Three-bolt Connection
• Install the exhaust gas temperature sensor to the aftertreatment diesel oxidation catalyst section. Use the following procedure in the Troubleshooting and Repair Manual, CM2150 Electronic Control System, ISS, ISC, ISL, ISLe, ISDe and QSB3.3 Engines, Bulletin 4021570. Refer to Procedure 019-013 in Section 19.
NOTE: The aftertreatment diesel particulate filter is not 100 percent efficient. Some accumulation of exhaust
residue/soot is normal and does not indicate a damaged aftertreatment diesel particulate filter.
A heavy buildup of exhaust residue/soot can indicate a malfunction of the aftertreatment diesel particulate filter.
If the aftertreatment diesel particulate filter is being replaced due to black smoke, and the exhaust stack is
found to have heavy black soot accumulation, clean the last 152 to 254 mm [6 to 10 in] of the exhaust system outlet.
