Just looking to confirm some of the operating logic of the RAS system on my 2007 TC.
Venting (lowering) and filling (raising) are both accomplished at the compressor assembly under the hood, correct? Just a matter of whether the vent solenoid or the compressor motor is energized? The air bag solenoids open during both tasks, they function exactly the same whether the suspension is raising or lowering?
I am beginning to suspect that my newfound '07 has a lazy compressor, leaky air line from the compressor to the bags, or the controller is bad and not opening the bag solenoids during a fill. The solenoids and bags are definitely OK, the car maintains height perfectly when parked for days and the ~1in drop after turning off the engine and opening/closing door works as it should. However, when filling, the compressor runs on and on, sometimes tripping the Check Air Suspension message. The ride height does appear to sustain in the long term, which means the filling is half-a$$ed working. My old '02 MGM, which was a very low-mileage vehicle, only took about 10 seconds to raise the car.
Venting (lowering) and filling (raising) are both accomplished at the compressor assembly under the hood, correct? Just a matter of whether the vent solenoid or the compressor motor is energized? The air bag solenoids open during both tasks, they function exactly the same whether the suspension is raising or lowering?
I am beginning to suspect that my newfound '07 has a lazy compressor, leaky air line from the compressor to the bags, or the controller is bad and not opening the bag solenoids during a fill. The solenoids and bags are definitely OK, the car maintains height perfectly when parked for days and the ~1in drop after turning off the engine and opening/closing door works as it should. However, when filling, the compressor runs on and on, sometimes tripping the Check Air Suspension message. The ride height does appear to sustain in the long term, which means the filling is half-a$$ed working. My old '02 MGM, which was a very low-mileage vehicle, only took about 10 seconds to raise the car.
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