Philmack460 Posted November 30, 2015 Share Posted November 30, 2015 Hi, owner operator of an 04 mack with 6-4 code coming up lots mainly when i'm loaded with '53 step deck of hay, pretty frustrating, looking for any tips, also pretty new driver, only a year driving my big rig, look forward to any comments. Thanks. Quote Link to comment Share on other sites More sharing options...
Jake86 Posted November 30, 2015 Share Posted November 30, 2015 I know nothing about the newer electrical motors, so I am sorry that I can't be if more help. Just wanted to welcome you to BMT!Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
j hancock Posted November 30, 2015 Share Posted November 30, 2015 Welcome! 6-4 is a frequency issue with J1939 link. Others will have to explain what it is. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
Philmack460 Posted December 4, 2015 Author Share Posted December 4, 2015 Thanks guys, I managaed to find out it is communication between the truck computer and engine computer, but I was hoping someone might have had first hand experience with this problem and managaed to cure it, looking for hints. I really like the truck and enjoy getting into driving a big rig but just a little frustrated. Gonna start trying a few things and see what happens. Quote Link to comment Share on other sites More sharing options...
Philmack460 Posted February 24, 2016 Author Share Posted February 24, 2016 Can anyone tell me what my oil temp should be when pulling a load ? Im getting around 210, does that sound about right ? Quote Link to comment Share on other sites More sharing options...
Timothy Maikshilo Posted February 24, 2016 Share Posted February 24, 2016 Welcome! Not sure on your oil temp, someone will know for sure. Quote Link to comment Share on other sites More sharing options...
Wobblin-Goblin Posted February 24, 2016 Share Posted February 24, 2016 Please remember to post a picture of your truck. Rule 37-2 of the BMT code requires all threads of vehicles to have at least one picture of said rig or your account could be terminated with great haste.Thank you. Quote Link to comment Share on other sites More sharing options...
j hancock Posted February 24, 2016 Share Posted February 24, 2016 Can anyone tell me what my oil temp should be when pulling a load ? Im getting around 210, does that sound about right ?210 is OK. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
Philmack460 Posted February 24, 2016 Author Share Posted February 24, 2016 Thanks, will post picture soon. Quote Link to comment Share on other sites More sharing options...
Philmack460 Posted April 19, 2016 Author Share Posted April 19, 2016 Just a little update if anyone is interested, Pulled a couple of loads of hay in the last week, as i said before, my truck derating me, i think it is linked to oil temp. I found when oil hit 195℉ it derates engine, the wires from engine computer runs on engine behind oil filters, it seems it is cooking wires and affecting communication between computers. So pulled wires away freengine and helped, Will keep you posted. Quote Link to comment Share on other sites More sharing options...
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