2005 Ford Focus ventilation fan goes fast

Car: Ford Focus
Year: 2005
Variant: tdci
Categories: Running Rough, Starting & Power Loss
Hi, when i accelerate the ventilation fan goes faster as if i have turned the control to maximum, then it goes back to normal speed after a few seconds,any ideas how to sort it please
Posted: Jun 23, 2011 (12 years ago)
Could be heater motor ballast resistor on its way out . If not that , could also check alternator not overcharging .
Posted Jun 23, 2011 (12 years ago)

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