Daniel Evans Posted September 12, 2014 Report Share Posted September 12, 2014 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. Quote Link to comment Share on other sites More sharing options...
rockfangd Posted September 12, 2014 Report Share Posted September 12, 2014 maybe one of the air lines broke. Do you hear any air leak? Pump is probably loud because it has been running too long Quote GM FAN FOREVER Nice, clean, luxury= fine automobile Link to comment Share on other sites More sharing options...
barczy01 Posted September 12, 2014 Report Share Posted September 12, 2014 Check the rear air shocks for leakage. They will be oily, dirty, rusty where the bladder bellow is located half way up the shock. http://www.rockauto.com/catalog/moreinfo.php?pk=61825&cc=1411872 Quote Link to comment Share on other sites More sharing options...
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