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Old 05-29-2019, 06:11 PM
m3j0n m3j0n is offline
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Join Date: Aug 2018
Location: Florida
Posts: 54
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have inpa and pa soft... luckily i have two 4.8is trucks here with different problems. was able to diagnose it quickly once i figured out how it works. One needed a new EHC module. After that didnt fix the issue, I was stumped. I confirmed that the pump was working, but apparently, not strong enough.

Just a heads up, even if the pump is putting out 10 bar of pressure, it still might not be strong enough to make the system work properly. Swapped the pump and system now works perfectly. Now on to the second car!! lol

Anyone parting out a car with 2axle air suspension?
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