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Truck Stalling

Old May 4, 2010 | 06:56 PM
  #1  
dirtballer's Avatar
dirtballer
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From: Nevada
Default Truck Stalling

I have a 04 ram 1500 5.7 hemi qc 2wd this mornning i had to hit the brake kinda hard when i did the truck stalled and then later in the day i pressed the alittle hard on the brake while make a turn and it died again i bought the truck used and i have only had about 8 months and it has never done this does anybody have any clue on why this is happing
 
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Old May 4, 2010 | 07:43 PM
  #2  
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Do a search for "stalling" and you will see what everyone else goes through and what they are told to try. That should help you out.
 
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Old May 4, 2010 | 07:44 PM
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From: La Union, Philippines
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Dirtballer,
This pulled from my 03 manual. Perhaps it will give you an idea. I have not had thi happen to me, so I can't speak from experience. Good luck..
DECELERATION MODE
When the engine is at operating temperature, this
is an Open Loop mode. During hard deceleration, the
PCM receives the following inputs.
˛
Air conditioning select signal (if equipped)

˛
Air conditioning request signal (if equipped)

˛
Battery voltage

˛
Engine coolant temperature sensor

˛
Crankshaft position sensor

˛
Intake manifold air temperature sensor

˛
Manifold absolute pressure (MAP) sensor

˛
Throttle position sensor (TPS)

˛
Camshaft position sensor signal

˛
Park/neutral switch (gear indicator signal—auto.
trans. only)

˛
Vehicle speed
If the vehicle is under hard deceleration with the
proper rpm and closed throttle conditions, the PCM
will ignore the oxygen sensor input signal. The PCM
will enter a fuel cut-off strategy in which it will not
supply a ground to the injectors. If a hard deceleration
does not exist, the PCM will determine the
proper injector pulse width and continue injection.
Based on the above inputs, the PCM will adjust
engine idle speed through the idle air control (IAC)
motor.
The PCM adjusts ignition timing by turning the

ground path to the coil on and off.

Note: I would do a reboot to see if that helped.
 
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Old May 4, 2010 | 08:30 PM
  #4  
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dirtballer
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From: Nevada
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Originally Posted by RedTruck-VA
Dirtballer,
This pulled from my 03 manual. Perhaps it will give you an idea. I have not had thi happen to me, so I can't speak from experience. Good luck..
DECELERATION MODE
When the engine is at operating temperature, this
is an Open Loop mode. During hard deceleration, the
PCM receives the following inputs.


˛
Air conditioning select signal (if equipped)
˛


Air conditioning request signal (if equipped)
˛


Battery voltage
˛


Engine coolant temperature sensor
˛


Crankshaft position sensor
˛


Intake manifold air temperature sensor
˛


Manifold absolute pressure (MAP) sensor
˛


Throttle position sensor (TPS)
˛


Camshaft position sensor signal
˛


Park/neutral switch (gear indicator signal—auto.
trans. only)
˛


Vehicle speed
If the vehicle is under hard deceleration with the
proper rpm and closed throttle conditions, the PCM
will ignore the oxygen sensor input signal. The PCM
will enter a fuel cut-off strategy in which it will not
supply a ground to the injectors. If a hard deceleration
does not exist, the PCM will determine the
proper injector pulse width and continue injection.
Based on the above inputs, the PCM will adjust
engine idle speed through the idle air control (IAC)
motor.
The PCM adjusts ignition timing by turning the
ground path to the coil on and off.

Note: I would do a reboot to see if that helped.


How do you do a reboot?
 
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