ramsey

On 8/26/2020 at 12:33 PM, JJmartin said:

I have a 98 ch613 mack been running great got to work this morning cranked truck then it died it won't stay running I cannot figure it out ive put 3 new batteries and new alternator it will run until you turn on all the lights and the electronic malfuction light and engine shutdown comes on then it dies 

I had close to the same issue  took it to a mack dealership to get it fixed  turned out to be a ecm shorted out 

I could see turbo boost leaks, but I wouldn't think fuel pressure  would change that fast within a hour from running normally  to no power  . I could be  wrong.  I'll change my fuel filters and see

54 minutes ago, Jamkar said:

How heavy? Has it always been the same? Which engine/trans? 

anywhere between 76,000 and 80,000 . it just started doing this  after a major rain and the work site was terrible  with several inches of mud to work in . before that not one issue with taking off it's a 460 with a super 10

heres my issue,  at the ending of the day  on the last load on a very muddy work site my 2000 mack vision cx613  really struggled to take off loaded from a stop . still continues to this day,  changed air filter, had mechanic check clutch to see if its slipping  ,he said it's good and not needing adjustment.  the transmission  shifts normally,  not over heating,  rear end temps are normal. truck just hasn't got the power to take off loaded and it's even sluggish empty,  dont know if a spring came off the pressure plate or could it be a joint, turbo sensor, turbo,  I really have no clue any thoughts would be appreciated . it does put black exhaust out when shifting,  not a real lot but does for about 5 seconds per year shifted

I also have a 2000 mack vision cx613  I have no power on a take off loaded.  it is a real struggle to keep truck motor from stalling out when loaded at a stop  changed air filter  and no difference. was told it could also be turbo sensor.  clutch is good bo adjustment need  an clutch brake doesn't slip transmission guage and rear end guage  all run normal temps with no sounds coming out of them. any ideas?