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usrjcro11

Puppy Poster
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Everything posted by usrjcro11

  1. I will be ordering new valve tomorrow. will update when I get it in and replaced. thanks
  2. Well you both are correct. Lines are backwards. I was just hooking to old lowboy trailer whichever way made brakes release. No color codes on trailer.Am I correct by saying no air should come out of either hose without trailer service valve pushed in? If this is correct then is trailer protection my problem with air coming out of trailer line without trailer service valve pushed in? thanks
  3. This was problem. Truck had been sitting up for about 6 months. Exhaust line was plugged. Took exhaust line off and it worked. Thanks all that contributed. Newbie in learning curve.
  4. I will do some testing tomorrow. Thanks all for replies. Will report back
  5. I knew what it was suppose to do but my air bags never purged air to assist uncoupling from trailer.
  6. The air bags do not start raising till about 90 psi. Same time as air bag on cab starts raising.
  7. Will test tomorrow. Where should the air exhaust from if switch is working properly? Leveling control valve? Behind dash? Wondering if I may have a plugged exhaust line. Dirt Dobbers are bad here plugging lines. Had a international truck with vacuum assist brake. Brake pedal hard but no brakes.put new booster on no better. Found exhaust line plugged from dirt dobber. Learn expensive lesson.
  8. I will take pictures tomorrow up and down. Noticeable difference.
  9. When I flipped switch another person was by fifth wheel and did not hear any air discharging nor saw airbags go down.
  10. .how long should it take to dump air? Maybe I did not wait long enough. Should air come out of exhaust port on leveling valve?
  11. There is a leveling valve on front drive axle. I had dash apart looking for air leaks. Truck and trailer air supply buttons have airlines coming into the back of them. No wires
  12. Do not thinks it is because airbags adjust without trailer valve engaged. i do have another problems I posted that is separate from this one.
  13. My problem it is not dropping air bags. Am I suppose to do something else after flipping switch? Newbie here my 1991 Mack ch does not have airbags.
  14. Yes raising protected cover and flipping switch up. Sorry for confusion
  15. Unhooked from lowboy trailer today. Discovered air coming out redline when I press brakes without trailer air supply engaged. When I engage trailer air supply air comes out of blue line for trailer which I understand. Is air supposed to come out of the redline with trailer air supply off? If not what do I need to check? Thanks
  16. When I lift switch cover and toggle switch up nothing happens. When I toggle switch down a little bit of air discharges behind the dash. How does this switch work. Bought truck about 9 months ago just now trying it. How do I go about troubleshooting? Thanks
  17. Thanks to all that replied. Put Teflon dope on them
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