I have a 97 2.3 that has heat but the blower doesn't come on. I've recently replaced the blower fuse, blower resistor, blower resistor connector, and blower relay. The blower motor works with 12v run directly to it and like I said the heat does come on but it just trickles out of the vent. I also know that the belt tensioner is damaged but it holds the belt on tight enough to drive and recharge the battery.
Could the damaged tensioner have this type of effect on the blower? I'm wondering if it is possible that it isn't getting enough power to the alternator which therefore isn't getting enough power to the blower?