Dodge RAM TRUCK 1500 1995 Service Manual page 1131

COMPONENT DESCRIPTION/SYSTEM OPERATION—EXCEPT DIESEL 14 - 41
INTAKE MANIFOLD
UPPER HALF
NUTS (4f J9414-57
Fig. 38 Throttle Body—S.OL V-10 Engine
Fig. 39 Air Control Passage—3.9U5.2U5.9L
Engines—Typical
The accelerator pedal cable, speed control cable and
transmission control cable (when equipped) are con­
nected to the throttle arm.
A (factory adjusted) set screw is used to mechani­
cally limit the position of the throttle body throttle
plate. Never attempt to adjust the engine idle
speed using this screw. All idle speed functions are
controlled by the PCM.
FUEL RAIL
The fuel rail supplies the necessary fuel to each in­
dividual fuel injector and is mounted to the intake
manifold (Figs. 41 or 42). The fuel pressure regulator
is not mounted to the fuel rail on any gas powered
engines. It is located on the fuel tank mounted fuel
VACUUM
FITTING
IDLE AIR IDLE AIR
PASSAGE CONTROL (IAC)
MOTOR
VIEW FROM BOTTOM
l Q j n A A Q
Fig. 40 Air Control Passage—8.0L V-10 Engine
pump module. Refer to Fuel Filter/Fuel Pressure
Regulator in the Fuel Delivery System—Except Die­
sel section of this group.
Fig. 41 Fuel Rail—3.9U5.2U5.9L Engines—Typical
CAUTION: 3.9L/S.2L/5.9L ENGINES. The left and
right sections of the fuel rail are connected with a
flexible connecting hose. Do not attempt to sepa­
rate the rail halves at this connecting hose (Fig. 41).
Due to the design of this connecting hose, they do
not use any clamps. Never attempt to install a
clamping device of any kind to the hose. When re­
moving the fuel rail assembly for any reason, be
careful not to bend or kink the connecting hose.