When I turn the car off the front bags will deflate & I have to sit & wait for them to refill for about 5 minutes or so. Solenoids replaced but did nothing. The mechanic said it MAY have a leak but I replaced the original about 5 years ago. The car in the morning will sag in the like a hot rod ALMOST all the time. Sometimes when I turn left into a lot the bags deflate, sensor maybe? Thoughts?