It’s time to sit back and relax, it was only 7 degree this morning (NYC), it'll get even coldertomorrow, this is not the time to fix your Volvo unless you have a heated garage, I read many post the past few days (week), most of them referred to hard starting or not start at all, dear fellow tricksters, do your maintenances in the warmer months, it’s to cold out side and I don’t want to see you get sick frost bite etc, regular maintenance is important
I own a 89 240 since it was new, 11k miles, I always use premium gas ( Amoco), a bottle of techron before every oil change ( 3-4 k miles), change filter, spark plugs regularly, my 240 always start even in coldest winter, please leave the car alone in these frigid weather.