Originally Posted by subfan597

My 01 Suburban was what they called a price leader by the dealership...it has rubber mat flooring...no carpeting, no rear air, no remote locks nor remote starter, no power seats or sunroof, no CD player and certainly no Autoride suspension. It DOES however have the luxury option of a second and third row seat as indicated on the window sticker that I still have, as well as other dreamy features like AM/FM radio, power windows and power door locks. It has more years, miles and memories than any other vehicle that I have owned. It has also cost me more on repairs than any other vehicle that I have owned, but of all the trials and tribulations that i have endured nothing is as frustrating as this damn heating and AC issue that we seem to share. It is posts like yours that I am eternally drawn to and thankful for as it reminds me that I am not alone in my suffering; and if my experience can help some one or theirs can help me, the world is a better place. Let us review...Between the two of us we have replaced or fixed everything possibly related to our conundrum. The one thing that I did that you didn't is repair a difficult to find leak on the high pressure side at a valve. We have both replaced fan clutches but I installed a used one, where I don't know where yours came from except you say that it is Delco. As I mentioned, I heard that a failing clutch can not only cause overheating but put stress on the high pressure side of the cooling system which may be what caused my leak. Yet despite our efforts the assault upon our patience and pockets continues, so let me sum it up as I see it...IF my replacement clutch is failing BUT my AC runs cold ALL the time since the valve replacement, and since we both have done flushes (I believe you said you replaced the radiator as well?), and we KNOW it's not the thermostat because the problem would not be intermittent, then what I think that I need to do is replace that clutch with a new one this time. There is simply nothing left to do on such a bare bones vehicle as mine. As you have the same symptoms in regards to periodic overheating AND warm AC air, you may look to a new clutch as well as at that high pressure valve that may have been damaged due to that same stress on the AC which is caused by a failing clutch which would ALSO explain your overheating...if that doesn't work, then perhaps moving to Canada might be the answer. Good luck, aye?