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What would cause a headache when exhaust fumes enter the cabin when the heater is turned on a 1996 Buick Regal how can this be fixed?
Wiki User
∙ 18y ago
Carbon monoxide is an odorless gas. It would be my guess that the fumes are entering all the time with the fan helping to circulate. My guess is that the catalytic converter is clogged. The indication of this is poor power, terrible fuel economy, and if you look under the car at night, a glowing red converter. VBD I don't know how to fix it but get it fixed because it sounds as though you are getting carbon monoxide poisoning which can kill.
Wiki User
∙ 18y ago
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