<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by LasVegas:
At the rear of your H2 behind the applique trim on the drivers side is a ventilation pressure relief valve. If it is sticking, it will appear that your a/c blower is surging. What you describe sounds like it is building excess pressue, then releasing. When that happens you'll feel/hear a whoosing. One way to diagnose is crack the two back windows about 1/4"-1/2" then drive it and see if it still does it. If it doesn't, it's the pressure relief valve. Oppps...just realized you must have a SUT. Don't know where it's located on the SUT but it's there somewhere. </div></BLOCKQUOTE>
For a minute there, I thought you were just yanking my chain about a pressure release valve. I was thinking, "this ain't no damn airplane." LOL! Thank you very much for the info; very helpful and makes a lot of sense given the nature of this issue.
-Pete
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