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M925 front axle will not lock in freezing temps
The no 6x6 when cold can result from 2 things. A froze up PPV will result in no wipers. Horn or 6x6 lock. However being that the pressure protection air lines go thru a 4 way block that supplies the transfer case with air before heading to the front of the truck. If the wipers and horn are...- simp5782
- Post #13
- Forum: 5-ton and up
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M925 front axle will not lock in freezing temps
Your wipers. 6x6 and horn get all their air from the wet tank which has a pressure protection valve. It is the first tank in the system after the air dryer. Why it freezes up cause the wet tank catches water and the ppv is at a low spot. The whole air line could be freezing up from residue in...- simp5782
- Post #4
- Forum: 5-ton and up
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M925 front axle will not lock in freezing temps
Are your wipers and horn working? When you can not lock the front and in. If so the pressure protection valve is freezing up. Which means too much moisture in your system. Drain your tanks daily and if you have not serviced your air dryer lately you should or replace it.- simp5782
- Post #2
- Forum: 5-ton and up