Paccar (unofficial) MX Problem Solvers | Hello friends, does anyone know the size of this fitting for the air line for the engine fan clutch assembly | Facebook
2013 PACCAR MX Diagnostic Service Manual 278 | Page Code number P228D Fault code description Engine rail pressure control - Inc
![Another Paccar MX engine having regen problems replaced dozer and def pump and look at this exhaust do you think it is Another Paccar MX engine having regen problems replaced dozer and def pump and look at this exhaust do you think it is](https://f01.justanswer.com/xX67HmVq/image0.jpg)