2002 DODGE RAM Service Repair Manual

Page 1401 of 2255

DODGE RAM 2002  Service Repair Manual INSTALLATION
The fuel injectors are located in the top of the cyl-
inder head between the intake/exhaust valves (Fig.
18).
(1) Inspect fuel injector.
(a) If necessary, perform pressure test of injecto

Page 1402 of 2255

DODGE RAM 2002  Service Repair Manual (g) If any of these conditions occur, replace injec-
tor.
(2) Thoroughly clean fuel injector cylinder head
bore with special Cummins wire brush tool or equiv-
alent (Fig. 24). Blow out bore hole with

Page 1403 of 2255

DODGE RAM 2002  Service Repair Manual FUEL TEMPERATURE SENSOR
DESCRIPTION
Two different fuel temperature sensors are used.
One of the sensors is located inside of the Bosch
VP44 fuel injection pump and is a non-serviceable
part. The other

Page 1404 of 2255

DODGE RAM 2002  Service Repair Manual (4) Remove engine oil dipstick tube mounting bolt
(Fig. 28). Position dipstick tube to the side.(5) Disconnect heater electrical cables at cable
mounting studs (Fig. 28).
(6) Disconnect ground cable b

Page 1405 of 2255

DODGE RAM 2002  Service Repair Manual REMOVAL
The relays are located in engine compartment,
bolted to left inner fender below left battery (Fig. 30).
The mounting bracket and both relays are replaced
as an assembly.
(1) Disconnect both ne

Page 1406 of 2255

DODGE RAM 2002  Service Repair Manual REMOVAL - DIESEL
The IAT sensor is located in the left/rear side of
the intake manifold (Fig. 32).
The IAT sensor is located in the left/rear side of
the intake manifold (Fig. 32).
(1) Disconnect elec

Page 1407 of 2255

DODGE RAM 2002  Service Repair Manual MAP SENSOR
DESCRIPTION - DIESEL
The MAP sensor is installed into the rear of the
intake manifold (Fig. 31).
OPERATION - DIESEL
The MAP sensor reacts to air pressure changes in
the intake manifold. It

Page 1408 of 2255

DODGE RAM 2002  Service Repair Manual THROTTLE CONTROL CABLE
REMOVAL
(1) Disconnect both negative battery cables at both
batteries.
(2) From inside vehicle, hold up accelerator pedal.
Remove plastic cable retainer and throttle cable core