04 Meridian with pump noise under hood
Have had a problems recently with the vacuum pump under the hood running continuosly. Fortunately I have found older threads on this subject which were helpful in diagnosing the problem (hose leak to vacuum pump that operate dash A/C controls) and I have partially fixed the problem by replacing a broken hose that attaches to one of the vacuum modulators. Now the vacuum pump is silent except when I set the A/C to Max air setting, then the pump runs continuously and the air only moves thru the defroster vent near the windshield. So I have concluded that I still have a vacuum leak somewhere in the system, but I cannot locate either of the other two vacuum modulators to check the hose connections. Anyone know where they are located ?
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