2015 JEEP WRANGLER fuel pump

Over 40 auto manufacturers worldwide have issued and
endorsed consistent gasoline specifications (the World-
wide Fuel Charter, WWFC) which define fuel properties
necessary to deliver enhanced emissions, performance,
and durability for your vehicle. The manufacturer recom-
mends the use of gasolines that meet the WWFC speci-
fications if they are available.
Reformulated Gasoline
Many areas of the country require the use of cleaner
burning gasoline referred to as “Reformulated Gasoline.”
Reformulated gasoline contain oxygenates and are spe-
cifically blended to reduce vehicle emissions and im-
prove air quality.
The manufacturer supports the use of reformulated gaso-
line. Properly blended reformulated gasoline will pro-
vide excellent performance and durability of engine and
fuel system components.
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as Ethanol.
CAUTION!
DO NOT use gasoline containing Methanol or gaso-
line containing more than 10% Ethanol. Use of these
blends may result in starting and drivability prob-
lems, damage critical fuel system components, cause
emissions to exceed the applicable standard, and/or
cause the “Malfunction Indicator Light” to illumi-
nate. Pump labels should clearly communicate if a
fuel contains greater than 10% Ethanol.
Problems that result from using gasoline containing
Methanol or gasoline containing more than 10% Ethanol
are not the responsibility of the manufacturer and may
not be covered under New Vehicle Limited Warranty.
526 STARTING AND OPERATING

E-85 Usage In Non-Flex Fuel Vehicles
Non-Flex Fuel Vehicles (FFV) are compatible with gaso-
line containing 10% ethanol (E10). Gasoline with higher
ethanol content may void the New Vehicle Limited
Warranty.
If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•Operate in a lean mode.
•OBD II “Malfunction Indicator Light” on.
•Poor engine performance.
•Poor cold start and cold drivability.
•Increased risk for fuel system component corrosion.
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
•Drain the fuel tank (see your authorized dealer).
•Change the engine oil and oil filter.
•Disconnect and reconnect the battery to reset the
engine controller memory.
More extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
Methylcyclopentadienyl Manganese Tricarbonyl (MMT)
is a manganese-containing metallic additive that is
blended into some gasoline to increase octane. Gasoline
blended with MMT provides no performance advantage
beyond gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces spark plug
life and reduces emissions system performance in some
vehicles. The manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT content
of gasoline may not be indicated on the gasoline pump,
5
STARTING AND OPERATING 527

WARNING!(Continued)
•Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and may cause the MIL to turn on.
•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.
NOTE:
•When the fuel nozzle “clicks” or shuts off, the fuel tank
is full.
•Tighten the gas cap about 1/4 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 MIL will
come on. Be sure the gas cap is tightened every time
the vehicle is refueled.
Loose Fuel Filler Cap Message
After fuel has been added, the vehicle diagnostic system
can determine if the fuel filler cap is possibly loose,
improperly installed, or damaged. If the system detects a
malfunction, the “gASCAP” message will display in the
odometer display. Tighten the gas cap until a#clicking#
sound is heard. This is an indication that the gas cap is
properly tightened. Press the odometer reset button to
turn the message off. If the problem persists, the message
will appear the next time the vehicle is started. This
might indicate a damaged cap. If the problem is detected
twice in a row, the system will turn on the MIL. Resolving
the problem will turn the MIL off.
5
STARTING AND OPERATING 531

Cavity Cartridge FuseMini FuseDescription
J525 Amp Clear–Passenger Door Node
J640 Amp Green–Anti-Lock Brake System (ABS) Pump/
Stability Control System
J730 Amp Pink–Anti-Lock Brake System (ABS) Valve/
Stability Control System
J8–––
J940 Amp Green–PZEV Sec Motor/Flex Fuel
J1030 Amp Pink–Headlamp Wash Relay/Manifold Tuning
Valve
J1130 Amp Pink–Sway Bar
J1230 Amp Pink–Rear Blower Motor/Radiator Fan
J1360 Amp Yellow–Ignition Off Draw (IOD) – Main
J1440 Amp Green–Rear Defroster
J1540 Amp Green–Front Blower
J1740 Amp Green–Starter Solenoid
7
MAINTAINING YOUR VEHICLE 635

Cavity Cartridge FuseMini FuseDescription
M16–10 Amp RedAirbag Module
M17–15 Amp BlueLeft Tail/License/Park Lamp
M18–15 Amp BlueRight Tail/Park/Run Lamp
M19–25 Amp ClearAuto Shut Down (ASD #1 and #2)
M20–15 Amp Blue Cabin Compartment Node Interior Light,
Switch Bank
M21–20 Amp YellowAuto Shut Down (ASD #3)
M22–10 Amp RedRight Horn (HI/LOW)
M23–10 Amp RedLeft Horn (HI/LOW)
M24–25 Amp ClearRear Wiper
M25–20 Amp Yellow Fuel Pump, Diesel Lift Pump – Export Only
M26–10 Amp Red Power Window Switch, Driver Window
Switch
M27–10 Amp Red Ignition Switch Feed, Wireless Module
M28–10 Amp RedPowertrain Control Module
638 MAINTAINING YOUR VEHICLE

Cavity Cartridge FuseMini FuseDescription
M29–10 Amp RedPowertrain
M30–15 Amp Blue Wiper Motor Frt, J1962 Diagnostic Feed
M31–20 Amp YellowBackup Lamps
M32–10 Amp RedAirbag Controller, TT EUROPE
M33–10 Amp RedPowertrain Controller
M34–10 Amp Red Park Assist, Climate Control System, Head-
lamp Wash, Compass
M35–10 Amp RedHeated Mirrors
M36–20 Amp YellowPower Outlet
M37–10 Amp RedAnti-Lock Brake System, Electronic Stability
Control, Stop Lamp Switch, Fuel Pump Relay
M38–25 Amp ClearLock/Unlock Motors
7
MAINTAINING YOUR VEHICLE 639