FUEL SYSTEM
TABLE OF CONTENTS
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FUEL DELIVERY SYSTEM....................1 FUEL INJECTION SYSTEM ..................21
FUEL DELIVERY SYSTEM
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
GASOLINE/OXYGENATE BLENDS.............1
FUEL DELIVERY SYSTEM ...................2
FUEL PUMP MODULE ......................2
FUEL LEVEL SENSOR......................3
FUEL TANK ..............................3
FUEL INJECTORS .........................3
FUEL FILTER/FUEL PRESSURE REGULATOR....4
PRESSURE-VACUUM FILLER CAP ............4
ONBOARD REFUELING VAPOR RECOVERY
(ORVR)................................5
FLOW MANAGEMENT VALVE ................6
ROLLOVER VALVES .......................6
FUEL TUBES/LINES/HOSES AND CLAMPS ......6
SERVICE PROCEDURES
FUEL SYSTEM PRESSURE RELEASE
PROCEDURE ...........................6
DRAINING FUEL TANK .....................6
HOSES AND CLAMPS ......................6
QUICK-CONNECT FITTINGS .................7
REMOVAL AND INSTALLATION
AUTOMATIC SHUTDOWN RELAY .............9
FUEL PUMP RELAY........................9
FUEL PUMP MODULE ......................9
FUEL PRESSURE/REGULATOR..............11
FUEL PUMP INLET STRAINER...............11
FUEL LEVEL SENSOR .....................11
FUEL RAIL—2.7L ENGINE ..................13
FUEL RAIL—3.2/3.5L ENGINE ...............14
FUEL INJECTORS—2.7L ENGINE ............14
FUEL INJECTORS—3.2/3.5L ENGINE .........15
FUEL TANK .............................15
FUEL FILLER NECK.......................17
FUEL FILLER VENT HOSE..................17
ACCELERATOR PEDAL ....................17
THROTTLE CABLE .......................18
SPECIFICATIONS
TORQUE ...............................19
FUEL SYSTEM PRESSURE .................19
FUEL TANK CAPACITY ....................19
FUEL REQUIREMENTS ....................19
DESCRIPTION AND OPERATION
GASOLINE/OXYGENATE BLENDS
DESCRIPTION
Some fuel suppliers blend unleaded gasoline with
materials that contain oxygen such as alcohol, MTBE
(Methyl Tertiary Butyl Ether) and ETBE (Ethyl Ter-
tiary Butyl Ether). Oxygenates are required in some
areas of the country during winter months to reduce
carbon monoxide emissions. The type and amount of
oxygenate used in the blend is important.
The following are generally used in gasoline
blends:
Ethanol - (Ethyl or Grain Alcohol) properly
blended, is used as a mixture of 10 percent ethanol
and 90 percent gasoline. Gasoline blended with etha-
nol may be used in your vehicle.
MTBE/ETBE - Gasoline and MTBE (Methyl Ter-
tiary Butyl Ether) blends are a mixture of unleaded
gasoline and up to 15 percent MTBE. Gasoline and
ETBE (Ethyl Tertiary Butyl Ether) are blends of gas-
oline and up to 17 percent ETBE. Gasoline blended
with MTBE or ETBE may be used in your vehicle.
LH FUEL SYSTEM 14 - 1
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