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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
I have had this issue since 70K miles. Only with the AC on the RPMs go to ~3500 the truck is slow and the engine sounds like a BIG desel truck. After 2 mins or so the RPMs come back in line and the noise stops.
Ford dealers can not find a problem. Can anyone out there help?
Thanks All