JRBAMATEX
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- Haslet, TX
I am thinking about rebuilding my Air Hydraulic Unit. The reason is that When I drive the truck it often makes a howling noise from the rear breaks when I start off from a stop. I think what is happening is that the AHU is letting air continue to hold pressure on the hydraulic line even after I let off the breaks. I don't think it is much but I hate to ruin the break shoes if the AHU is keeping a continuous drag on them. I have seen some posts on SS about the need to rebuild the "Air Pack" Assume that is AKA for Air Hydraulic Unit. In the other posts the symptoms are either little or no breaks or break hang up/lock up. I am thinking that I may be in the early stages of the later category. Does this soud right and can anyone give me any advice about rebuilding the air pack? Do I need to take it completeyly apart or is it that there are only some parts that really need to come apart? As always help or advice is welcomed.
Thanks guys
Thanks guys