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Old 07-01-2014, 06:11 PM   #1
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3126 gets warm acts funny idling

have a cat 3126 just dove ky after driving 500 miles the engine starting idling funny when i finally called it a night just died wouldn't restart woke up in the morning started fine ran out the rest of the trip no problems coming back it died in a traffic jam waited an hour it restarted engine ligt was on and oil light was red also while waiting for goodsams road service it restarted after a hour drove until i went to refuel then wouldn't restart again called again within the hour check engine light and oil light again restarted after an hour again i dove it untill we pulled over in sc then restarted this morning no problems came on home any one have anything happen like this ?
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Old 07-01-2014, 06:25 PM   #2
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The HEUI system in our engines depends on good oil pressure in order to run properly. I'd say get the coach in to have the codes in the ECM checked.
Some have reported similar complaints with just a sensor being bad others required a HEUI pump replacement.
The info I have is on the 3126B, but I think a lot of the operating systems are similar.
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Old 07-06-2014, 08:03 AM   #3
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thanks Skip i called Ring power met a guy Hector he told me to bring it in and they will check the codes says no cost too
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Old 07-06-2014, 08:59 AM   #4
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I'm hoping it's just a sensor. Keep us informed on the outcome.
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Old 07-06-2014, 04:21 PM   #5
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i will i hope so too the ecp can be rebuilt for 640 so we will see
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Old 07-08-2014, 05:41 PM   #6
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well had ring power hook up today it was the sensor then we did an update flash hopefully we are good to go the data they can give you is unbelievable in report form glad someone here told me to ask for it this board Rocks
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Old 07-08-2014, 10:48 PM   #7
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fxdave; great that your fixed up , but which sensor did they replace.
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Old 07-09-2014, 12:17 PM   #8
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Yay. I also recently replaced a sensor that solves a ton of odd downstream side effects.
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Old 07-12-2014, 07:43 AM   #9
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the actuation pump sensor i believe that is what gave us the data anyways the only other thing would a been the driver on the pump he said
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Old 07-17-2014, 07:44 AM   #10
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Skip
Dont know the name of it it doesn't say but its the sensor right on the top of the engine hope this helps then they updated the ecp
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Old 07-17-2014, 08:26 AM   #11
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Thanks Dave ; that's where the activation pressure sensor sits.
Would be passenger side , rear of the head , in diesel pusher application.
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Old 07-17-2014, 05:14 PM   #12
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thats it
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