Engine Runaway; Refueling The Vehicle - Gasoline; Engine - RAM Commercial CHASSIS CAB 3500 2021 Owner's Manual

ENGINE RUNAWAY

Diesel engine runaway is a rare condition
affecting diesel engines, where the engine
consumes its own lubrication oil and runs at
higher and higher RPM until it overspeeds to
a point where it destroys itself due to either
mechanical failure or engine seizure through
lack of lubrication.
WARNING!
In case of engine runaway due to flammable
fumes from fuel spills or turbocharger oil
leaks being sucked into the engine, do the
following to help avoid personal injury and/or
vehicle damage:
Turn the ignition switch to the OFF position.

Using a CO2 or dry chemical type fire extin-

guisher, direct the spray from the fire extin-
guisher into the grille on the passenger side so
that the spray enters the engine air intake.
The inlet for the engine air intake is located
behind the passenger side headlamp and
receives air through the grille.
REFUELING THE VEHICLE — GASOLINE

ENGINE

CAUTION!
Damage to the fuel system or emissions

control system could result from using an
improper fuel tank filler tube cap (fuel filler
cap). A poorly fitting cap could let impurities
into the fuel system. Also, a poorly-fitted
aftermarket cap can cause the MIL
(Malfunction Indicator Light) to illuminate
due to fuel vapors escaping from the
system.
A poorly fitting fuel filler cap may cause the

MIL to turn on.
To avoid fuel spillage and overfilling, do not

"top off" the fuel tank after filling.
NOTE:
When the fuel nozzle "clicks" or shuts off the
fuel tank is full.
STARTING AND OPERATING
WARNING!
Never have any smoking materials lit in

or near the vehicle when the gas cap is
removed or the tank is being filled.
Never add fuel to the vehicle when the

engine is running. This is in violation of
most state and federal fire regulations and
may cause the MIL to turn on.
NOTE:
Tighten the gas cap a quarter turn until you hear
one click. This is an indication that the cap is
properly tightened.
If the gas cap is not tightened properly, the
Malfunction Indicator Light will come on.
Be sure the gas cap is tightened every time the
vehicle is refueled.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place gas
containers on the ground while filling.
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