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Suspension air pump

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Pump in rear passenger side quarter panel making loud noise and staying on for prolonged periods, 8min. I assume this pump is for the air suspension for the rear shocks and that it is going out. going to pull the cover tomorrow and check it out. Is there anything i need to know to replace it? any tricks? Not much information out there.

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Check the rear air shocks for leakage. They will be oily, dirty, rusty where the bladder bellow is located half way up the shock.


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