Need help to raise car

Hello, pneumatic suspension systems have their own test procedures performed with diagnostic tools to determine cause of component failures. Hands on leak testing is needed; either the system is venting air out due to thinking the ride height is excessive or there is a compressor or dryer leak or at the lines to the compressor itself. Without hands on testing, it's guessing - so I don't really know what to recommend other than professional hands on testing. Clearly you've suggested there are no leaks - but something is going wrong and you could use another pair of eyes to evaluate the concern. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.