Do Not Operate The Engine With Failed Parts
Practically all failures give some warning before the parts
fail. Be on the alert for changes in performance, sounds,
and visual evidence that the engine requires service.
Some important clues are:
•
engine misfiring or vibrating severely
•
sudden loss of power
•
unusual engine noises
•
fuel, oil or coolant leaks
•
sudden change, outside the normal operating range, in
the engine operating temperature
•
excessive smoke
•
oil pressure drop
DIESEL EXHAUST BRAKE (ENGINE BRAKING) –
IF EQUIPPED
The exhaust brake feature will only function when the
driver turns the exhaust brake switch to the on position.
Once the switch is in the on position and the vehicle is
moving faster than 5 MPH; the exhaust brake will
automatically operate when the driver removes pressure
from the accelerator pedal. Exhaust braking is most
effective when the engine RPM is higher. The automatic
transmission has been programmed to downshift more
aggressively when the exhaust brake is enabled to in-
crease brake performance.
STARTING AND OPERATING 283
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