Hi all, I've got a question: My heat works, but intermittently. Also, the strength of the blower seems to go up and down, mostly when I accelerate and let off the gas. Right now, if I turned off the heater for a minute or two, the heat will come back on, but the blower fluctuates on power. I feel that I may have two problems: heater core and blower, or maybe it is just the alternator? Any help would be great!, Thanks.