If you jack up the truck til the rear end hangs, you will see where the bottom of the airbag has all the little rectangular seal notches. Now look at the black plastic below it, that it seals too. Mine was hideous, and full of crap. My bags would leak down after a day quite a bit. The fix is below!!
It doesnt hurt to check your lines at the pump with soapy water for leaks and or tightness, this will probably not be your leak, but start with this anyways.
1. Clean black plastic pieces with brake cleaner
2. Get a sheet of 400 grit sand paper and have at the black plastic pieces
3. Get a sheet of 800 grit sand paper and have at the black plastic pieces
4. Clean black plastic pieces with brake cleaner a last time
5. Test for leaks over a few days, if needed go to step 6
6. Go buy a can of etching primer $8 and spray several coats on black plastic
Tape off air bags, as they flex, the primer wont stay on very long if painted.
7. Sand with 800 or 1000 grit till smooth as glass, airbags will seal now for sure.
Congrats your done, now it holds air without leaking for 3-4 days before I notice any differance!!
It doesnt hurt to check your lines at the pump with soapy water for leaks and or tightness, this will probably not be your leak, but start with this anyways.
1. Clean black plastic pieces with brake cleaner
2. Get a sheet of 400 grit sand paper and have at the black plastic pieces
3. Get a sheet of 800 grit sand paper and have at the black plastic pieces
4. Clean black plastic pieces with brake cleaner a last time
5. Test for leaks over a few days, if needed go to step 6
6. Go buy a can of etching primer $8 and spray several coats on black plastic
Tape off air bags, as they flex, the primer wont stay on very long if painted.
7. Sand with 800 or 1000 grit till smooth as glass, airbags will seal now for sure.
Congrats your done, now it holds air without leaking for 3-4 days before I notice any differance!!