I have a 95 international Thomas with a DT408 & MT643, we are at the base of the mountains in Georgia and I have started to notice after driving for over an hour and then starting to climb some hills im losing some power. Is this the to trans temp that could cause this? I'm not getting a warning light for the transmission temp and the engine temp is around 190 to 200 when climbing the bills according to the stock gage. Would I add a additional trans cooler if so?
I don't have a temp gage I looked for one but can't find the right size for the lines. I'm not that great with this Hd stuff. I'm good with cars but this bus is tricky. Do y'all know what size the trans lines are?
The fuel filter suggestion is because it sounds like you may be experiencing lack of power at the top of hills. Not sure where you are at, but I have to change diesel fuel filters much more frequently than I do gasoline fuel filters on my fleet. If you have old fuel filters, it could cause the issue you describe. That is a cheap, easy, and routine fix- and a great place to start.
the trans cooler on this is in the radiator. so perhaps try blowing out the radiator with pressurized air may be helpful. The Stock radiator should be enough to keep the trans cool, unless you have a fully loaded bus and are towing 2 more busses. This doesn't sound likely since your engine temps are good.
You didn't say how many miles are on this engine. Could be age related, too.
MT643 temp
Posted - 07/10/2019 : 10:51:34 AM
