I have an 1999 International TowMaster 4700 530DT that is by far the best truck I have ever lived on the road with as it is used for business. Today's temp. outside was 9 degrees though and my air gauge was going from 0 to 135 psi. The suspension, the bed lift and the horn going from not working to working well and then not working again. I know that it has a separator on it but is it like the Semis I used to drive where we put stuff in the lines to keep it thawed? If so, where do I add it? I know that this is not worded well but maybe one of you can give me some ideas of where to start. Thanks ahead of time!
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