2008 JEEP COMMANDER fuel pump

CAUTION!
Prolonged operation of the steering system at the end
of the steering wheel travel will increase the steering
fluid temperature and it should be avoided when
possible. Damage to the power steering pump may
occur.
MULTI DISPLACEMENT SYSTEM (MDS) Ð 5.7L
Engine Only
This feature offers improved fuel economy by shutting
off four of the engine's eight cylinders during light load
and cruise conditions. The system is automatic with no
driver inputs or additional driving skills required.
NOTE:The MDS system may take some time to return
to full functionality after a battery disconnect.
TIRE SAFETY INFORMATION
Tire Markings
NOTE:
²P (Passenger)-Metric tire sizing is based on U.S. design
standards. P-Metric tires have the letter ªPº molded
into the sidewall preceding the size designation. Ex-
ample: P215/65R15 95H.
306 STARTING AND OPERATING

Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxy-
genates such as 10% ethanol, MTBE, and ETBE. Oxygen-
ates are required in some areas of the country during the
winter months to reduce carbon monoxide emissions.
Fuels blended with these oxygenates may be used in
your vehicle.
CAUTION!
DO NOT use gasoline containing Methanol or E85
Ethanol. Use of these blends may result in starting
and driveability problems and may damage critical
fuel system components.
Problems that result from using methanol/gasoline
blends are not the responsibility of the manufacturer.
While MTBE is an oxygenate made from Methanol, it
does not have the negative effects of Methanol.
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
or not his/her 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 reformu-
lated gasoline.
STARTING AND OPERATING 335
5

NOTE:Tighten the gas cap about 1/4 turn until you
hear one click. This is an indication that cap is properly
tightened.
If the gas cap is not tighten properly, the Malfunction
Indicator Light 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
ªCHECK GASCAPº message will be displayed in the
EVIC (Electronic Vehicle Information Center). Refer to
ªElectronic Vehicle Information Centerº in Section 4 of
this manual. Tighten the fuel filler cap until a ªclickingº
sound is heard. This is an indication that the fuel filler
cap is properly tightened. Refer to ªOnboard Diagnostic
System Ð OBDIIº in Section 7 of this manual for more
information.
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.
CAUTION!
Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler cap (gas cap). A poorly fitting cap could let
impurities into the fuel system.
STARTING AND OPERATING 343
5

Cav-
ityCartridge
FuseMini Fuse Description
11 40 Amp
GreenHVAC Blower
12 30 Amp
PinkRear Wiper, Ign R/O
13 40 Amp
GreenRear Window De-
froster (EBL)/Heated
Mirror
14 30 Amp
PinkRear HVAC (If
Equipped)
15 Ð Spare
16 50 Amp
RedASD
17 30 Amp
PinkABS Pump
18 40 Amp
GreenAccessory Delay, SeatsCav-
ityCartridge
FuseMini Fuse Description
19 40 Amp
GreenJB Power
20 Ð Spare
21 20 Amp
YellowFuel Pump
22 20 Amp
YellowTCM, A/C Clutch
23 25 Amp
NaturalPower Inverter
24 20 Amp
YellowRear Heated Seats
25 20 Amp
YellowFinal Drive Control
Module (FDCM)
26 15 Amp
BlueBrake Lamps
MAINTAINING YOUR VEHICLE 423
7