2010 JEEP LIBERTY fuel pump

•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
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 emission 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; therefore, you should ask your gasoline retailer whether
the gasoline contains MMT. It is even more important to
look for gasolines without MMT in Canada, because
MMT can be used at levels higher than those allowed in
the United States. MMT is prohibited in Federal and
California reformulated gasoline.Materials Added To Fuel
All gasoline sold in the United States is required to
contain effective detergent additives. Use of additional
detergents or other additives is not needed under normal
conditions and they would result in additional cost.
Therefore, you should not have to add anything to the
fuel.
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STARTING AND OPERATING 375

WARNING!
•Never have any smoking materials lit in or near
the vehicle when the gas cap is removed or the
tank filled.
•Never add fuel when the engine is running. This is
in violation of most state and federal fire regula-
tions and will 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 one 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 MIL will
come on. Be sure the gas cap is tightened every time
the vehicle is refueled.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
gASCAP” message will display in the odometer or a
“CHECK GASCAP” message will be displayed in the
Electronic Vehicle Information Center (EVIC). Refer to
“Electronic Vehicle Information Center” in Section 4 of
this manual. Tighten the fuel filler cap until a “clicking”
sound is heard. This is an indication that the fuel filler
cap is properly tightened. Refer to “Onboard Diagnostic
System — OBD II” in Section 7.
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STARTING AND OPERATING 379

Cavity CartridgeFuseMini-
Fuse Description
J3 30 Amp Pink — Rear Door Modules
J4 25 Amp White — Driver Door Node
J5 25 Amp White — Passenger Door Node
J6 40 Amp Green — Anti-Lock Brake Sys-
tem (ABS) Pump/ESP
- if equipped
J7 30 Amp Pink — Anti-Lock Brake Sys-
tem (ABS) Valve/ESP
- if equipped
J8 40 Amp Green — Power Seats - if
equipped
J9 40 Amp Green — PZEV/Flex Fuel - if
equippedCavity CartridgeFuseMini-
Fuse Description
J10 30 Amp Pink — Headlamp Wash Re-
lay - if equipped/
Man Tuning Valve - if
equipped
J11 30 Amp Pink — Sway Bar - if
equipped/Thatchm
Lk-Ulk - if equiped/
Pwr Sld Dr Mod - if
equipped
J13 60 Amp Yellow — Ignition Off Draw
(IOD)
J14 40 Amp Green — EBL (Rear Window
Defogger) - if
equipped
J15 30 Amp Pink — Rear Blower - if
equipped
7
MAINTAINING YOUR VEHICLE 455

Cavity CartridgeFuseMini-
Fuse Description
M20 — 15 Amp BlueInterior Lighting/
Steering Wheel
Switches - if
equipped/Switch
Bank/Electronic Ve-
hicle Information
Center (EVIC) - if
equipped
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 NaturalRear Wiper - if
equippedCavity Cartridge
FuseMini-
Fuse Description
M25 — 20 Amp YellowFuel Pump
M26 — 10 Amp RedPower Mirror Switch/
Driver Window
Switch
M27 — 10 Amp RedIgnition Switch/
Wireless Control
Module (WCM)/
Steering Column Lock
- if equipped
M28 — 10 Amp RedPowertrain Control
Module (PCM)
M29 — 10 Amp RedOccupant Classifica-
tion Module (OCM)
M30 — 15 Amp BlueRear Wiper Module -
if equipped/
Diagnostic Link
7
MAINTAINING YOUR VEHICLE 459