--- In dmcnews@xxxx, "Graham WELLS" <gwells@xxxx> wrote: Have you put a gauge on it immediately after movement at speed? Freon condenses much faster as air flow increases over the condensor. This actually LOWERS pressure in the evaporator. That's one reason I drive a car before adding that last can of freon (and why I don't rely on gauge readings in the driveway). Remember: with A/C everything's backwards. Bill Robertson #5939 > I thought at first that it might be > a vacuum problem, i.e. when accelerating, vacuum obviously decreases, > and if there were a leak then it might have an effect on the flap > positions. However it appears to be more related to vehicle movement. > Might it need regassing? It cycles regularily as one would expect with > no indications of being low in gas. > Any ideas? > > Graham Wells > VIN 17152