A functioning, intact and unclogged heater core is bottom line for the heat in your Fiero to business.
Lack of coolant in the engine not only leads to the engine overheating, but it reduces the flow of antifreeze to the heater core limiting its ability to heat the cab of the vehicle.
Leaking Heater Core Test
Remove the speaker in the sprint inside the Fiero on the passenger side using a screwdriver. Remove the heater core include persist the speaker and visually study the radiator for cracks and leaks.
Flowing Heater Core Test
Ajar the radiator cap when the engine is biting and peep the flat of antifreeze in the cooling development.The heater core in your Pontiac Fiero is a miniature radiator located inside the vehicle near the passenger seat. The radiator takes in fevered antifreeze from the engine and radiates heat to the interior of your vehicle.