79 Volvo 240, the temperature gauge goes into the red lately after about 10 minutes of driving, (the radiator is full). I was checking out the fan to the radiator and it turned in both directions with little resistance, it that normal? When the car is running the fan appears to be blowing quite hard. could it possibly be that the sender is shot?
The Volvo’s radiator doesn’t have a cap, it’s a sealed type, with only a reservoir.
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