 Mazda Navajo.

Bulletin number
97122800197
Component
Engine and engine cooling
Summary
Vehicles may experience a thump noise from the heater core that may be accompanied by excessive temperature gauge fluctuation. Yc

Owners of these vehicles have filed 20 complaints in the engine category.

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