Start The Engine; Air System Replacement Procedures; Air Crossover - Replacement - Dodge D250 1990 Service Manual

Air System
Page 11-12
Exhaust System and Intake Manifold
DODGE Turbo Diesel
Start the Engine
Do not hold the ignition switch in the start position longer than
10 seconds.
If the engine does not start, turn the ignition switch to the "OFF"
position.
Return the ignition switch to the "ON" position then begin the
normal starting cycle again.
• C / C V F
15°C = -59°F
Intake Manifold Healer
Operati o n—Engi n e Intake
Manifold Temperature
Preheat Cycle Time
Ignition Key O N
'Before crank cycle
Postheat Cycle
Occurrence
Ignition Key O N
'After trank cycle
Above 15°C [S9°F] 0 Seconds No
- 9 ° C [1I°F] to
15°C [Si'FJ 10 Seconds Yes
- 18'C [0 o F] to
- 9 a C [15 C F] 15 Seconds Yes
-25°C [-15°F] to
_18»C tO°F] 17.5 Seconds Yes
Below -26°C
C-15°FJ
20 Seconds Yes
NOTE: The KSB valve activation voltage is independent of the intake
manifold heater control system. The KSB valve wilt be activated any time
(he manifold temperature is above 15"C [59*F| and the ignition kev is in
the ON position.
Note: If the intake manifold air temperature is below -9°C
[15°F] (early module before serial number 0080000A) 15°C
[59°F] (late module), the heater will again heat after the engine
starts. This will repeat until the intake manifold air temperature
increases to -9°C [15°F] (early module before serial number
0080000A) 15°C [59°F] (late module).
^ ^ ^ ^
all %
^ ^ ^ ^
Air System Replacement Procedures
Air Crossover - Replacement
10mm, 13mm
Disconnect the throttle rod from the throttle lever. Remove the
four mounting capscrews (A). Loosen the throttle control
bracket lower mounting capscrew (B) and move the top end
away from the engine.