Glad to hear you got it resolve Your follow up on what the fix was is what makes the forum work, so give yourself a pat on the back as you may save someone else some headache

 

Same problem here; back AC is blowing just fine in back, but not up front. 2 weeks ago I replaced the blower resistor and AC worked perfectly again. Today it went out again up front, so not sure what to try now...

 

Amanda - Mrs. Cusser had front blower issues a few months ago on her 2005 Yukon; since this was intermittent but really a necessity in Arizona summer, and the stuff under the dash is in an awkward position, I had her take it to the local independent mechanic shop I've used. He said there was too much resistance in the blower fan motor itself, and that was causing issues to the blower resistor, so said his experience says to replace both. So he did, and has worked fine since.

 

I have an 07 Suburban 1500. My husband recently replaced MAP Sensor and I noticed after that the blower would go between high to nothing whenever it wanted. A few days later it just went out no speed worked and it would randomly start blowing when it wanted. I thought my husband might have pinched something when replacing the sensor since it happened right after it was installed but I’m not sure what I Should look for. I haven’t had a chance to check fuses but I didn’t think it would work if a fuse was bad. Any thoughts.