2017 CHEVROLET LOW CAB FORWARD engine

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
152 Driving and Operating
SymptomCauseCorrective Action Reference
Engine does not
start Starter turns over
(Gasoline) No fuel
Make sure there are no
fuel leaks, and then
add fuel-
Fuel pump clogged
4-
Pressure regulator is
faulty
4-
Ignition system is faulty
4-
Engine control (electrical
system) is faulty
4-
Engine starts, but immediately stops Idling speed too low
4-
Fuel filter is clogged
(Diesel)
4-
Air cleaner is clogged
4-
Common rail system is
faulty
4-
Fuel pump is clogged
(Gasoline)
4-
Fuel system is faulty
4-
Engine control (electrical
system) is faulty
(Gasoline)
4-

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Driving and Operating 153
SymptomCauseCorrective Action Reference
Unsteady engine speed (Diesel) There is water or air in
the fuel system
Drain water from fuel
filter or bleed the systemSee
Running Out
of Fuel (Diesel)
0 238 orWater in
Fuel (Diesel) 0236
Fuel system is faulty
4-
Unsteady engine speed (Gasoline) Fuel system is faulty
4-
Ignition system is faulty
4-
Engine control (electrical
system) is faulty
4-

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
154 Driving and Operating
SymptomCauseCorrective Action Reference
White exhaust smoke (Diesel) Engine not sufficiently
warming up
Allow the engine to
warm up
-
Too much engine oil Correct the oil level See
Engine Oil
(Gasoline) 0257 or
Engine Oil (Diesel)
0 251
Engine Control system
faulty
4-
Fuel system faulty
4-
Exhaust injector
4-
Continuous idling for a
long period (more than
two hours) With the vehicle
stationary in a place
where it will not obstruct
traffic, hold down the
accelerator pedal and
check that white smoke
is not emitted
-

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Driving and Operating 155
SymptomCauseCorrective Action Reference
Black exhaust smoke (Diesel) Engine Control system
faulty
4-
The air cleaner clogged
4-
Fuel system faulty
4-
Exhaust system clogged
4-
Exhaust injector
4-
Diesel particulate filter
(DPF) faulty
4-
Engine is overheating No engine coolant Add engine coolant
See
Engine
Coolant 0263
Front of radiator is
clogged with dirt Wash clean with tap
waterSee
Exterior Care
0 334
Radiator cap not
sufficiently tightened Make sure it is firmly
tightened or replace the
radiator cap
-
Fan belt loose Adjust the tension or
replace the beltSee
Engine Drive
Belt Routing 0396
Engine coolant dirty
4-
Fan clutch is faulty
4-
Radiator cap dirty or
faulty Clean or replace -

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
156 Driving and Operating
SymptomCauseCorrective Action Reference
Oil pressure is low Improper engine oil
viscosity
Change to an oil with
proper viscositySee
Engine Oil
(Gasoline) 0257 or
Engine Oil (Diesel)
0 251
Engine oil level too low Add engine oil See
Engine Oil
(Gasoline) 0257 or
Engine Oil (Diesel)
0 251
Engine inner
components are faulty
4-
Meter, indicator/warning
lights or switches faulty
4-

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Driving and Operating 157
SymptomCauseCorrective Action Reference
Not enough engine power Parking brake not fully
released
Make sure it is fully
released
-
Brake dragging
4-
Air cleaner clogged
4-
Fuel filter clogged
4-
Engine control system
faulty
4-
Common rail system
faulty
4-
Engine faulty
4-
DPF clogged (Diesel)
4-
Brakes not effective Drum-to-lining gap too
large
4-
Air in brake fluid
4-
Brake system failure
4-

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Driving and Operating 161
Emergencies (Disabled
Vehicle)
When the Vehicles
Breaks Down
When the Vehicle Stops While
Driving
The brake booster will no longer
operate, brake effectiveness will be
reduced. If the engine cannot be
started, promptly have the vehicle
inspected and repaired.
If the engine stopped because the
vehicle ran out of fuel while driving,
refueling alone will not be enough to
restart the engine. Bleed the fuel
system after refueling the vehicle.
When the Fuel Tank is Empty
SeeRunning Out of Fuel (Diesel)
0 238.
When the Engine Stalls and
Cannot Be Restarted
Move the selector lever to the "N"
position and push the vehicle to a
safe place.
{Warning
Vehicle operations will change, so
stop the vehicle in a safe place
with the following in mind.
The power steering system will
not work so the steering wheel
will be hard to turn. It will require
more strength than during normal
operation.
As the brake booster will no
longer be functional, brake
effectiveness will be greatly
reduced. Be sure to apply more
pressure than usual to the brake
pedal.
If the power assist steering
system goes out because the
engine has stopped or the assist
system has malfunctioned, the
vehicle can still be steered.
However, much greater effort is
needed, especially in sharp turns
or at low speeds.
You or others could be seriously
injured. When the Vehicle Breaks Down
During Driving
1. Use the hazard warning flasher any time to warn other drivers,
day or night, and pull the
vehicle immediately over to a
safe place that does not
impede traffic (shoulder). Place
the triangle reflectors to alert
other traffic to the presence of
your vehicle.
2. If the vehicle can be exited safely, have the other
passengers get out and wait in
a safe place.
3. If the vehicle can be exited safely, walk to a safe place and
take appropriate measures by
using the closest
telephone, etc.
See Hazard Warning Flashers
0 105.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
162 Driving and Operating
If There is a Fuel Leak
{Danger
Leaking fuel from the vehicle is
dangerous due to possible
combustion or explosion. Stop the
engine immediately.
You or others could be seriously
injured or killed.
Starting and
Operating
New Vehicle Break-In
Good vehicle care begins with
proper break-in. While every new
vehicle goes through rigid factory
and dealer inspection and tests
before delivery, the care you give
your vehicle during the initial
break-in period can pay off in longer
life, better performance and more
economical operation.
It is therefore always recommended
that during the initial 1 000 km
(600 mile) break-in period, the
following few simple precautions are
carefully observed.
Follow the recommendations listed
below for gasoline and diesel
engines:
.Warm up the engine by driving
easily for the first few minutes
before placing it under load. .
Do not drive for extended
periods at any one constant
speed, either fast or slow, during
the first 800 km (500 miles).
. Use the correct gear to maintain
the desired road speed without
lugging the engine.
. Avoid racing the engine,
full-throttle starts and aggressive
application of brakes when
stopping.
. Keep tires properly inflated for
the load carried.
. Check lubricant levels in the
engine and transmission weekly.
. For vehicles with gasoline
engines, keep speeds below
121 km/h (75 MPH) for the first
800 km (500 miles).
Follow the additional diesel only
recommendations listed below:
. Keep speeds below 80 km/h
(50 MPH) for the first 800 km
(500 miles).