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msharp63
Active Member
USA
17 Posts |
 Posted - 03/09/2018 : 11:37:13 AM
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| I have a 6.7 2013 Cummins that is consistently throwing a code for high crank case pressure, I have changed the crank case filter, the crank case pressure sensor, updated the calibration, and checked for any clogged air lines going to the crank case. Any ideas where I should go next? |
Edited by - msharp63 on 03/12/2018 1:47:43 PM
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slippert
Top Member
USA
630 Posts |
Posted - 03/09/2018 : 11:54:35 AM
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| I assume 6.7? Whats the code? |
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msharp63
Active Member
USA
17 Posts |
Posted - 03/09/2018 : 11:58:24 AM
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| yes sorry my typo 6.7, the spn 101 fmi 0, sometimes fmi 16 |
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slippert
Top Member
USA
630 Posts |
Posted - 03/09/2018 : 12:17:41 PM
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Harness wiring to sensor checks good....? Oil drain back tube and or check valve is ok? or breather oil separator plugged/restricted? CC breather and road draft tube open?
Not forsure by what I read above, but sounds like you have already done most of this and assume if you updated calibration you have Insite.... and access to quick serve online? |
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msharp63
Active Member
USA
17 Posts |
Posted - 03/09/2018 : 12:21:18 PM
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| Yes I have checked all the tubes and breather, and yes I have insite, I have followed everything it has suggested. CC filter seems to be getting a fair amount of oil in it, I am guessing it could be a piston ring, but hopping not. What are your thoughts? |
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enokradeht
Active Member
United States
27 Posts |
Posted - 03/09/2018 : 2:04:20 PM
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| overfull on oil? Turbo boosting through the seals? |
Edited by - enokradeht on 03/09/2018 2:06:44 PM |
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RBrian
Senior Member
United States
71 Posts |
Posted - 03/09/2018 : 2:05:55 PM
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| We had one that got dusted because of a bad seal at the bottom of the air filter. Freightliner latercame out with a service bulletin for a rubber band to put on the bottom of the filter housing to help keep dirt out. Pull the air filter out and look in the hose for dirt. Had to hone and re-ring to solve the crank pressure issue. |
Edited by - RBrian on 03/09/2018 2:09:22 PM |
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RBrian
Senior Member
United States
71 Posts |
Posted - 03/09/2018 : 2:17:28 PM
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| I should add that Feightliner covered the cost thanks to our dealer. They didn't do it without a fight though. |
Edited by - RBrian on 03/09/2018 2:18:04 PM |
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msharp63
Active Member
USA
17 Posts |
Posted - 03/12/2018 : 04:18:53 AM
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ok, I just had someone tell me that the new crank case filters for these engines do not have any filter material in them, they are just an empty case. Has anyone else run into this?
Thanks |
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Thomasbus24
Administrator
USA
4544 Posts |
Posted - 03/12/2018 : 04:52:28 AM
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| Last ones I got (back in August) were not an empty case. |
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slippert
Top Member
USA
630 Posts |
Posted - 03/12/2018 : 06:45:36 AM
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I just purchased some of those filters last week ... the ones i got are not empty case either...
So going back to what you have done, the wiring harness and connectors are all in working order? that sensor has to be able to send signal to ECM or if not it would throw a code, so if you have checked all parts and wiring thoroughly, maybe ECM issue and not receiving signal? |
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BigPapa
Advanced Member
215 Posts |
Posted - 03/12/2018 : 07:21:24 AM
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| I just received (4) Friday. They definitely have filter media in them. If I knew how to post a pic I would. |
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msharp63
Active Member
USA
17 Posts |
Posted - 03/12/2018 : 09:05:56 AM
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| I appreciate all the help, as for it being the ECM or wiring, I really do not think that can be the problem, I only get the code when the engine is under a load, such has pulling a hill, so I believe the high pressure is legit. |
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slippert
Top Member
USA
630 Posts |
Posted - 03/12/2018 : 11:38:43 AM
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How many miles/hours are racked up on your engine? In my fleet 2013 engines have 75000 to 125000 miles on them, so unless it got dusted or by some other odd circumstance... it should still be in factory warranty..?.
ON a side note since the first 6.7's came into the fleet here,... We purchase the extended 10 year unlimited miles coverage thru Cummins, cost has been around 3600$ so far... so if/when the problems that seem to happen while in factory warranty...continue after that expires we shouldn't have to pay the high price for turbos, injectors, sensors, DEF issues?, labor, etc... with the expenses already saved on these engines in first 5 years...I know it will for sure pay back in the next 5.... and we are only 50 miles from Cummins or IC dealer who is Cummins authorized repair center |
Edited by - slippert on 03/12/2018 11:43:55 AM |
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1Dieselman
Active Member
28 Posts |
Posted - 03/13/2018 : 10:22:49 AM
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| Hook a manometer to the crankcase to check pressure. Something we have run into here is a badly worn air compressor creating crankcase pressure |
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msharp63
Active Member
USA
17 Posts |
Posted - 03/28/2018 : 11:51:52 AM
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Just wanted to make an update, the problem ended up being the turbo seals. As for the breather filters with no filter material, cummins said they do have those empty case filters, but they are used as a stop gap until you can get the real problem fixed.
Thanks for all the help |
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waverlybus
Senior Member
94 Posts |
Posted - 04/26/2018 : 12:49:17 PM
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| msharp63 I am having the same problem with one of my bluebird visions with 115k on the clock. how did you check your turbo seals? I have noticed a turbo whine from it when coming off of route when it is parked and allowed to idle. I have checked my turbo to see if it was pushing oil through it but it appears clean, all cac boots and clamps are good. I have gutted my crankcase breather to try and get it through the school year but it still comes on from time to time. I have also cleaned out all oil return lines from the ccf housing and checked the pressure sensor wiring then replaced the sensor but it still comes up with the fault periodically in different circumstances. thanks for any help. |
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Topic |
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Crank Case Pressure
