SERVICE MANUAL NUMBER 22
Engine Smoking
Black Smoke
1. Overload
2. Restricted air cleaner and /or
3.
4. Faulty injector(s)
5. Restricted or plugged exhaust
6. Insufficient coolant temperature
7.
9. Leaking head gaskets
10. Worn piston rings
90-860074--1 FEBRUARY 2002
Cause
intercooler
Excessive fuel delivery
Excessive idle time (injector coking)
Special Information
3. Refer to SECTION 5E for EDI
diagnosis
Refer to SECTION 5C and / or 5E for
4.
EDI diagnosis
TROUBLESHOOTING
Page 1C-15
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