So background on my truck (94 379). Since I have owned it, it has always leaked down fairly quickly and some of the leaks have been easy to find and fix, and some haven’t.
My goals are to replace every single air line on it as I can in the future however it has taken me up until recently to really get a handle on it just component/parts leaks. Of course I expected this with an older truck.
Parts replaced so far… which hasn’t been expensive just sometimes hard to find leaks.
Door actuators for HVAC system (air actuated on many older trucks)
Rebuilt my slider valves on A/C HVAC sliders in dash by replacing the poppet valves inside
Horton fan clutch solenoid
Drain valve on Air Tank (just found that one recently)
I had replaced leveling valve once and after a bit over a year that one was leaking so just replaced it.
Two air bags (although not leaking, just a bit rough) and I have checked the bags after overinflating them.
Air Dryer and Air Compressor were replaced in early 2021 not for leaks but still important part of air system
All brake lines (my front were in rough shape I noted while greasing truck up recently so I just replaced every one)
So before the recent round of crawling over and around it with a squirt bottle and a microphone air leak detector with head phones it was not uncommon for it to easily leak down overnight or even within a couple hours, after replacing one air tank drank and the recent leveling valve it now holds air for at least 72+ hours. Which is a freaking awesome for this truck.
So I’m just curious how long y’all’s trucks legitimately hold air? Maybe mention age of truck, just curious.
How long does it take your truck to leak down (Air)
Discussion in 'Ask An Owner Operator' started by staceydude, May 31, 2022.
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