Mack · Canada · Crit
Mack CXN, CXP +2 more: Fuel System
Affects Mack CXN, CXP, Cxu, Chu · 2007–2008 — about 20 vehicles.
The hazard
On certain trucks, when the ignition key is in the 'ON' position, the pre-heater, located in the fuel filter base, is energized. If this pre-heater is energized while maintenance is being performed on the fuel filter, diesel fuel could ignite within the filter housing. A fire within the fuel filter housing may spread possibly resulting in property damage or personal injury. Correction: Dealers will inspect and, if required, replace the fuel heater assembly.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational