Cat C15 Acert oil pressure issue
06-17-2019, (Subject: Cat C15 Acert oil pressure issue ) 
Post: #1
Cat C15 Acert oil pressure issue
Driver said oil pressure while driving went straight to 0 and had no throttle response. As he put it in neutral, oil pressure went back up to normal. He said that happened to him twice today on a 500 miles run today. I checked the codes with Cat ET and there 285-7 and 385-1 code.
385-1 low intake valve actuation system oil pressure
285-7 intake valve actuator #1 not responding.


My concern is why would the oil pressure gauge go straight to 0 and come back if the problem seems to be in the intake valve actuators/housings?
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06-17-2019, (Subject: Cat C15 Acert oil pressure issue ) 
Post: #2
RE: Cat C15 Acert oil pressure issue
sounds like electrical issues giving the computer a a heart attack for a second.


User's Signature: 2010 Lonestar - CM871 - 13sp - 3.70s, 2016 T680 - cm2350 - 13sp - 3.36s - skateboarder
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06-18-2019, (Subject: Cat C15 Acert oil pressure issue ) 
Post: #3
RE: Cat C15 Acert oil pressure issue
Have seen the ISX do that and it was the sending unit going bad. Or, you could have a short in the wiring, that is where I would start, wiring and then oil pressure sending unit. No clue on the codes.
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