Didn't find anything similar to my problem. So I figured I'd post. I've got a 2002 SLT plus with the 4.7 and dual climate. And for the love of God I cannot get this truck to blow cold air. I recently replaced the compressor, and recharged it. But I've narrowed it down to the snowflake. For some reason my snowflake doesn't turn on the Compressor. But I know the Compressor works because I've used it in defrost just fine. If there's any info I'm missing. Please feel free to ask.