I am having problems with blower motor. The fan is working intermittent.

When I turn the fan on with the speed switch on the dash to the highest speed it will start to blow hard but then will go to a lower speed. I replaced it a month ago but even right after I replaced it sometimes when recirculation is on it still wouldn't blow on the highest speed.

have you checked/changed the blower motor resistor?check for burnt and or melted connector.usually when it starts going out it sometimes does what you are describing.When not replaced, blower will either not function or will not run at all speeds.

Thank you, I will try that.

your welcome.post findings.