NOTE: I actually don't own a Grand Prix - a friend of mine who doesn't use a computer has one and asked me to post a message for them to help them troubleshoot a problem they're having. So any replies might take longer than usual since I only see them a couple of times a week.
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I'm trying to get my 2004 Pontiac Grand Prix to throw out hot air, but it's just barely throwing out heat. I've put a thermostat in it. I've also put a new switch on it that controls the hot and cold air. On top of that, I checked the hot water hose that goes into the heater coil (so it's circulating). There's no visible leak on the hose. But still no hot air.
If anyone knows what the problem might be, let me know. Thanks in advance for your help.
