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12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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  #1  
Old 03-27-2013, 09:05 AM
Newbie

   

Default Any idea what this connects to?

I replaced the seals in the vacuum pump and found this connector. I don't know what it goes to.

Click the image to open in full size.

---AutoMerged DoublePost---

Am I on the right forum? this is for diesels right

Last edited by pwcracer; 03-27-2013 at 09:05 AM.. Reason: Automerged Doublepost
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  #2  
Old 03-27-2013, 09:40 AM
MillerBoyzDiesel's Avatar
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Did you happen to break your oil press. sending unit off when you removed your pwr steering pump? Thats only one close that you could have broke off that I know of
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  #3  
Old 03-27-2013, 09:47 AM
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I will check that, That prompted me to look up the locations.
24 Valve Fuel System Components
I wonder if the 12 valve is the same or similar.

---AutoMerged DoublePost---

THis was the diagram I should have used..

http://www.dodgeram.org/tech/dsl/Fac...ocations-l.gif

Last edited by pwcracer; 03-27-2013 at 09:47 AM.. Reason: Automerged Doublepost
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  #4  
Old 03-27-2013, 09:54 AM
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best I can remember the oil press. sending unit is about the only sensor near where you were working that could get damaged. Last one I did I had to unplug it for the pwr steering resevoir to clear.
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  #5  
Old 03-27-2013, 04:12 PM
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fuel filter sensor???

osjr843's Sig:95 3500 Dodge Reg. Cab Flatbed, Auto, #8 fuel plate, AFC Tuned, K&N custom intake, 4" down pipe, 5" straight pipe w/ 7" tip.
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  #6  
Old 03-28-2013, 09:42 AM
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I have no oil pressure on the gauge, but the stupid thing is, I am not sure if it worked to start with. I bought the truck last fall as a basket case, and really don't remember.

I can not find the oil sender on this thing. I even looked around with a mirror. I have taken a ton of pics, hoping someone can help. (Where I think the oil pressure sensor should be, is a rounded off button sore of thing)



The connector wire seems to be 2 yellow wires.



Click the image to open in full size.
here is what it plugged into
Click the image to open in full size.

This is where I thought the OPS would be
[IMG]http://i1296.photobucket.com/albums/ag13/Gbfan55033
/20130327_220658_zps75066a1a.jpg[/IMG]

Other end of broken sensor.
Click the image to open in full size.

??
Click the image to open in full size.


Click the image to open in full size.
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  #7  
Old 03-28-2013, 12:32 PM
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The oil press. sender is on the block below and rear of the power steering resevior, should be able to see it from under the truck.
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  #8  
Old 03-28-2013, 05:59 PM
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It appears you broke your oil pressure sending unit.
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  #9  
Old 03-28-2013, 08:58 PM
Diesel Fan

MeanOlDude
   

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that is the oil pressure "switch" per the Cummins Tech that helped me with mine. They call it a sending unit but it is a switch. When you have oil pressure the switch closes and sends the current to the PCM the PCM then uses the signals from the engine speed sensor and "calculates the pressure info that it sends to the Oil Pressure Gauge. In all this there is no actual measurement of pressure. You can get one from Auto Zone for around $34. and the have a sensor socket that will make it easier. I had to break off the plastic part to get the socket to go on the old one but it fit over the new one perfect. IT IS A VERY FINE THREAD SO START IN CAREFULLY BY HAND. It is directly between the fuel prescreen and the Canned Ham Pump


Hope this helps you

---AutoMerged DoublePost---

stick your camera phone and movie the area and you should see it or rather half that is left.

Last edited by NEWBIE 98; 03-28-2013 at 08:58 PM.. Reason: Automerged Doublepost
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  #10  
Old 04-24-2013, 07:21 PM
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good info
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