bigredhdt Posted July 19, 2023 Report Share Posted July 19, 2023 I read in the volvo docs that the ecu will put the truck in limp mode when the j1939 cannot communicate. Anyone know the characteristics of the ved12 limp mode? Quote Link to comment Share on other sites More sharing options...
Darryl&Rita Posted July 19, 2023 Report Share Posted July 19, 2023 "Limp". Quote I have been wrong before, I'll probably be wrong again. 2000 Kenworth T 2000 w/N-14 and 10 speed Gen1 Autoshift, deck built by Star Fabrication 2006 smart fourtwo cdi cabriolet 2007 32.5' Fleetwood QuantumPlease e-mail us here. Link to comment Share on other sites More sharing options...
SuiteSuccess Posted July 20, 2023 Report Share Posted July 20, 2023 (edited) Depends. Usually around 15 mph if I recall and usually just enough time to get you off the interstate, maybe to next exit. The whole concept is to keep from tearing up your engine. If it can’t communicate it thinks worse case scenario. Now low coolant sensor will shut you down completely in about 10 seconds. If that pops up, get off the road immediately. Edited July 20, 2023 by SuiteSuccess Quote 2006 Volvo 780 "Hoss" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift Bed Build by "JW Morgan's Custom Welding" 2017 DRV 39DBRS3 2013 Smart Passion Coupe "Itty Bitty" "Don't go around saying the world owes you a living. The world owes you nothing. It was here first!" Link to comment Share on other sites More sharing options...
bigredhdt Posted July 31, 2023 Author Report Share Posted July 31, 2023 Dealer traced back to the ecm, despite them telling me these were on a long backorder wait list, it arrived the day after approving the quote. The service advisor told me that the truck was in 95% power reduction limp mode. Which equated to ver rough, low rpm idle. It would move at about 1mph which was great because it needed to move to get it in a place for the tow truck. Thinking back maybe I had some telltale signs. Intermittent tcm j1939 communication errors, intermittent low oil alarms and intermittent outside air temp readings. Based on the drive home, the downshifts seem crisper. Idle seems better and throttle response seems better than before it went into limp mode. Quote Link to comment Share on other sites More sharing options...
rickeieio Posted July 31, 2023 Report Share Posted July 31, 2023 (edited) Another happy ending!!! Good to hear it was fairly simple, though not likely cheap. BTW, thanks for stopping back and letting us know the outcome. So often, someone starts a thread, gets suggestions, and never lets us know how it turned out. Edited July 31, 2023 by rickeieio Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
bigredhdt Posted August 6, 2023 Author Report Share Posted August 6, 2023 I have heard others with the oil wicking issue, so I wanted to ask this question. I opened up the oil level sensor and there is oil in the connector. Do I need to change the sensor or just get the anti wicking jumper or both? Quote Link to comment Share on other sites More sharing options...
Darryl&Rita Posted August 6, 2023 Report Share Posted August 6, 2023 30 minutes ago, bigredhdt said: I have heard others with the oil wicking issue, so I wanted to ask this question. I opened up the oil level sensor and there is oil in the connector. Do I need to change the sensor or just get the anti wicking jumper or both? Two unrelated problems. If the connector on the oil pressure sensor is wet with oil, it's likely the sensor is on it's way out. If the passthroughs haven't been changed, change them. They're due. Quote I have been wrong before, I'll probably be wrong again. 2000 Kenworth T 2000 w/N-14 and 10 speed Gen1 Autoshift, deck built by Star Fabrication 2006 smart fourtwo cdi cabriolet 2007 32.5' Fleetwood QuantumPlease e-mail us here. Link to comment Share on other sites More sharing options...
bigredhdt Posted August 6, 2023 Author Report Share Posted August 6, 2023 What about fsb-047-284? I really don't have a way to determine if oil has wicked into the harness. https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://static.nhtsa.gov/odi/tsbs/2013/SB-10083830-6903.pdf&ved=2ahUKEwiA7tTmlseAAxUNjYkEHTJ6CxsQFnoECBQQAQ&usg=AOvVaw252M5ZZnTsWT5fEG1T6mmD Quote Link to comment Share on other sites More sharing options...
Cotreker Posted September 1, 2023 Report Share Posted September 1, 2023 What are the passthroughs?? Guessing I can do visual inspection of my sensor for oil leaking. How common is this issue on 2006 Volvo? Quote Volvo 670 / 2006 10-Speed ATV's & Sleds 2017 Host Mammoth Slide-In Camper on Deck Jackalopee Build article published here Link to comment Share on other sites More sharing options...
rickeieio Posted September 6, 2023 Report Share Posted September 6, 2023 Big Red, have you had any success? Inquiring minds and all........ Quote KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio1@comcast.net Link to comment Share on other sites More sharing options...
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