Airline leak

Whenever you can, I would still grab a few different size push in connectors (Unions) and throw them in your tool box. They are simple to use, cheap, and can save a service call.

 

Just get two of those shark bite fittings and splice it. Might be worth spending a few bucks and just let the shop deal with it if its in a F/U spot.

 

Iff toy follow the lines you will find a place that the join up with a valve or other connection you can undo. this will allow you to pull the lines down so you can splice them with proper unions. Some people like those push in connections but i personally hate them and will always use the old style brass ferell and insert kind. Check them both out and stock up with a dozen or so assorted sizes of the style you prefer.

 

True story. Right before we took the B75 out of service, Dad was pulled over. Trooper said, 'There's an air leak under there but I don't feel like climbing under there and finding it.' Dad said, 'I wish you would I've been looking for it for weeks!'

 

Sorry if I step on your toes, I can't really apologize for speaking my mind about safety.

Nothing ruins someones day when the truck in front of them losses air pressure and the parking brake valve pops out while you are going 60 mph - I've seen it a few times.

You would not believe the amount of cheap owners who would use electrical or duct tape to fix an air leak. I parked next to one guy in Georgia who used silicone putty on an airline to plug the leak on his truck, he borrowed my creeper to do the job and was so proud that he plugs a huge leak to get by an inspection.

How you described it tells me it is buried in the frame rail and it really can't be patched but has to be replaced with a solid splice on both ends. So you have to use DOT compliant connector fittings to do that, not those barbed fitting that you put a clamp on but those union connectors with the insert you put into the hose. Done right, they don't leak ... oh and please don't use push on ones.

 

Drive up on some wood to 'lift' it if you want to go the cheap route.

 

The "push-on" fittings work fine if you get the quality ones. There are some cheaper ones that aren't DOT approved that aren't worth a flip.

Fixing air lines can be a pain in some locations but finding it is half the job.

 

Put 50/50 soap and water into a spray bottle. Spray the general area that is making noise and look for the soapy water making bubbles. There lies your leak.

 

nothing hard about splicing a airline, if its in a really bad spot to try to get a splice on it you can try to follow the line out to a more accessible spot and slip a new piece of line threw the hard to access area and pull it threw.