Small air leak behind the dash, we found the leak was at the air gauge assembly. Freightliner m2 air leak, how to check and repair air leaks After tightening that fitting it would still leak at about 10 psi per hr
04 Freightliner ABS valve leaking | TruckersReport.com Trucking Forum
Then i fiddled with the manual valve on the auto drain assembly which is shown in my pic and was located at the front bottom of the main air tank, and by repeatedly opening it and letting it snap closed i finally got that to seat without leaking.
The valve set aren't expensive and easy to do on your own which could save you some bucks on labor
I'd say find a used valve set of pull one from a wrecked truck, teflon the fittings, hook the lines back up test for pressure and leaks after its mounted back in place under the dash face. An air leak when the dash valve is pushed, with air escaping from the abs valve vent, suggests a faulty abs modulator or vent valve Since the leak stops when brakes are applied, check the abs valve's internal seals and diaphragms for wear or damage Inspect all air chambers and lines for cracks or loose fittings
Replacing the abs valve or servicing its vent mechanism typically resolves the. Ive got a 2017 freightliner m2 rollback thats got an air brake dash valve that will not stay in brake release position with the ignition key on If the key is off the button will stay depressed It has a new dash valve as it was leaking very badly.
One of the air lines is leaking right at the dash air gauge where the plastic line goes into the plastic bezel for the gauge
I have no idea how that line terminates or if a special fitting is on the end, so i don't want to attempt to drag it out before i know the proper fix This was underneath truck above drivers side air tank Hope this helps.part is bendix k073055 Do you have an air leak when you turn off your m2
Follow along as we find, replace and drop a few choice words make a really easy fix The bags themselves could be leaking, the plumbing from the valve to the bag, or the valve itself could all cause the cab suspension to leak down About the air management units I would think that even if the unit was letting air through when it shouldn't, that the system the air is going to should hold the pressure.
