check engine JEEP LIBERTY 2002 KJ / 1.G Workshop Manual

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual LIBERTY 2002 KJ / 1.G JEEP JEEP https://www.carmanualsonline.info/img/16/7176/w960_7176-0.png JEEP LIBERTY 2002 KJ / 1.G Workshop Manual

Page 1395 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (b) After disconnection, plastic retainer ring will
remain with quick-connect fitting connector body.
(c) Inspect fitting connector body, plastic retainer
ring and fuel system component for damage.
Re

Page 1396 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual OPERATION
The fuel pressure regulator is a mechanical device
that is not controlled by engine vacuum or the Pow-
ertrain Control Module (PCM).
The regulator is calibrated to maintain fuel system
opera

Page 1397 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual FUEL PUMP
DESCRIPTION
The electric fuel pump is located inside of the fuel
pump module. A 12 volt, permanent magnet, electric
motor powers the fuel pump. The electric fuel pump
is not a separate, serv

Page 1398 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (1) Remove protective cap at fuel rail test port.
Connect the 0±414 kPa (0-60 psi) fuel pressure gauge
(from gauge set 5069) to test port pressure fitting on
fuel rail (Fig. 20).The DRBtIII Scan Tool

Page 1400 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (17) When LCS adapter test leads are attached
into relay cavities, fuel pumpwill be activated.
Determine fuel pump amperage on DRB screen.
Amperage should be below 10.0 amps. If amperage is
below 10.0

Page 1401 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (b) The sides of pump module are equipped with
tension springs (Fig. 29). These springs hold mod-
ule to bottom of fuel tank into 2 formed guides
(Fig. 30). Release module assembly from these 2
guides

Page 1403 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual FUEL RAIL
DESCRIPTION
2.4L
The fuel injector rail is used to mount the fuel
injectors to the engine (Fig. 31). On the 2.4L 4-cylin-
der engine, afuel damperis located near the front
of the fuel rail (

Page 1406 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (14) If fuel injectors are to be removed, refer to
Fuel Injector Removal/Installation.
INSTALLATION
2.4L Engine
(1) If fuel injectors are to be installed, refer to Fuel
Injector Removal/Installation.

Page 1407 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual REMOVAL
Fuel Tank Draining
WARNING: THE FUEL SYSTEM MAY BE UNDER
CONSTANT FUEL PRESSURE EVEN WITH THE
ENGINE OFF. THIS PRESSURE MUST BE
RELEASED BEFORE SERVICING FUEL TANK.
Two different procedures ma

Page 1409 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual (14) Continue lowering tank while guiding remain-
ing hoses and lines.
(15) If fuel tank is to be replaced, remove LDP,
fuel filter and fuel pump module from tank. Refer to
Leak Detection Pump, Fuel F