2006 2500 stumbling\cutting out

Truck engine shuts off for 1 or 2 seconds and continues on after the fault.

I have a problem with my sprinter. Sometimes I feel the engine going off when i am driving it. This problem lasts 2 or 4 seconds and the engine turn on and turns itself on again. When this happens no signal appears on the dashboard, I just feel that there is no power on the accelerator. With the same impulse that the engine brings, it turns itself on without using the gear to turn it on. Now also when turning the key to the position of ignition, I hear a clap and the lights of the board turn on and go off. There are no fault codes on the dashboard. The next attempt starts without this fail for a little time.

This fault has not left me in the way, but I feel distrust in the vehicle.
 

greenyooper

New member
I have the strangest problem with our people mover. Starts fine, but running down the road it will cut out for an instant and then pick right back up as if nothing happened. It feels like the key was turned off and on quickly. At first it was an occasional annoyance, but it has gotten so bad that I'm afraid to drive it in heavy traffic.

Scanguage shows a P0336, P0674, and P0672

Checked the break switch and replaced the crank position sensor. Any thoughts or similar experiences out there?

Thanks a bunch!
- Carl
 
I have the same problem. Today i write in this forum. I can not explain the problem like you because i do not know english. In some hours i will go with a mechanic. If the mechanic can repair the problem i write here the answer.

Goog luck.
 

SneakyAnarchistVanCamper

Reading till my eyesbleed
P0336 is pretty clear you have a problem with the crank wires, I would start there. Using the manual, locate the ECM pins for the crank wires, unplug the ecm connector to access the crank sensor pins, unplug the crank sensor, turn engine and key off. With an accurate multimeter, in ohms mode, place a lead on either end of the crank wire (One at crank sensor connector spade, one at ecm female pin) and measure resistance of the wire. Or, replace the wires. Inspect cam wires too, sometimes the codes get them mixed up. What part number did you replace the crank sensor with? Oem is important here.

Does the engine actually shut off, or does the rpm just drop? If I let my foot on the brake slightly sometimes the ecm will cut out the throttle, that's not what you're experiencing?
 

2004VannaWhite

Big White Box
Engine wiring harness perhaps? These are somewhat notorious for developing intermittent open/short in the main engine harness where it lays over the intake manifold and runs down the block.


Sent from my iPad using Tapatalk
 

lindenengineering

Well-known member
I have the same problem. Today i write in this forum. I can not explain the problem like you because i do not know english. In some hours i will go with a mechanic. If the mechanic can repair the problem i write here the answer.

Goog luck.
Snr Roberto
Moi buenas dias y saludos .
En respecto de esa problema, por favor es moi importante y inicialemente de veficar el condicion de "harness" principal de motor.
Paga atencion especialmente en las areas de siguente, y significante es:-
.
Uno) A donde el harness electrica se toma una curva redondo el filtro de gasoil. En effecto quando es flojo, se raspa contra el base y se danas las cables internales. La manera de inspeccion es corta las clips plasticas (les zipo ties) y fisicamente llevantar por mano el harness y verificar condiciones visualmentes ! En effecto doblar el harness un poquito sobre sus manos y checkear visualmente por extencion.

Dos)
De checkiar los mismos condiciones de danos circana de columna de direccion . Hay propensidad de raspar contra las areas de mechanismos de direccion, tal columna y conjunto universal . Especialmente si es floto o flotando en ese area por faltas de securidades ( como tie wrap./zip tie ).
Amistades
Dennis
Snr Tuercas Viejas.:smilewink:
 

lindenengineering

Well-known member
Re: Truck engine shuts off for 1 or 2 seconds and continues on after the fault.

Snr Roberto.
A primero puedes tu analisar el motor por scanner buscando por fajas ?

Hay debes ser codigos de fajas en almacen o memoria de computador de control del motor.
Con extraccion de es recordiario en ese foro es possible de en puntan a las areas de problemas.
Saludo Dennis
 
P0336 is pretty clear you have a problem with the crank wires, I would start there. Using the manual, locate the ECM pins for the crank wires, unplug the ecm connector to access the crank sensor pins, unplug the crank sensor, turn engine and key off. With an accurate multimeter, in ohms mode, place a lead on either end of the crank wire (One at crank sensor connector spade, one at ecm female pin) and measure resistance of the wire. Or, replace the wires. Inspect cam wires too, sometimes the codes get them mixed up. What part number did you replace the crank sensor with? Oem is important here.

Does the engine actually shut off, or does the rpm just drop? If I let my foot on the brake slightly sometimes the ecm will cut out the throttle, that's not what you're experiencing?

The problem occurs at several rotations per minute. So that in idle it turns to turn off the engine. Sometimes the problem happens when pressing the brake sometimes without pressing it.
 
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2004VannaWhite

Big White Box
Re: Truck engine shuts off for 1 or 2 seconds and continues on after the fault.

Snr Roberto.
A primero puedes tu analisar el motor por scanner buscando por fajas ?

Hay debes ser codigos de fajas en almacen o memoria de computador de control del motor.
Con extraccion de es recordiario en ese foro es possible de en puntan a las areas de problemas.
Saludo Dennis
While this suggestion certainly has merit, if it were a system wide power disconnect would it not be possible for NO codes to be stored as the "event" is total power loss (unable to store codes with no extant power to modules)?
 

MillionMileSprinter

Formerly Type2Teach
Y tambien no falles de chequear la caja de fuses debajo del steering wheel. A veces los conecciones de solder se secan y fallan. Tambien hay un relay del ECU que se puede empezar a fallar.
 
Snr Roberto
Moi buenas dias y saludos .
En respecto de esa problema, por favor es moi importante y inicialemente de veficar el condicion de "harness" principal de motor.
Paga atencion especialmente en las areas de siguente, y significante es:-
.
Uno) A donde el harness electrica se toma una curva redondo el filtro de gasoil. En effecto quando es flojo, se raspa contra el base y se danas las cables internales. La manera de inspeccion es corta las clips plasticas (les zipo ties) y fisicamente llevantar por mano el harness y verificar condiciones visualmentes ! En effecto doblar el harness un poquito sobre sus manos y checkear visualmente por extencion.

Dos)
De checkiar los mismos condiciones de danos circana de columna de direccion . Hay propensidad de raspar contra las areas de mechanismos de direccion, tal columna y conjunto universal . Especialmente si es floto o flotando en ese area por faltas de securidades ( como tie wrap./zip tie ).
Amistades
Dennis
Snr Tuercas Viejas.:smilewink:
This morning I turned on the truck very well, I turned it on several times looking for the fault and did not find it. With the engine on i move the harness with a hand and did not turn off or showed error. I think the error only comes with it hot. I see the harness in good condition.
 
Y tambien no falles de chequear la caja de fuses debajo del steering wheel. A veces los conecciones de solder se secan y fallan. Tambien hay un relay del ECU que se puede empezar a fallar.

I checked the fuses under the steering wheel and they looked good and the fuses under the seat and looked good.

Where is the ECU relay?

Muchas gracias por escribir en español, el mecánico no me ayudó porque en todo Colima hay cuando mucho 5 sprinters.
 

autostaretx

Erratic Member
Since i've had a couple of drop-offs with no codes stored (that a DAD can find), i agree that a momentary interruption of power may not leave a trace.

For me, they seem to happen (a) very very rarely (b) only when rolling at low speeds (c) while making a 90 degree right turn.
A few feet more roll-(re)starts the engine

Intermittents are sooo much fun... :thumbdown:

--dick ("very very rarely" = about 2 years apart (on average))
 
I find the ECU relay in a very good condition, it was firmly connected without dust or rust.

i went to five different mechanical workshop and the scan tools can NOT read the sprinter codeas because they noy have special key or another unknown cause.

tomorrow i will go to other mechanical workshop to get the fail codes.

this fail is intermitent, the engine lost the power of the diesel injection for seconds.

i think this fail can be caused for a sensor at the end of his life who allow the diesel injection.

I am not happy but i feel i am learning a lot with the help of the people of this forum, thank you.
 

Attachments

Midwestdrifter

Engineer In Residence
The problem is usually not the relay itself. The socket in the fuse block grips the relay pins. It can become bent. This makes the relays contact intermittent. Wiggling the relay slightly with the engine running may reproduce your problem.
 
Re: Truck engine shuts off for 1 or 2 seconds and continues on after the fault.

Yes, i think we are trying to fix the problem with the eyes closed. Here is difficult find a scan tool that can read the codes in a sprinter. I will look more mechanical workshops to find one with a proper scan tool. Thankyou
 
The problem is usually not the relay itself. The socket in the fuse block grips the relay pins. It can become bent. This makes the relays contact intermittent. Wiggling the relay slightly with the engine running may reproduce your problem.
I move a little the relay with the engine running and the problem did not reproduce.
 

lindenengineering

Well-known member
Re: Truck engine shuts off for 1 or 2 seconds and continues on after the fault.

Yes, i think we are trying to fix the problem with the eyes closed. Here is difficult find a scan tool that can read the codes in a sprinter. I will look more mechanical workshops to find one with a proper scan tool. Thankyou
Roberto
Hola y pregunta
Cual es sockete de enchufa diagnóstico?
Tal como
Rectangular come carros Gringos con 16 passadores o es redondo como formas europeos y además ese incluyendo las formas antiguas de MB con 40 pasadores.
Tal como:
http://pinoutguide.com/CarElectronics/car_obd2_pinout.shtml

O similar asi
https://www.google.com/search?q=vie...=C2BDWfGFGZbljwTPiJLQDw#imgrc=FzJ-MOAA7b1lvM:

O posiblemente ese???

https://www.google.com/search?q=rou...=ZmBDWbvjB5fMjwP1jbLQBA#imgrc=QO4pA-GGlqcfzM:

Dennis
 
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